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The correlation of hyperopia and choroidal thickness, vessel diameter and area
Ahmet Kaderli1, Mehmet Akif Acar2, Nurten Ünlü2
1Department of Ophthalmology, Ankara Training and Research Hospital, Aleksandr Dubcek St. 4/7 Cankaya, Ankara, Turkey. akaderli@hotmail.com.
International Ophthalmology
|April 6, 2017
Summary
In short eyes, increased hyperopia and decreased axial length thicken the macular choroid. Large choroidal vessel diameter and area also increase, offering insights into eye conditions.
Area of Science:
- Ophthalmology
- Optical Coherence Tomography
- Choroidal Imaging
Background:
- Short eyes with hyperopic refractive error present unique anatomical characteristics.
- Understanding choroidal morphology is crucial for diagnosing and managing various ocular diseases.
Purpose of the Study:
- To investigate the impact of axial length and hyperopia on macular choroidal thickness.
- To assess changes in choroidal vessel lumen diameter and area in relation to refractive error and axial length using Enhanced Depth Imaging Optical Coherence Tomography (EDI-OCT).
Main Methods:
- Sixty-four adult volunteers (44 hyperopic, 20 emmetropic) were recruited.
- Macular choroidal thickness, vessel lumen diameter, and area were measured using Spectralis® OCT with EDI technique.
Main Results:
- Macular choroid thickness significantly increased with greater hyperopic error and shorter axial length across all quadrants.
- Significant differences in large and small choroidal vessel lumen diameter and area were observed between hyperopic groups.
- A significant negative correlation was found between axial length and large choroidal vessel diameter and area, but not small vessels.
Conclusions:
- Macular choroidal thickening and increased large choroidal vessel dimensions are associated with hyperopia and shorter axial length in short eyes.
- These EDI-OCT findings may aid in developing population-specific nomograms and understanding the pathophysiology of diseases in short eyes.
