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Review

Awareness and attitudes toward corneal donation: challenges and opportunities

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Pages 1049-1059 | Published online: 07 Jun 2018

Abstract

There is a severe shortage of donor corneas available worldwide for transplantation, with the number of patients in need of transplant greatly exceeding the number of cornea tissues available. Understanding awareness and attitudes about corneal donation worldwide is a critical step toward addressing this shortage. In this review, awareness of corneal donation and reported willingness to donate are summarized from 55 published studies across 13 countries. In general, many more respondents indicated positive attitudes toward eye donation and willingness to donate their eyes than the number of respondents who have pledged their eyes for donation, suggesting an unrealized potential of additional donors. Specifically, of 38,851 respondents across all included studies, 52% endorsed a willingness to donate their eyes after death, yet only 5% reported being a pledged donor. The most commonly cited reason for not being a registered eye donor was lack of awareness about eye donation. The disconnection between the large number of people who expressed willingness to donate and the scarcity of individuals who have pledged their eyes for donation could be addressed through educational media campaigns, collaborations with medical personnel, partnerships with grief counselors and religious leaders, use of social media, and educational sessions with medical students and staff.

Introduction

Blindness from corneal opacity is a significant public health burden that is estimated to affect 1.5 million persons and accounts for about 4% of cases of blindness worldwide.Citation1 A disproportionate share of corneal blindness falls on Asia, where estimates of corneal blindness in China have ranged from 10 to 15% of all blindness.Citation2,Citation3 Similarly, the Andhra Pradesh Eye Disease Study in India found the prevalence of corneal blindness to be 0.13%, which constituted 9% of all blindness.Citation4

Corneal transplantation is an effective treatment option for many patients with corneal disease, with a high success rate in restoring sight. Unfortunately, a major limiting factor in performing corneal transplants is availability of donor tissue, especially in Asian nations.Citation5 A recent global survey of eye banking and corneal transplantation quantified the drastic mismatch between supply and demand of donor corneas worldwide, finding only 1 cornea available for every 70 needed.Citation6 The shortage of available corneal tissue highlights the importance of exploring limiting factors in corneal donation worldwide. The purpose of this review is to examine awareness and attitudes about corneal donation worldwide and to use this information to identify possible interventions to increase rates of cornea donation.

Methods

A nonlanguage-restricted search of the literature was conducted for publications from any date in the PubMed/MEDLINE and Google Scholar databases. Search terms included “eye donation,” “cornea donation,” “attitudes AND awareness AND eye donation,” “interventions AND eye OR cornea donation,” and “attitudes OR awareness OR interventions AND eye OR cornea OR organ donation.” Abstracts were reviewed for relevance. References of included papers were also reviewed for further sources. Out of 127,712 initial results from the literature search, 330 articles were screened for relevance based on title or abstract. In total, 55 articles were found to meet inclusion criteria for this review. See for a flow chart of article selection.

Figure 1 Flow chart of article selection.

Figure 1 Flow chart of article selection.

Awareness of corneal donation worldwide and willingness to donate

We identified 55 studies that have evaluated awareness of corneal donation across the world, with methods ranging from surveys to door-to-door interviews (). Over half of these studies come from India, where the shortage of cornea tissue for transplant is particularly severe.Citation4 Nations represented in this review include Australia,Citation7 China,Citation8Citation10 Ethiopia,Citation11Citation13 Ghana,Citation14 India,Citation15Citation45 Malaysia,Citation46,Citation47 Nepal,Citation48,Citation49 Nigeria,Citation50Citation53 Pakistan,Citation54,Citation55 Saudi Arabia,Citation56,Citation57 Singapore,Citation58,Citation59 Turkey,Citation60 and the United States.Citation61 Study populations include eye patients, family members of eye patients, general community populations, adolescents, university students, physicians, and medical or health science students. In total, these studies have surveyed or interviewed a total of 38,851 people about awareness or willingness to donate their eyes after death.

