Purpose: To investigate the relationship between dome-shaped maculas (DSMs) and posteriorstaphylomas in highly myopic eyes.
Methods: Five hundred and eleven eyes of 291 patients with high myopia (refractive error ≤−8.0diopters or axial length ≥26.5 mm) were examined by ultra-widefield swept-source optical coherencetomography (UWF-OCT). Posterior staphylomas were identified by detecting the staphyloma edges inthe UWF-OCT images.
Results: Eighty-two eyes of the 511 highly myopic eyes had a DSM, and a posterior staphyloma wasobserved in 45 of 82 eyes with a DSM (54.9%) and in 301 of 429 eyes (70.2%) without a DSM. Theincidence of staphylomas was significantly lower in eyes with a DSM than those without a DSM (P =0.007). The wide macular type of staphyloma was the predominant type in eyes with a DSM (31/45eyes; 68.9%), whereas the narrow macular type and wide macular type of staphylomas were presentalmost equally in the eyes without a DSM.
Conclusion: The lack of staphylomas in 45% of eyes with a DSM suggests that DSMs formindependently from posterior staphylomas. Dome-shaped maculas tend to occur in eyes with a largeexpansion of the posterior fundus and should be considered a posterior scleral curvature abnormality.
Saito R, Shinohara K, Tanaka N, Takahashi H, Yoshida T, Ohno-Matsui K. ASSOCIATIONBETWEEN DOME-SHAPED MACULA AND POSTERIOR STAPHYLOMA IN HIGHLYMYOPIC EYES INVESTIGATED BY ULTRA-WIDEFIELD OPTICAL COHERENCETOMOGRAPHY. Retina 2021;41(3):646-652.