A review of results after implantation of a secondary intraocular lens to correct residual refractive error after cataract surgery

Figures & data

Figure 1 Design (A) and sulcus location (B) of the AddOn^® secondary IOL.

Notes: (A) AddOn IOL, toric marks visible. Haptics are designed for rotational stability in the sulcus. (B) Convex-concave optic design avoids IOL touch, reduces potential for iris chafing. Courtesy 1stQ GmbH, used with permission.
Abbreviation: IOL, intraocular lens.

Table 1 Preoperative summary

	n	Details	Notes
Cataract/refractive lens exchange	45	20/25	1 case referred, unknown
Age at original surgery (years)	46	57.1±8.7 (43 to 75)
Axial length	46	23.59±1.93 (20.26 to 29.06)
Time between surgeries (months)	46	17.3±19.2 (3 to 88)	Median 9 months
Spherical/toric secondary lens	46	36/10	All monofocal
Myopic/hyperopic secondary lens	46	19/25	2 astigmatism-only
Original implant lens types
Extended depth of focus	21
Trifocal	13
Bifocal	9
Other	3
Secondary lens sphere power (D)		−0.27±1.11 (−2.5 to 1.5)

Note: Data presented as mean ± standard deviation (range).

Abbreviation: n, number of eyes.

Figure 2 UCVA and BCVA before and after secondary IOL implantation.

Abbreviations: IOL, intraocular lens; Preop, preoperative; UCVA, uncorrected visual acuity; BCVA, best-corrected visual acuity.

Figure 3 Spherical equivalent refraction before and after secondary IOL implantation.

Abbreviation: IOL, intraocular lens.