Volume 24, Issue 104, July - August, 2020

Changes of anterior chamber depth and volume before and after Nd: YAG Laser posterior capsulotomy

Mahmoud Reza Panahi Bazaz^♦, Gholamreza Khataminia, Mohammad Taayeed, Mohammad Sadegh Mirdehghan

Department of Ophthalmology, Ophthalmic Research Center, Imam Khomeini Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran.

^♦Corresponding author
Mahmoud Reza Panahi Bazaz, Department of Ophthalmology, Ophthalmic Research Center, Imam Khomeini Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran

ABSTRACT

One of the major barriers to achieving recovery upon cataract surgery is posterior capsule opacification (PCO). Nd: YAG Laser posterior capsulotomy, the method of choice in the treatment of PCO, can be associated with some adverse effect. The purpose of this study was to determine the relationship between intraocular lens displacements after Nd: YAG Laser posterior capsulotomy in patient with PCO. The observational study was carried out in patients referred to the eye clinic at Imam Khomeini Hospital, Ahvaz, Iran. Visual performance was assessed by visual acuity examination, sensitivity to light source prior to Nd: YAG laser posterior capsulotomy, and contrast sensitivity. Intraocular lens displacement was measured before and after procedure by anterior chamber Optical Coherence Tomography (OCT) and anterior chamber depth changes were measured using Pentacam. In the current study 50 patients including 29 male and 21 female were evaluated. The mean age of patients was 64 ranging, 40 to 88. Anterior chamber depth (ACD) decreased significantly from 4.38 (before) to 4.04 (after). Similarly, anterior chamber volume (ACV) was significantly decreased one month after Nd: YAG laser procedure. Anterior chamber angle (ACA) increased significantly from 38.05 to 42.56. Spherical equivalence (SE) before and after procedure were -0.06 and -1.05, which indicate the significant toward movement of IOL. In conclusion our study has indicated the intraocular lens displacement and its consequently refractive effects one month after Nd: YAG Laser posterior capsulotomy. We recommend future study with more sample size and longer follow up duration in addiction to evaluation of other adverse effect of procedure such of cystoid macular edema.

Keywords: Nd: YAG Laser, Posterior capsulotomy, Posterior capsule opacity

Medical Science, 2020, 24(104), 2366-2372

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