Table 1 Awareness of corneal donation and willingness to donate across 55 included studies

While the methods vary widely between studies, particularly in survey design and question wording, general themes can be summarized. Awareness of corneal donation ranged from 8.4% among eye patients in Ghana to 100% among a sample of medical students in India,Citation14,Citation44 averaging 71% across all included studies. Willingness to donate ranged from 7.3% among surveyed urban Pakistanis to 90% of patients at a tertiary eye institute in the United States,Citation55,Citation61 averaging 52% across all studies. Of note, these figures may be artificially high as social desirability bias may lead some respondents to give an untruthful positive response. Even among studies with a large percentage expressing willingness to donate their eyes after death, the actual number who have pledged their eyes for donation ranged only from 0.1% to 11%,Citation49,Citation61 averaging 5% between all studies, indicating a disconnect between having an interest in eye donation and registering as an eye donor ().

Factors associated with awareness and willingness to donate

Several characteristics have been associated with willingness to donate eyes. One factor is race. Among a United States population, white race compared to black race was associated with higher rates of willingness to consider donation.Citation61 Among Singaporean adults, ethnic Chinese were significantly more likely to report being willing to donate compared to ethnic Malays.Citation59 In contrast, among outpatients in Malaysia, willingness was higher among those who identified as Indian race compared to those who identified as Chinese.Citation46

Although most studies found no association between gender and willingness to donate, male gender has been positively associated with willingness to donate corneas after death in some studies among Chinese and Indian residents.Citation8,Citation33,Citation36 Older age has been inconsistently identified as a factor associated with increased willingness to donate.Citation8,Citation39,Citation58 However, Dandona et al and Palamar et al found that older age was associated with decreased willingness to donate,Citation20,Citation60 and other studies found no association between age and willingness to donate.Citation9

Regarding religion, atheists and non-Muslims had the highest rates of willingness to donate among Singaporean adults,Citation58,Citation59 and non-Muslim religion has been associated with increased willingness to donate among other global populations.Citation11,Citation20 Higher levels of education are also associated with increased willingness to donate.Citation8,Citation11,Citation13,Citation20,Citation35,Citation59Citation61 Not surprisingly, being a registered tissue donor was associated with higher levels of willingness to donate corneas after death among a Chinese population.Citation8

One modifiable factor associated with increased willingness to donate is awareness about eye donation and knowledge about corneal transplantation, with higher knowledge scores correlating with increased willingness to donate in several studies across different communities in the world.Citation9,Citation11Citation13,Citation58,Citation59 Survey respondents who indicated that they have discussed eye donation in the past were also more likely to donate.Citation9 While surveys of medical professionals generally had higher reported rates of awareness of eye donation, there is room for improvement among this influential population.Citation48,Citation51,Citation52

Learning about eye donation

Most respondents reported learning about eye donation through television or other media, suggesting a possible outlet for future public health campaigns.Citation13,Citation23,Citation27,Citation30,Citation33,Citation35,Citation36,Citation39,Citation40,Citation46,Citation56 Even among medical professionals in India and Nigeria, television and newspapers were the most common source of information about donation, outranking lectures and seminars.Citation23,Citation26,Citation28,Citation40,Citation51 One survey of secondary school students was an exception, with the most common source of knowledge about corneal donation coming from family, friends, or medical staff followed by media.Citation24

Reasons cited for choosing to be an eye donor or not

The most common reasons for being willing to donate include the opportunity to help the blind,Citation12,Citation13,Citation23,Citation24 the feeling that eye donation is a noble act,Citation13,Citation23 and the thought that eyes are not required after death.Citation24

Commonly cited reasons for not being a registered donor or being unwilling to donate include not having had enough information about eye donation to decide or lack of awareness about eye donation,Citation13,Citation23,Citation26,Citation27,Citation33,Citation40,Citation51,Citation57,Citation58,Citation61 a desire to keep the body intact after death,Citation12,Citation22Citation24,Citation39,Citation40,Citation48,Citation58,Citation59,Citation61 concerns about family’s support of the decision to donate,Citation13,Citation23,Citation24,Citation26,Citation39Citation41,Citation58,Citation59,Citation61 religious objections,Citation13,Citation22,Citation39,Citation48,Citation51,Citation61 refusal to discuss the issue,Citation41 and feeling that one is too old or unhealthy to donate ().Citation23,Citation40,Citation51,Citation61

Table 2 Reasons cited for not being willing to donate or not being registered as an eye donor

Characteristics of registered eye donors

Several studies have evaluated the characteristics of eye donors. Ranjan et al analyzed the demographic profile of registered eye donors in eastern India.Citation62 During a 4-year period, 743 corneas were retrieved from 373 donors. The mean donor age was 52 years, there were twice as many male compared to female donors, and most common causes of death included cardiorespiratory failure and road traffic accident. Most of the consents to donate were given by sons or daughters of the deceased. Notably, the majority (86%) of donors were motivated to donate by eye donation counselors, whereas only 14% were voluntary without this prompting.Citation62

