Temporal vascular arcade width and angle in high axial myopia

Purpose: Axial myopia is associated with elongation of the posterior ocular segment. The authors measured posterior fundus landmarks and assessed their associations with axial length. Methods: Using fundus photographs, the authors measured the vertical distance between the temporal superior and temporal inferior arterial arcade (VDA) and the angle kappa between the temporal arterial arcades among other morphometric variables. Results: The study included 456 eyes with a mean age of 61.2 ± 14.2 years (range: 13–88 years) and mean axial length of 29.4 ± 2.1 mm (range: 23.2–35.3 mm). Mean angle kappa was 91.3 ± 17.2° (range: 39–161°), and mean VDA was 7.93 ± 1.71 mm (range: 2.72–12.85 mm). In multivariate regression analysis, wider angle kappa was associated (regression coefficient r: 0.47) with shorter axial length (P = 0.002; beta: −0.17; B: −1.37; 95% confidence interval [CI]:−2.23 to −0.51), longer VDA (P
Source: RETINA - Category: Opthalmology Tags: Original Study Source Type: research