J Korean Ophthalmol Soc.  2014 Jun;55(6):833-839.

A Study of Foveal Shape in Emmetropia and Myopia Using Spectral Domain Optical Coherence Tomography

• Kim MS
• Kim JS
• Choi J
• Kim JH
• Oh WH

Abstract

PURPOSE
To investigate the shape of normal fovea in Korean subjects in their 20's using spectral domain optical coherence tomography (SD-OCT).
METHODS
One hundred-twelve emmetropic eyes of 60 subjects and 100 myopic eyes of 58 subjects between 20 and 29 years of age were included in this study. Central foveal thickness (CFT), regional maximal retinal thickness (MRT), pit diameter, pit depth, and slope were obtained using Spectralis OCT and analyzed according to spherical equivalent and gender.
RESULTS
In emmetropic and myopic eyes, MRT was significantly thinner temporally (p < 0.001) than in other regions and pit diameter was wider horizontally than vertically (p < 0.001). The CFT was significantly thicker and all regional MRT was thinner in myopic eyes than in emmetropic eyes (p < 0.001). Foveal pits were narrower and shallower in myopic eyes (p < 0.001). In both groups, CFT and all regional MRT in males were significantly thicker than in females (p < 0.05); however, no difference between the genders in horizontal pit diameter, pit depth, and slope were found.
CONCLUSIONS
In normal subjects, statistically significant differences were found in foveal shapes between subjects with different spherical equivalent and gender. These differences should be considered when interpreting a foveal shape. Knowledge of the normal foveal morphology is important when conducting further macular studies.

Keyword

Macular thickness; Myopia; Pit morphology; Spectral-domain OCT

MeSH Terms

Emmetropia*
Female
Humans
Male
Myopia*
Retinaldehyde
Tomography, Optical Coherence*
Retinaldehyde

Figure

• 

  Figure 1. Illustration of the measured parameters. CFT = cen-tral foveal thickness; MRT = maximal retinal thickness.

Reference

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