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Comparative estimation of retinal nerve fiber layer (RNFL) thickness at different degrees of myopia using time domain optical coherence tomography

Poster Details

First Author: M.Efendiyeva AZERBAIJAN

Co Author(s):    E. Qasimov              

Abstract Details



Purpose:

To evaluate and compare retinal nerve fiber layer (RNFL) thickness measurements using time domain (Stratus) optical coherence tomography (OCT) in patients with varying degrees of myopia.

Setting:

Clinical practice

Methods:

A total 89 eyes of myopia: 31 eyes of patients with low myopia, 28 eyes of patients with medium myopia and 30 eyes with high myopia have been selected for the study. Not a single patient showed a gross change of the retina in the fundus. All the subjects underwent peripapillary RNFL thickness measurements using Stratus OCT by a single trained operator. The study was carried out to compare and estimate RNFL thickness in all four quadrants and average RNFL thickness. The results were statistically processed by Student and Wilcoxon.

Results:

RNFL thickness in patients with medium myopia was more decreased than that of patients with low myopia (P?0.05) in the inferior and inferior-temporal quadrants. RNFL thickness in patients with high myopia in contrast to patients with low and medium myopia showed the marked decrease both equal in inferior and superior quadrants (P?0.001). Compared and estimated RNFL thickness in all four quadrants and average RNFL thickness in the patients with varying degrees of myopia showed more decrease from low myopia to high degree of myopia (P?0.001), specifically in the inferior and superior quadrants, and average RNFL (P?0.001).

Conclusions:

Comparing and evaluating RNFL thickness in all four quadrants and average RNFL thickness in the patients with varying degrees of myopia we have detected the authentic significant decrease in RNFL thickness particularly in the inferior, superior quadrants and average RNFL.

Financial Disclosure:

NONE

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