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Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
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Retinal Artery Angles in High Axial Myopia and Its Relationship With Visual Function.
Jia Liang1, Ting Xie1,2, Lu Chen1
1Shenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, Guangdong, China.
Translational Vision Science & Technology
|August 29, 2023
Summary
In high axial myopia, smaller Yugami correlated angles (YCAs) correlate with longer axial length, reduced visual acuity, and poorer fixation. These retinal artery angles may help predict visual function in myopia.
Area of Science:
- Ophthalmology
- Medical Imaging
- Retinal Vascular Diseases
Background:
- High axial myopia is associated with significant ocular changes.
- Understanding retinal vascular alterations is crucial for managing myopia-related complications.
Purpose of the Study:
- To evaluate retinal artery angles in high axial myopia.
- To assess the correlation between retinal artery angles and morphometric/functional parameters.
Main Methods:
- Cross-sectional study of 112 eyes with high axial myopia, categorized by axial length.
- Scanning laser ophthalmoscopy for Yugami correlated angle (YCA) analysis.
- Microperimetry for fixation behavior and retinal sensitivity assessment; evaluation of retinal vascular densities (VDs).
Main Results:
- YCAs significantly differed across axial length groups, decreasing with longer axial length.
- Smaller YCAs correlated positively with longer axial length (AL) and lower retinal vascular densities (VDs) in superficial capillary plexuses (SCPs).
- Reduced YCAs were associated with decreased best-corrected visual acuity (BCVA) and mean sensitivity (MS).
Conclusions:
- Smaller Yugami correlated angles are linked to increased axial elongation, reduced vascular density, poorer visual acuity, and impaired fixation in high axial myopia.
- YCAs may indicate vascular deformation due to axial elongation and serve as a predictive marker for visual function.
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