Glare Disability in Patients with Hydrophilic and Hydrophobic Acrylic Intraocular Lens Implants

Abstract

Purpose

To compare glare disability test results in patients with hydrophilic and hydrophobic acrylic intraocular lenses (IOL).

METHODS

Sixty eyes of 60 patients were studied in three groups of 20. Each eye in Group 1 had a single-piece hydrophilic acrylic (Bioacryl, Biotech, France) IOL implant, and each eye in Group 2 had a three-piece hydrophobic acrylic (AcrySof, Alcon, USA) IOL implant. Group 3 was the control group, and consisted of eyes without cataracts. Glare disability was tested using the Ophthimus glare sensitivity test (Ophthimus, Sweden). For each eye, we determined log contrast sensitivity values without exposure to glare source and with exposure to glare source. The difference between these values was recorded as the threshold contrast increase. An infrared camera was used to measure pupil diameter during glare disability testing, and pupil diameter greater than 4 mm was used as an exclusion criterion to eliminate edge design as a potential contributor to glare disability.

Results

The respective mean log contrast sensitivity scores for Groups 1, 2, and 3 in the absence of the glare source were 0.80±0.03, 0.81±0.04, and 0.79±0.08. The corresponding findings with glare source were 0.84±0.07, 0.89±0.07, and 0.84±0.03. The threshold contrast increase in Group 2 (0.070±0.035) was significantly higher than that in both Group 1 (0.043±0.040) and the control group (0.045±0.026) (p<0.05 for both comparisons). There were no significant differences between Group 1 and the control group regarding log contrast sensitivity values with glare source and threshold contrast increase (p>0.05 for both comparisons).

CONCLUSIONS

The eyes with hydrophilic acrylic IOL showed better glare disability results than those with hydrophobic acrylic IOL. The superior performance of the hydrophilic acrylic IOL could be related to their lower refractive index and equi-convex design.

Keywords

Acrylic Glare disability Hydrophobic Hydrophilic Intraocular lens

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References

American Academy of Ophthalmology.

Contrast sensitivity and glare testing in the evaluation of anterior segment disease.

Ophthalmology 1990; 97: 1233–7.

Nadler

D.J.

, Jaffe

N.S.

, Clayman

H.M.

, Jaffe

M.S.

, Luscombe

S.M.

. Glare disability in eyes with intraocular lenses. Am J Ophthalmol 1984; 97: 43–7.

Niesen

, Businger

, Hartman

, Senn

, Schipper

. Glare sensitivity and visual acuity after excimer laser photo refractive keratectomy for myopia. Br J Ophthalmol 1997; 81: 136–40.

Superstein

, Boyaner

, Overbury

, Colin

. Glare disability and contrast sensitivity before and after cataract surgery. J Cataract Refract Surg 1997; 23: 248–53.

Adamson

I.A.

, Vitale

, Stark

W.J.

, Rubin

G.S.

. The association of postoperative subjective visual function with acuity, glare and contrast sensitivity in patients with early cataract. Arch Ophthalmol 1996; 114: 529–36.

Rubin

G.S.

, Adamson

I.A.

, Stark

W.J.

. Comparison of acuity, contrast sensitivity and disability glare before and after cataract surgery. Arch Ophthalmol 1993; 111: 56–61.

Mamalis

. Explantation of intraocular lenses. Curr Opin Ophthalmol 2000; 11: 289–95.

Erie

J.C.

, Bandhauer

M.H.

, McLaren

J.W.

. Analysis of postoperative glare and intraocular lens design. J Cataract Refract Surg 2001; 27: 614–21.

Ellis

M.F.

. Sharp-edged intraocular lens design as a cause of permanent glare. J Cataract Refract Surg 2001; 27: 1061–4.

10.

Holladay

J.T.

, Lang

, Portney

. Analysis of edge glare phenomena in intraocular lens edge designs. J Cataract Refract Surg 1999; 25: 748–52.

11.

Masket

. Truncated edge design, dysphotopsia, and inhibition of posterior capsule opacification. J Cataract Refract Surg 2000; 26: 145–7.

12.

Hollick

E.J.

, Spalton

D.J.

, Ursell

P.G.

The effect of polymethylmethacrylate, silicone, and polyacrylic intraocular lenses on posterior capsular opacification 3 years after cataract surgery.

Ophthalmology 1999; 106: 49–54.

13.

Masket

. Managing endophtalmitis. J Cataract Refract Surg 1997; 23: 814–5.

14.

Mamalis

. Hydrophilic acrylic intraocular lenses. J Cataract Refract Surg 2001; 27: 1339–40.

15.

Apple

D.J.

, Werner

. Complications of cataract and refractive surgery: clinicopathological documentation. Trans Am Ophthalmol Soc 2001; 99: 95–107.

16.

Frohn

, Dick

H.B.

, Augustin

A.J.

, Grus

F.H.

. Late opacification of the foldable hydrophilic acrylic lens SC60B-OUV. Ophthalmology 2001; 108: 1999–2004.

17.

Schmidbauer

J.M.

, Werner

, Apple

D.J.

Postoperative opacification of posterior chamber intraocular lenses: a review.

Klin Monatsbl Augenheilkd 2001; 218: 586–94.

18.

Werner

, Apple

D.J.

, Kaskaloglu

, Pandey

S.K.

. Dense opacification of the optical component of a hydrophilic acrylic intraocular lens: a clinicopathological analysis of 9 explanted lenses. J Cataract Refract Surg 2001; 27: 1485–92.