At another site in India, Ronanki et al interviewed 50 next of kin of deceased eye donors to understand the motivations of the donors.Citation39 They found that 82% donated without prior pledging and that the family took initiative for donation in 84% of cases. The reasons individuals elected to donate included feeling that donation is good work and finding satisfaction in giving sight to the blind.Citation39

In China, Liu et al evaluated the demographic characteristics of 918 voluntary donors who registered in Beijing Tongren Hospital Eye Bank over a 10-year period.Citation63 The authors found that age over 50, female gender, Han race, tertiary-level education, and white collar work were factors that were significantly associated with being a registered donor, which are generally consistent with factors associated with expressed willingness to donate. In a separate survey of registered tissue donors in Nanjing, China, Chu et al identified characteristics that differed between registered donors and control residents.Citation8 Tissue donors had better knowledge about the donation process, had less misconception about disfigurement from corneal retrieval, and were significantly more likely to have discussed donation with their family.Citation8

Eye donation for research

While the general emphasis of survey studies on attitudes about eye donation has focused on the need for corneal tissue for clinical transplantation, it is also notable that there is a tremendous unmet need for eye tissue for research.Citation64 Donor tissue is particularly critical for research on eye diseases that occur primarily in humans, such as age-related macular degeneration and open-angle glaucoma. Unfortunately, the availability of eye tissue for researchers has been declining.Citation65 Statistics compiled by the Eye Bank Association of America demonstrate a continued downward trend of both the proportion and the total number of eye tissues distributed for research in the United States. Specifically, in 2016, 12.5% of a total of 136,318 total whole eyes and corneas donated were distributed for research, which is down from 16.5% of 116,990 donor eyes in 2012.Citation66 Researchers have expressed concerns about the declining availability of human eye tissue to pursue their study of blinding diseases.Citation64

Efforts to ameliorate the critical shortage of tissue for research have included increasing communication with eye patients about the opportunity to donate for research and fostering collaborations with local eye banks. Eye tissue used for research generally does not qualify for corneal transplantation due to presence of disease or advanced age, allowing pursuit of parallel goals to recruit eye donors for transplant and research use. Pilot survey studies suggest support for eye donation for research among eye patients and eye care providers, including the appropriateness of bringing up the topic at clinic appointments.Citation61,Citation67 Among Australian patients with age-related macular degeneration, a 15-minute counseling session about eye donation led to a greater interest in donating for 68% of patients interviewed, particularly for the purpose of research on their disease.Citation68 Along the same lines, a proposed, prospective eye donation registry for research was generally well received among a population of ophthalmic patients, with 55% of those surveyed willing to consider joining the hypothetical donor list, suggesting unmet potential to recruit prospective donors.Citation61 Additionally, collaborative programs between academic centers and eye banks have been proposed to ensure that individuals with a wish to donate for research would have their eyes procured despite not qualifying for clinical transplant use.Citation69 As interventions increase awareness about eye donation in general, more opportunities will arise to discuss the possibility of donating for research with patients who may have a wish to do so.

Interventions to increase donor rates

A common theme across the included studies is that few respondents were registered donors, but many had positive views toward eye donation and expressed willingness to donate their eyes. For instance, Dandona et al found that 44.9% of urban Indian adults surveyed were willing to donate their eyes, but only 1.9% were registered.Citation20 Similar findings were noted in a survey of rural Indian adults, with 32.9% willing to donate but only 0.5% had pledged their eyes.Citation27 This same pattern was also noted among rural Nepalis and patients in the United States.Citation49,Citation61 The disconnect between having an interest in donating and being registered to donate suggests an unmet potential to recruit more eye donors.

