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Corneal layers and anterior sclera in moderate to high myopia: an anterior segment optical coherence tomography study

Poster Details

First Author: G.PEKEL TURKEY

Co Author(s):    R. YAGCI   S. ACER   G. ONGUN   E. CETIN   H. SIMAVLI  

Abstract Details

Purpose:

The posterior segment alterations are well-described in axial myopia, while there is debate on anterior segment changes. In this study, our aim was to investigate the thicknesses of pre-ocular tear film, corneal layers, and anterior sclera in moderate to high myopia with anterior segment spectral domain optical coherence tomography.

Setting:

Pamukkale University, Ophthalmology Department, Denizli, Turkey

Methods:

The patients with myopia had axial length ranging from 24.0 mm to 29.0 mm; while the age-matched healthy controls had axial length 21.0 mm to 23.9 mm. Study group had refractive errors -4.00 to -11.0 diopters spherical equivalent. The thicknesses of pre-ocular tear film, central cornea, and anterior sclera were taken with the anterior segment module of spectral-domain optical coherence tomography.

Results:

There were no statistically significant differences in the thicknesses of pre-ocular tear film, corneal epithelium, Bowman layer, corneal stroma, and Descemet’s membrane-endothelium complex in the myopic patients and controls (p >0.05). The anterior scleral thickness values of 1 mm, 3 mm, and 5 mm from the limbus were similar in both the study and control groups (p >; 0.05). There were no significant correlations between central cornea stromal thickness and anterior scleral thickness for all the participants (p >0.05).

Conclusions:

Anterior wall structures and pre-ocular tear film of moderate to high myopia patients are not thin when compared with those of healthy controls. These outcomes might be helpful for surgeons while performing anterior segment surgeries in myopic patients.

Financial Disclosure:

NONE

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