Influence of anterior chamber depth on postoperative refractive outcome in Chinese eyes

  • Rachel SH Wong University of Sydney, Sydney, Australia http://orcid.org/0000-0001-6760-0463
  • Keith Ong Royal North Shore Hospital Department of Ophthalmology, University of Sydney, Sydney Dalcross Adventist Hospital, Sydney, Australia
DOI: https://doi.org/10.35119/asjoo.v16i2.366
Keywords: anterior chamber depth, cataract surgery, intraocular lens formula, refractive outcome, refractive surprise

Abstract

Aim or Purpose: This study aims to evaluate the refractive surprise (RS) after cataract surgery with various intraocular lens (IOL) formulas in eyes with very shallow or deep anterior chamber depth (ACD).

Design: This is a prospective cohort study of patients from a private ophthalmology practice in Sydney.

Methods: Thirty-one patients who had their cataract surgery in 2014 were included. The cohort consists of 20 eyes with ACD < 2.8 mm and 25 eyes with ACD > 3.2 mm. Patients’ demographic variables and their predicted refractive outcomes using the SRK-T, Haigis, Holladay 1, and Holladay 2 IOL formulas were collected. Actual refractive outcomes were obtained from consultations at least one-month postoperatively. RS was calculated from the difference between predicted refraction outcome of IOL formulas and the actual postoperative refraction achieved.

Results: The linear correlations between ACD and RS were not significant (p > 0.05). In the group with ACD < 2.8 mm, the mean refractive surprise using SRK-T, Haigis, Holladay 1, and Holladay 2 formulas were -0.191 ± 0.541, -0.189 ± 0.444, -0.201 ± 0.449, and -0.154 ± 0.489 D, respectively. In the group with ACD > 3.2 mm, the mean refractive surprise using the IOL formulas were -1.364 ± 0.541, -1.420 ± 0.541, 0.027 ± 0.394, and -0.045 ± 0.343 D, respectively. 

Conclusion: The positive linear correlation between ACD and RS was weak. In eyes with ACD < 2.8 mm, the least RS was found with the Holladay 2 formula, while in eyes with ACD > 3.2 mm, this was found with Holladay 1.

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Published
2018-11-21
How to Cite
Wong, R., & Ong, K. (2018). Influence of anterior chamber depth on postoperative refractive outcome in Chinese eyes. Asian Journal of Ophthalmology, 16(2), 79-85. https://doi.org/10.35119/asjoo.v16i2.366
Issue
Vol 16 No 2 (2018): Asian Journal of Ophthalmology
Section
Original Articles

Copyright (c) 2018 Asian Journal of Ophthalmology

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