Choroidal and Retinal Thickness of Highly Myopic Eyes with Early Stage of Myopic Chorioretinopathy: Tessellation.

<italic>Purpose</italic>. To investigate the choroidal thickness (CT) and retinal thickness (RT) in highly myopic tessellated eyes. <italic>Methods</italic>. In this study, 115 highly myopic eyes were recruited and divided as tessellated fundus (n=93) and normal fundus (n=22). RT and CT were quantified using optical coherence tomography with enhanced depth imaging (EDI-OCT). Correlation between subfoveal CT (SFCT) and tessellation was analyzed using logistic regression models. <italic>Results</italic>. Tessellated fundus eyes had thinner CT than did normal fundus eyes, while RT was not statistically different across groups. The tessellated eyes had a thinner choroid than did the control eyes at all measured macular locations (all P<0.05). After adjustment for AL, age, and gender, the SFCT was significantly associated with tessellation. The odds ratio (OR) and 95% confidence interval (CI) was 0.975 (0.960–0.990, P=0.001, binary logistics regression) and 0.991 (0.984–0.999, P=0.022, Cox regression). The area under the curve (AUC) of SFCT was the greatest for detecting tessellation (AUC = 0.824, P<0.001). For sensitivity and specificity analyses, SFCT had the highest diagnostic value (sensitivity = 81.8%, specificity = 74.2%). <italic>Conclusions</italic>. Highly myopic eyes with tessellation have thinner CT than do normal highly myopic eyes. CT may serve as an early pathologic predictor of high myopia. [ABSTRACT FROM AUTHOR]