Qi Zhang, Xiujuan Zhao, Xia Huang, Qingxiu Wu, Shida Chen, Yonghao Li, Ping Lian, Lin Lu
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METAVISION: a novel system for quantifying metamorphopsia in patients with myopic traction maculopathy.
Purpose: To develop a novel system for quantifying metamorphopsia in patients with myopic traction maculopathy (MTM) and to explore the metamorphopsia pattern of MTM.
Design: Observational, cross-sectional study.
Methods: We designed a new system.
Results: Of the 445 eyes tested, 188 (42.25%) were deemed by patients to have metamorphopsia impacting their daily lives while 257 (57.75%) were considered to have no metamorphopsia symptoms. The Amsler grid, M-CHARTS and METAVISION tests displayed sensitivities for metamorphopsia of 95.74%, 89.89% and 100%, respectively. The specificities of the Amsler grid, M-CHARTS and METAVISION tests are 100%. The metamorphopsia questionnaire and METAVISION scores were highly consistent (average intraclass correlation coefficient=0.951, p<0.001) and strongly correlated (R=0.879, p<0.001). The METAVISION score was highly correlated with the stages of MTM (R=0.837, p<0.001), whereas there was a moderate correlation between the M-CHARTS M-score and the stages of MTM (R=0.679, p<0.001).
Conclusions: Quantification of metamorphopsia is important and useful for MTM management. The METAVISION is a clinically applicable and comprehensive approach for quantifying metamorphopsia, which can be used in clinical settings.
期刊介绍：
The British Journal of Ophthalmology (BJO) is an international peer-reviewed journal for ophthalmologists and visual science specialists. BJO publishes clinical investigations, clinical observations, and clinically relevant laboratory investigations related to ophthalmology. It also provides major reviews and also publishes manuscripts covering regional issues in a global context.
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