Media campaigns

Informational media campaigns about eye donation and the process to register as a donor could be an effective intervention to increase donor rates, especially given that television and newspapers are the most commonly cited sources of information on donation. Knowledge about corneal donation is a factor positively associated with willingness to donate, and knowledge scores on the donation process have been generally low across several studies, even among health professionals.Citation21,Citation40,Citation48,Citation52 Further demonstrating the general lack of knowledge of corneal donation, only half (58%) of cornea recipients in Israel were aware that the graft came from a deceased person.Citation70 It is also notable that the majority of respondents in various surveys were unaware about how to become an eye donor,Citation8,Citation10,Citation21 and needing more information was the most commonly cited reason for not being a registered donor across multiple studies. Increasing knowledge about eye donation and informing the public about the process of registering to pledge one’s eyes after death through media campaigns could tap into the tremendous unmet potential of those who are willing to donate their eyes but are unaware of the process,Citation71 as long as these interventions are carefully designed to communicate accurate information while minimizing bias.Citation72

Education initiatives for medical staff

Several interventions to increase eye donor rates have been published in the literature. At the University of Iowa, a retrospective review found that 12 of the last 50 consecutive deaths at the cardiovascular intensive care unit could have qualified as cornea donors, but only one donated eyes after death.Citation73 Nurses and house staff cited not thinking to ask as the most commonly cited obstacle to procurement. In order to increase rates of donation, a 30-minute in-service education session was held with nurses and house staff to review transplantation eligibility criteria and logistics of eye donation. The authors found that procurement of transplantable corneas doubled the year after the intervention to 42 compared to average of 22 per year during the 3 years prior. This study highlights the benefits of collaborative efforts with intensive care staff in facilitating discussion of eye and organ donation at the end of life.

Involvement of grief counselors and religious leaders

Similarly, the use of grief counselors in intensive care units in India has been associated with a significant increase in eye donation. Counselors play a particularly important role in providing discussion about eye donation with next of kin, for whom lack of information on the topic leads to high rates of procurement refusal.Citation74,Citation75 Sharma et al conducted a prospective study in which grief counselors identified 554 critically ill patients and discussed the topic of eye donation with their families.Citation76 In a follow up survey, the grief counselors had the largest influence on the decision to donate. In a separate pilot intervention, counselors from a regional eye bank were notified of every hospital death and reached out to the next of kin to discuss the possibility of eye donation. This intervention resulted in a 68% increase in cornea donations compared to the pre-intervention phase.Citation77 Further highlighting the importance of grief counselors in promoting eye donation, a review of eye tissue donors in India found that grief counselors motivated a total of 86% of donors.Citation62 The use of eye donation counselors, while resource intensive, can significantly increase the conversion rate for corneal donors.

Given the cultural sensitivity of pledging eyes at the end of life, the involvement of religious leaders has been demonstrated to increase willingness to donate eyes after death. Gogate et al enlisted the help of local priests to discuss the importance of giving and the opportunity of eye donation when giving the last rites to a dying family member.Citation78 The incorporation of the discussion of eye donation in the context of religious ritual increased the number of corneas collected from none in the year before implementation to 254 during the first year of the program.

Interventions from the organ donation literature

Inquiring about donation registration at government offices

Insights on interventions to increase donor rates can also be gleaned from the larger literature on organ and tissue donation. In the United States, nearly all registered organ and tissue donors joined the registry through their local Department of Motor Vehicles (DMV) office, which issues drivers’ licenses.Citation79 Additional education and motivational sessions with clerks at these offices has yielded yet higher donor rates,Citation79Citation81 and the inclusion of an informative video about organ donation at the time of DMV appointment has increased donor rates among minority groups.Citation82 The incorporation of a prompt for organ, eye, and tissue donation at government offices may have similar success in other countries as long as varying cultural norms are adequately addressed.

Social media

The use of social media has been a recent development for communicating about one’s intention to donate across a social network. Cameron et al describe the positive effects on organ donor registration following the decision by Facebook, a social media website, to allow users to designate “organ donor” as part of their user profile.Citation83 After making this designation, users in the United States are given a link to their state registry to complete the registration process, and their social media contacts are made aware of this status update. On the first day of this initiative, there was a 21-fold increase in new online organ and tissue donor registrations compared to baseline, where there was no increase in registrations at the DMV over this timeframe. In another Facebook initiative, Kumar et al collaborated with the social media company to design a mobile application (or app) as a platform for those awaiting organ transplant to communicate their personal story.Citation84 Compared to a control group, those who used the app were 6 times more likely to have a living donor come forward on their behalf. As more of the world becomes connected to the Internet, online registration and promotion through social media platforms is a promising opportunity to increase donor rates for solid organs and eye tissues alike.

