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Purpose: To investigate the characteristics of macular outward scleral height (MOSH) in different grades of myopic tractional maculopathy (MTM) and explore the risk factors for MTM. Methods: A total of 188 eyes (188 participants) with high myopia were divided into the no MTM (nMTM) group and the MTM group, which was further graded into foveoschisis, foveal detachment, full-thickness macular hole, and macular hole with retinal detachment. Swept-source optical coherence tomography was used to measure the MOSH. Results: No significant differences were found in axial length between the nMTM and MTM groups (p = 0.295). The MOSH was significantly higher in the MTM group (p &lt; 0.001), which was identified as a risk factor for MTM (OR = 1.108, p &lt; 0.001). The proportion of eyes with severe atrophic myopic maculopathy (AMM) was higher in the MTM group (28.48%) (p = 0.003). The macular hole with foveoschisis (MH/FS+) subgroup presented a higher average MOSH (p = 0.012) and more severe AMM (p = 0.009) than the macular hole without foveoschisis (MH/FS−) subgroup. Conclusion: MOSH would be more suitable for estimating MTM occurrence than axial length. The grading of AMM helps to evaluate the severity of MTM. The categorization of MH/FS− as a distinct grade from MH/FS+ might be preferable.

Association between Different Grades of Myopic Tractional Maculopathy and OCT-Based Macular Scleral Deformation