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Correlations between magnitude of refractive error and other optical components in Korean myopes
Sangkyu Lee1, Boyun Kim, Tae-Hoon Oh
1Department of Ophthalmology, St. Mary's Hospital, The Catholic University of Korea School of Medicine, Seoul, Korea.
Purpose:
We evaluated ocular optical components and their interrelationships in myopic Korean patients.
Methods:
In this prospective observational study, 1,011 consecutive patients were recruited from a refractive surgery clinic. The best-corrected visual acuity was >20 / 20 in all patients. The refractive error, axial length (AL), anterior chamber depth (ACD), lens thickness (LT), and vitreous chamber depth (VCD) were measured by an autorefractor and partial coherence laser interferometry (IOL Master). Central corneal thickness (CCT) was measured by ORBscan II topography.
Results:
The refractive errors had a positive correlation with LT but negative correlations with AL, ACD, VCD, and CCT. As the axial length increased, the ACD, VCD, and CCT increased but the LT decreased. The CCT had a positive correlation with gender, refractive errors, ACD, VCD, and AL but no correlation with age. The mean CCT was increased in proportion to the increase in AL.
Conclusions:
In myopic Korean patients, as axial elongation progressed, the VCD and ACD deepened and the CCT thickened but the LT decreased. The CCT had a positive correlation with the degree of myopia and the AL.
