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Comparison of the Retinal and Choroidal Structures in 3 Refractive Groups
Gozde Aksoy Aydemir1, Alper Halil Bayat2, Emre Aydemir1
1Department of Ophthalmology, Adıyaman University Training and Research Hospital, Adıyaman, Turkey.
Beyoglu Eye Journal
|January 10, 2022
Summary
Myopic patients exhibit reduced retinal nerve fiber layer (RNFL) thickness and choroidal thickness (CT) compared to emmetropic and hyperopic individuals. Hyperopic patients, conversely, show increased CT.
Area of Science:
- Ophthalmology
- Retinal Imaging
- Refractive Error Research
Background:
- Refractive errors significantly impact ocular structures.
- Understanding variations in retinal and choroidal layers is crucial for diagnosing eye conditions.
Purpose of the Study:
- To compare retinal layer thickness, choroidal thickness (CT), and retinal nerve fiber layer (RNFL) parameters across myopic, emmetropic, and hyperopic subjects.
- To investigate the relationship between refractive status and these ocular parameters.
Main Methods:
- A prospective study involving 201 eyes from 201 subjects categorized into three refractive groups: myopic, emmetropic, and hyperopic.
- Optical coherence tomography (OCT) was utilized to measure retinal layer thickness, CT, and RNFL parameters.
- Statistical analysis was performed to compare measurements between the groups.
Main Results:
- Myopic patients demonstrated significantly lower RNFL and macular thickness compared to emmetropic and hyperopic groups.
- Choroidal thickness (CT) was found to be lower in myopic eyes and higher in hyperopic eyes relative to emmetropic eyes.
- No significant differences in age or sex distribution were observed between the refractive groups.
Conclusions:
- Myopia is associated with reduced RNFL and CT.
- Hyperopia is linked to increased CT.
- These findings highlight refractive status as a key determinant of specific ocular layer thicknesses.
