PURPOSE: To investigate anterior chamber depth (ACD), lens thickness (LT), vitreous body length (VBL), and axial length (AL) in African American females with long anterior zonules (LAZ) while controlling for refractive error. METHODS: The eyes of 50 African American females with LAZ were compared with 50 controls matched with age, race, sex, and refractive error. Central ACD, LT, VBL, and AL measurements were obtained in a masked manner using a-scan ultrasonography. RESULTS: LAZ cases had a mean age±SD of 67.1±7.6 years (range, 52 to 85 y) and a mean refractive error of +1.85±1.41 D (-1.75 to +4.75 D). Parameters were similar for controls. Mean ACD for cases was 2.45±0.34 mm and 2.57±0.38 mm for controls. Mean LT for cases was 4.94±0.43 mm and 4.83±0.45 mm for controls. Mean VBL for cases was 15.00±0.72 mm and 15.17±0.76 mm for controls. Mean AL for cases was 22.39±0.82 mm and 22.57±0.76 mm for controls. Using multiple logistic regression to control for any residual differences in age and refractive error, no significant differences were present between LAZ eyes and control eyes relative to the a-scan variables (P>0.1). CONCLUSIONS: When refractive error was controlled for, this group of African American females with LAZ did not exhibit clinically significant differences in ACD, LT, VBL, and AL as compared with controls.
PURPOSE: To investigate anterior chamber depth (ACD), lens thickness (LT), vitreous body length (VBL), and axial length (AL) in African American females with long anterior zonules (LAZ) while controlling for refractive error. METHODS: The eyes of 50 African American females with LAZ were compared with 50 controls matched with age, race, sex, and refractive error. Central ACD, LT, VBL, and AL measurements were obtained in a masked manner using a-scan ultrasonography. RESULTS: LAZ cases had a mean age±SD of 67.1±7.6 years (range, 52 to 85 y) and a mean refractive error of +1.85±1.41 D (-1.75 to +4.75 D). Parameters were similar for controls. Mean ACD for cases was 2.45±0.34 mm and 2.57±0.38 mm for controls. Mean LT for cases was 4.94±0.43 mm and 4.83±0.45 mm for controls. Mean VBL for cases was 15.00±0.72 mm and 15.17±0.76 mm for controls. Mean AL for cases was 22.39±0.82 mm and 22.57±0.76 mm for controls. Using multiple logistic regression to control for any residual differences in age and refractive error, no significant differences were present between LAZ eyes and control eyes relative to the a-scan variables (P>0.1). CONCLUSIONS: When refractive error was controlled for, this group of African American females with LAZ did not exhibit clinically significant differences in ACD, LT, VBL, and AL as compared with controls.
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