Medical school coursework

Dedicating coursework for medical students about organ donation has led to increased knowledge about the organ donation process at two American universities.Citation85,Citation86 Although levels of awareness about eye donation are generally higher among medical professionals compared to the general population, knowledge scores were generally modest, suggesting an opportunity for education intervention among this influential group.Citation48,Citation51,Citation52

Limitations

There are several limitations to this review. First, research methods vary greatly between included studies, particularly regarding question wording and interview methods. In particular, differences in question wording, such as asking if one is willing to donate her eyes versus asking if she is willing to consider eye donation, could lead to substantial variation in responses. Along the same lines, there are major differences between the three main outcome measures selected for this review: awareness about eye donation, willingness to donate, and self-reported status as a registered eye donor. Due to variation in study designs, all three outcomes were rarely reported in a given article, and few surveys inquired about self-reported status as a pledged donor. Furthermore, this review is unable to examine the exact relationship between awareness about eye donation and expressed willingness to donate due to variation in study designs. While this review aims to include a wide range of studies about attitudes on eye donation, the heterogeneity of study designs does limit direct comparisons between studies. Second, there is over-representation of a small number of countries among the included studies. In particular, a large body of the work reviewed in this paper was conducted in the developing world, with a disproportionate number conducted in India in particular, which may limit applicability of these findings elsewhere. For instance, attitudes about eye donation and potential interventions to increase donor rates may differ between areas of the world with a history of infrastructure for eye banking and organ donation compared to areas that are still growing these programs.

Conclusions

A large body of research has surveyed awareness of eye donation and willingness to donate eyes in various global populations. In general, respondents have favorable views toward eye donation, and many more have indicated a willingness to donate than have pledged to be donors. The most commonly cited reasons for not being a registered donor are lack of awareness about eye donation and not knowing how to pledge one’s eyes for donation after death. These characteristics indicate tremendous potential for drastically increasing the number of registered eye donors worldwide through educational campaigns. Additionally, collaborations with medical personnel to identify potential donors and culturally sensitive interventions between grief counselors and next of kin have led to increased donor rates by informing decision-makers of the opportunity to donate eyes after death. Finally, successful interventions from the larger organ donation literature may also be incorporated to increase eye donation rates, including the integration of organ registration with local government offices, the use of social media platforms, and educational interventions for medical students. With the current severe shortage of one cornea available for every 70 needed worldwide,Citation6 there is a strong impetus for further interventions and research to tap into the tremendous unmet potential of willing but unregistered eye donors.

Disclosure

The authors report no conflicts of interest in this work.

