Posterior vitreous detachment after laser in situ keratomileusis among the Egyptian population

Session Details

Session Title: LASIK Outcomes and Complications

Session Date/Time: Tuesday 10/10/2017 | 16:30-18:00

Paper Time: 17:27

Venue: Room 3.1

First Author: : D.Tohamy EGYPT

Co Author(s): :    K. Soliman   H. Elsedfy   W. Ibrahim              

Abstract Details

Purpose:

To identify the possible risk factors for the development of posterior vitreous detachment post laser in situ keratomileusis (LASIK) in the Egyptian population.

Setting:

Ophthalmology department, Assiut university hospitals, and El-Nour LASIK center, Assiut, Egypt.

Methods:

Prospective interventional case series study including patients with myopic astigmatism who were deemed candidates for LASIK correction. All recruited patients underwent B-scan and A-scan ultrasonography immediately before LASIK using Sonomed. LASIK procedure was done using Allegretto device (wave light EX500, ALCON, Fort Worth, TX, USA) and Moria microkeratome (MM2). One week post LASIK, B-scan was done for all patients for detection of posterior vitreous detachment (PVD).

Results:

Sixty one eyes of 31 patients were included in our study. Mean age was 28±5.6 years (range 20-41), mean spherical equivalent (S.E) was -6.1 ± 3.2 D (Range -1.4 to -15.1), mean axial length (AL) was 23.5±1.5 mm (Range 21-26.3). PVD developed in 18 eyes (29.5%). PVD developed more in eyes of patients ≥ 30 years old (odds ratio OR = 4.1, 95% confidence interval CI, 1.2-14.1) and in those with AL ≥ 25 mm (OR = 3.5, 95% CI, 1.1-11.7). Although PVD developed more in eyes with SE ≥ -6 (55.6%) however, this didn’t reach statistical significance (p=0.7).

Conclusions:

Older age, longer eyes and higher spherical equivalent were associated with increased incidence of posterior vitreous detachment following LASIK among the Egyptian population.

Financial Disclosure:

NONE