Posters

Comparison of objective accommodation in phakic and pseudophakic eyes between age groups

Poster Details

First Author: B.Chung SOUTH KOREA

Co Author(s):    S. Choi   J. Lee   E. Kim   K. Seo   T. Kim        

Abstract Details

Purpose:

To compare objective accommodation of phakic and pseudophakic eyes between age groups.

Setting:

Ophthalmology Department, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea

Methods:

Eighty-five eyes (85 participants aged ≥ 40 years) with a visual acuity of 20/25 or better, and refractive error < spherical 2.0 diopters (D) and cylindrical 1.0 D, were included. Forty-seven patients had undergone phacoemulsification and monofocal intraocular lens implantation, and were examined 6 months post-surgery. Participants were divided into Groups 1 (pseudophakic, age < 60 years), 2 (pseudophakic, ≥ 60 years), 3 (phakic, < 60 years), and 4 (phakic, ≥ 60 years). Objective accommodation and pupil diameter to 2.0-D and 3.0-D stimuli were measured with a binocular open-field autorefractor.

Results:

The mean objective accommodation was 0.28 ± 0.46 D, 0.02 ± 0.26 D, 1.00 ± 0.88 D, and 0.01 ± 0.13 D to a 2.0-D stimulus, and 0.26 ± 0.50 D, 0.03 ± 0.38 D, 1.42 ± 1.21 D, and -0.06 ± 0.21 D to a 3.0-D stimulus in Groups 1, 2, 3, and 4, respectively. For both stimuli, the values in Group 1 exceeded those in Groups 2 and 4, and were smaller than those in Group 3, while the values in Group 3 exceeded those in Groups 2 and 4.

Conclusions:

Objective accommodation in pseudophakic patients aged < 60 years is greater than that in pseudophakic and phakic patients aged ≥ 60 years, but smaller than that in phakic patients aged < 60 years.

Financial Disclosure:

None