References

  • PascoliniDMariottiSPGlobal estimates of visual impairmentBr J Ophthalmol201296561461822133988
  • LiangYBFriedmanDSWongTYPrevalence and causes of low vision and blindness in a rural Chinese adult population: the Handan Eye StudyOphthalmology2008115111965197218684506
  • XuLWangYLiYCauses of blindness and visual impairment in urban and rural areas in Beijing: the Beijing Eye StudyOphthalmology200611371134114116647133
  • DandonaLDandonaRSrinivasMBlindness in the Indian state of Andhra PradeshInvest Ophthalmol Vis Sci200142590891611274066
  • HongJShiWLiuZLimitations of keratoplasty in China: a survey analysisPLoS One2015107e013226826161870
  • GainPJullienneRHeZGlobal survey of corneal transplantation and eye bankingJAMA Ophthalmol2016134216717326633035
  • LawlorMKerridgeIAnkenyRDobbinsTABillsonFSpecific unwillingness to donate eyes: the impact of disfigurement, knowledge and procurement on corneal donationAm J Transplant201010365766320121739
  • ChuTWangLNYuHZhangRYAwareness of cornea donation of registered tissue donors in NanjingChin Med Sci J2013281202723527802
  • WangXJinLWangJAttitudes and knowledge concerning corneal donation in a population-based sample of urban Chinese adultsCornea201635101362136727467045
  • ZhaoMLiHYangJXuZYPengJCWangGJ重庆市角膜捐献人 群的现状分析 [An investigation of current situation of corneal donors action in Chongqing]Zhonghua Yan Ke Za Zhi2003397422426 Chinese [with English abstract]12921674
  • GelawYAmbawFSocio-demographic correlates of attitude towards corneal donation among health science students and academic staff of Jimma UniversityEthiop Med J2010481414720607997
  • GessesseGWTilahunYWillingness to donate eyes and associated factors among adults in a rural community in Central EthiopiaJ Ophthalmol East Cen South Africa20131712024
  • HussenMSGebreselassieKLWoredekalATAdimassuNFWillingness to donate eyes and its associated factors among adults in Gondar town, North West EthiopiaBMC Ophthalmol201717117828969612
  • Ackuaku-DogbeEMAbaidooBEye donation: awareness and willingness among patients attending a tertiary eye center in GhanaWest Afr J Med201433425826326445069
  • AcharyaMChakuDDaveADasAPatelNVKnowledge and attitude toward corneal donation among high school children in northern IndiaCornea2018371e2e328872521
  • AhirwarRKShidhayePREkkaIJSaxenaDMStudy of knowledge and willingness regarding eye donation among medical students of a tertiary care teaching hospital of central IndiaInt J Community Med Public Health20163923632368
  • AmruthMKulkarniAGKambleSVBorkerSARekhaRIsmailIMAwareness and perception regarding eye donation among adult patients and their attendants in a primary health centre, South IndiaInt J Health Sci Res20144918
  • BiswasJBandyopadhyaySDasDMondalKKSahaIRayBA study on awareness about eye health care and eye donation among secondary level students of North Kolkata, IndiaKathmandu Univ Med J (KUMJ)201083131732022610737
  • ChackoHMMathewJJoseJDominicJKnowledge and attitude regarding eye donation among the adolescents: a co-relational studyNitte Univ J Health Sci2014416671
  • DandonaRDandonaLNaduvilathTJMcCartyCARaoGNAwareness of eye donation in an urban population in IndiaAust N Z J Ophthalmol1999273416616910080330
  • DhaliwalUEnhancing eye donation rates. Training students to be motivatorsIndian J Ophthalmol200250320921212355696
  • DuggalMBrarGSPrasadVSGuptaAPublic attitudes toward eye donation in Northwestern IndiaTransplant Proc2003351192012591288
  • GuptaAJainSJainTGuptaKAwareness and perception regarding eye donation in students of a nursing college in BangaloreIndian J Community Med200934212212519966958
  • GuptaPCDuggalMJamirLKnowledge and attitude toward corneal donation among high school children in northern IndiaCornea201736561161628306599
  • KhanNAgrawalPCTiggaMSainiVKGuptaSLevel of awareness regarding eye donation among patients attending eye OPD at tertiary hospitalNatl J Community Med2015627073
  • KhandelwalRKatrePPerception and awareness about eye donation in health-care providers in central India: challenges and solutionsJ Evid Based Med201524480668073
  • KrishnaiahSKovaiVNuthetiRShamannaBRThomasRRaoGNAwareness of eye donation in the rural population of IndiaIndian J Ophththalmol20045217378
  • KumarMPNaikBSTo assess the knowledge of the undergraduate medical students regarding eye donationInt J Res Health Sci201313244247
  • KumarSShuklaUSAgarwalPAwareness and knowledge on eye donation among students at BhopalNatl J Community Med201234685689
