Purpose: To identify the local biometric factors associated with postoperative best-corrected visual acuity (BCVA) after surgical treatment of myopic foveoschisis by using spectral-domain optical coherence tomography.
Methods: Eleven eyes of 10 patients that underwent vitrectomy combined with internal limiting membrane peeling for treatment of myopic foveoschisis were investigated. We measured the height and lateral width of the foveal detachment, subfoveal choroidal thickness, and height of the posterior staphyloma using spectral-domain optical coherence tomography.
Results: Foveal detachments found in 8 eyes were not significantly related to postoperative BCVA. Intraclass correlation coefficients of spectral-domain optical coherence tomography measurements were substantial to nearly perfect (0.786–0.951). The postoperative BCVA 12 months after surgery was significantly correlated with age (rs = 0.616, P = 0.044), preoperative BCVA (rs = 0.833, P = 0.001), preoperative subfoveal choroidal thickness (rs = −0.661, P = 0.027), and posterior staphyloma height (rs = 0.642, P = 0.033). Neither postoperative BCVA nor changes in BCVA showed significant correlations with the axial length or height or lateral width of the foveal detachment.
Conclusion: These results at least raise the possibility that a thin choroid and likely severe posterior staphyloma before surgery can predict postoperative BCVA after vitrectomy for the treatment of myopic foveoschisis.
Athin choroid and severe posterior staphyloma may predict postoperative visual acuity after vitrectomy in the treatment of myopic foveoschisis. Measurements of the local biometric features associated with myopic fundus changes are useful in facilitating an understanding of pathological myopia.
Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Reprint requests: Masanori Hangai, MD, Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan; e-mail: firstname.lastname@example.org
Supported in part by a Grant-in-Aid for Scientific Research (20592038) from the Japan Society for the Promotion of Science, Tokyo, Japan.
M. Hangai is a paid advisory board member for NIDEK and received consulting fees from Topcon, lecture fees from Heidelberg Engineering and Santen. N. Yoshimura is a paid advisory board member for NIDEK and received lecture fees from NIDEK, Topcon, and Canon and research funding from NIDEK, Topcon, and Canon.
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