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Research Article

Non-linearity of the Response Accommodative Convergence to Accommodation Ratio

, BMedSci(Hons)(Orthoptics) & , MSc, DBO(T)
Pages 175-182 | Received 07 Nov 2012, Accepted 07 Feb 2013, Published online: 26 Aug 2013

References

  • Abbott ML, Schmid KL, Strang NC. Differences in the accommodation stimulus response curves of adult myopes and emmetropes. Ophthal Physiol Opt 2002;18:13–20
  • Bhoola H, Bruce AS, Atchison DA. Validity of clinical measures of the AC/A ratio. Clin Exp Optom 1995;78:3–10
  • Gratton LC, Firth AY. Stimulus and response AC/A ratios in an orthoptic student population. Br Ir Orthopt J 2010;7:41–44
  • Escalante JB, Rosenfield M. Effect of heterophoria measurement technique on the clinical accommodative convergence to accommodation ratio. Optometry 2006;77:229–234
  • Anderson HA, Hentz G, Glasser A, et al. Minus-lens-stimulated accommodative amplitude decreases sigmoidally with age: a study of objectively measured accommodative amplitudes from age 3. Invest Ophthalmol Vis Sci 2008;49:2919–2926
  • Firth AY, Leach CM, Griffiths HJ, Rennie IG. Patterns of nonlinearity in the ratio of stimulus accommodative convergence to accommodation. Middle East J Ophthalmol 1996;4:123–127
  • Flom MC. On the relationship between accommodation and accommodative convergence. Part I Linearity Am J Optom Arch Am Acad Optom 1960;37:474–482
  • Horwood AM, Turner JE, Houston SM, Riddell PM. Variations in accommodation and convergence responses in a minimally controlled photorefractive setting. Optom Vis Sci 2001;78:791–804
  • Manas L, Shulman P. The variation in the accommodative-convergence accommodation (ACA) ratio upon periodic retesting. Am J Optom Arch Am Acad Optom 1954;31:385–396
  • Rainey BB, Goss DA, Kidwell M, Feng B. Reliability of the response AC/A ratio determined using nearpoint autorefraction and simultaneous heterophoria measurement. Clin Exp Optom 1998;81:185–192
  • Manas L. The inconstancy of the ACA ratio. Am J Optom Arch Am Acad Optom 1995;32:304–315
  • Stein H, Hofstetter HW. Effects of prolonged television viewing on certain optometric findings. Am J Optom Arch Am Acad Optom 1951;28:520–533
  • Gwiazda J, Grice K, Thorn F. Response AC/A ratios are elevated in myopic children. Ophthalmic Physiol Opt 1999;19:173–179
  • Mutti DO, Jones LA, Melvin LM, Zadnik K. AC/A ratio, age, and refraction error in Children. Invest Ophthalmol Vis Sci 2000;41:2469–2478
  • Chen JC, Schmid KL, Brown B, et al. AC/A ratios in myopic and emmetropic Hong Kong children and the effect of timolol. Clin Exp Optom 2003;86:323–330
  • Anderson HA, Glasser A, Stuebing KK, Manny RE. Minus lens stimulated accommodative lag as a function of age. Optom Vis Sci 2009;86:685–694
  • Johnson CA. Effects of luminance and stimulus distance on accommodation and visual resolution. J Opt Soc Am 1976;66:138–142

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