  • LalBUsgaonkarUNarvekarHVenugopalDAwareness and knowledge on eye donation among allied health sciences, medical, and nursing students in GoaJ Current Ophthalmol Epub201837
  • MagdumRArunSMushtaqISharmaNTo study awareness and willingness of eye donation among paramedical workersJ Clin Ophthalmol Res2015329597
  • NekarMSLokareLGokhaleSAGodboleMMulkipatilSYMaHeshVAwareness of eye donation among college students of Hubli City, KarnatakaInt J Biomed Res201234201204
  • PanigrahiSRathBSahuRKRathSSethiSKMahapatraKKnowledge, attitude and willingness for eye donation in general population of Odisha in eastern IndiaIOSR J Dent Med Sci201716716
  • PanigrahiSSahuRKRathBRathSPadhiSMekupCKKnowledge, attitude and willingness about eye donation among medical and nursing students in a medical college hospital of southern OdishaSch J App Med Sci201757A25452551
  • PatilRPrasathERBoratneAGuptaSKDattaSSStatus of eye donation awareness and its associated factors among adults in rural PondicherryJ Clin Diagn Res201592LC01LC04
  • PatilRGothankarJBhatPSalujaJSaneSEye donation: awareness and willingness among shopkeepersInt J Community Med Public Health20174620562059
  • PrabhuPBConcerns regarding eye donation among health seekers attending a reputed eye care institution in North KeralaKerala J Ophthalmol2016284347
  • PriyadarshiniBSrinivasanMPadmavathiASelvamSSaradhaRNirmalanPKAwareness of eye donation in an adult population of southern India. A pilot studyIndian J Ophthalmol200351110110412701874
  • RonankiVRSheeladeviSRamachandranBPJalbertIAwareness regarding eye donation among stakeholders in Srikakulam district in South IndiaBMC Ophthalmol2014142524602240
  • SinghMMRahiMPagareDIngleGKMedical students’ perception on eye donation in DelhiIndian J Ophthalmol2007551495317189887
  • TandonRVermaKVanathiMPandeyRMVajpayeeRBFactors affecting eye donation from postmortem cases in a tertiary care hospitalCornea200423659760115256999
  • TiggaMJAgarwalPCGuptaSLevel of awareness and attitude regarding eye donation amongst nursing and paramedical staff working in tertiary care centreJ Evid Based Med201634421892193
  • TiwariRDiwakarAMarskolePBhargoLAnwarDA study to assess awareness on eye donation and willingness to pledge eyes for donation in adult population in Gwalior district (MP), IndiaJ Res Med Sci201422662666
  • VallinayagamMKumarPSKrishnamoorthyJArumugamRA study on eye donation awareness among medical and engineering students in PuducherryDehli J Ophthalmol2017282024
  • VidushaKManjunathaSAwareness of eye donation among medical students of tertiary care hospital, BangaloreAsian Pac J Health Sci2015229498
  • BhandarySKhannaRRaoKARaoLGLingamKDBinuVEye donation–awareness and willingness among attendants of patients at various clinics in Melaka, MalaysiaIndian J Ophthalmol2011591414521157071
  • BhartiMKReddySCTajunisahIAliNAAwareness and knowledge on eye donation among university studentsMed J Malaysia2009641414519852320
  • AryaSKGuptaNMalikAEye donation awareness among medical and paramedical staff in a medical instituteNepal J Ophthalmol20146217718425680248
  • JoshiSDEye donation awareness among community people in NepalTransplantation201090557 (Abstract).
  • AbadomEGOteneCIEnivwenaeAOKnowledge and willingness to donate eye among medical doctors in delta stateIOSR J Dent Med Sci20141365763
  • EzeBIOkoyeOEzeJNKnowledge and attitudes regarding eye donation and corneal transplant: medical versus nonmedical university students in a developing country in AfricaExp Clin Transplant201412545446125299373
  • OkoyeOMaduka-OkaforFCEzeBIWhat does the medical student know about eye donation/corneal transplant? The University of Nigeria scenarioWest Ind Med J20105914144
  • Waziri-EramehJMErnestAOEdemaOTKnowledge and attitude of Nigerian ophthalmologists towards cornea donation and corneal graftJ Med Biomed Res200761–22634
  • AhmadSAliMAfzalMKnowledge and attitudes toward corneal donation amongst medical students in University of Lahore (a cross-sectional study)Ophthalmology Update2018161465
  • ParvezMAAlviSMahidaKEye donation: awareness in urban population of Pakistan: an analysisAPMC2016103142146
  • BugisAAliAAlmaghrabiAKnowledge and attitudes regarding eye donation and corneal transplants in Saudi Arabia: A cross-sectional studyInt J Med Health Res20184269
  • HameedNJadidyEKnowledge and attitude regarding eye donation and corneal transplantation among medical students of Taibah University in Medina, Saudi Arabia 2015Int J Acad Sci Res2015341826
  • ParazCMTruongHTSaiDKCajucom-UyHYChanCLKassimSMKnowledge and attitudes toward corneal donation among Singaporean youth: a cross-sectional studyEye Vis20163117
  • YewYWSawSMPanJCKnowledge and beliefs on corneal donation in Singapore adultsBr J Ophthalmol200589783584015965162
  • PalamarMDurusoyREgrilmezSSalisOYagciAPublic opinion concerning corneal donation and transplant: a survey from Izmir, TurkeyExp Clin Transpl201192134138
  • WilliamsAMAllinghamRRBeckwithHSLiuPJSantiago-TurlaCMuirKWPatient and family attitudes about an eye donation registry for researchCurr Eye Res201338994595123767667
  • RanjanADasSSahuSKDonor and tissue profile of a community eye bank in Eastern IndiaIndian J Ophthalmol201462993593725370396
  • LiuYZhangYNZhangJLiAPLiangQFPanZQDemographic characteristics of voluntary donors registered in Beijing Tongren Hospital Eye Bank of China: a retrospective study from 2007 to 2016Transplant Proc20174981712171828923613
  • WilliamsAMStamerWDAllinghamRRIncreasing the availability and quality of donor eyes for researchJAMA Ophthalmol2016134435135226768017
  • CurcioCAResearch Tissue Acquisition Working GroupDeclining availability of human eye tissues for researchInvest Ophthalmol Vis Sci20064772747274916799009
  • Eye Bank Association of America2016 Eye Banking Statistical Report2017 Available from: http://restoresight.org/wp-content/uploads/2017/04/2016_Statistical_Report-Final-040717.pdfAccessed March 25, 2018
  • WilliamsAMAllinghamRRStamerWDMuirKWEye care professionals’ perspectives on eye donation and an eye donation registry for research: a single-institution, cross-sectional studyCurr Eye Res201641686787126287578
  • ZhuMSyedAJoachimNDLuoKPetsoglouCChangAAEvaluation of a direct approach to eye donation in a population with retinal diseasesInvest Ophthalmol Vis Sci20145513681
  • WilliamsAMPerkumasKMPerryISuccessful implementation of a program for increasing donor eyes for research: the Duke-Miracles in Sight ProgramJ Ocul Pharmacol Ther201632314514926982653
  • AbuksisGOrensteinSHershkoACornea recipients: are their opinions and attitudes toward organ donation different from those of the general population?Transplant Proc20043651249125215251304
  • FeeleyTHTamburlinJVincentDEAn educational intervention on organ and tissue donation for first-year medical studentsProg Transplant200818210310818615975
  • RadyMYMcGregorJLVerheijdeJLMass media campaigns and organ donation: managing conflicting messages and interestsMed Health Care and Philos201215222924122020780
  • MackRJMasonPMathersWDObstacles to donor eye procurement and their solutions at the University of IowaCornea19951432492527600807
  • ProusMPontoMBarriers to ocular tissue donation in acute clinical settingsProg Health Sci201552134141
  • HermannKCPagnussatoFFrankeCAde OliveiraMLReasons for family refusal of ocular tissue donationTransplant Proc20144661669167125131008
  • SharmaBShrivastavaUKumarKBaghelRKhanFKulkarniSEye donation awareness and conversion rate in hospital cornea retrieval programme in a tertiary hospital of central IndiaJ Clin Diagn Res2017118NC12NC15
  • PandeyNUGuptaAKJainAKKoushalVBindraNMinzCCan eye donation rates be increased in hospitals: a pilot study in a tertiary care hospital in North India?Public Health201613614114326972519
  • GogateBGogatePDeshpandeMEye donation programme through faith leadersBr J Ophthalmol200892686786818523100
  • RodrigueJRKrouseJCarrollCGieryKMFragaYEdwardsEA Department of Motor Vehicles intervention yields moderate increases in donor designation ratesProg Transplant2012221182422489439
  • HarrisonTRMorganSECorciaMJEffects of information, education, and communication training about organ donation for gatekeepers: clerks at the Department of Motor Vehicles and organ donor registriesProg Transplant200818430130919186584
  • HarrisonTRMorganSEKingAJWilliamsEASaving lives branch by branch: the effectiveness of driver licensing bureau campaigns to promote organ donor registry sign-ups to African Americans in MichiganJ Heath Commun2011168805819
  • ThorntonJDAlejandro-RodriguezMLeónJBEffect of an iPod video intervention on consent to donate organs: a randomized trialAnn Intern Med2012156748349022473435
  • CameronAMMassieABAlexanderCESocial media and organ donor registration: the Facebook effectAm J Transplant20131382059206523777475
  • KumarKKingEAMuzaaleADA smartphone app for increasing live organ donationAm J Transplant201616123548355327402293
  • FeeleyTHMoonSIA meta-analytic review of communication campaigns to promote organ donationCommun Rep20092226373
  • EssmanCCLebovitzDJDonation education for medical students: enhancing the link between physicians and procurement professionalsProg Transplant200515212412816013460