Implantable collamer lens (ICL) is one of the most effective operation for high myopia. Due to refractive correction changed, and prism effect of the spectacle removed, in the early stage after ICL implantation, binocular function might be dysfunction, leading to asthenopia, blurred vision, double vision and so on. This study will recruit the high myopia subjects that scheduled for ICL implantation, purpose to investigate the binocular vision alternations and brain activation that impacted by ICL implantation.
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Changes of phoria at different time points
Timeframe: The examination was performed before operation and 1 week, 1 month, 3 monthes, 6 monthes after ICL implantation.
Changes of AC/A at different time points
Timeframe: The examination was performed before operation and 1 week, 1 month, 3 monthes, 6 monthes after ICL implantation.
Changes of fusion vergence at different time points
Timeframe: The examination was performed before operation and 1 week, 1 month, 3 monthes, 6 monthes after ICL implantation.
Changes of accommodative response at different time points
Timeframe: The examination was performed before operation and 1 week, 1 month, 3 monthes, 6 monthes after ICL implantation.
Changes of relative accommodation at different time points
Timeframe: The examination was performed before operation and 1 week, 1 month, 3 monthes, 6 monthes after ICL implantation.
Changes of near point of convergence at different time points
Timeframe: The examination was performed before operation and 1 week, 1 month, 3 monthes, 6 monthes after ICL implantation.
Changes of accommodation amplitude at different time points
Timeframe: The examination was performed before operation and 1 week, 1 month, 3 monthes, 6 monthes after ICL implantation.
Changes of vergence facility at different time points
Timeframe: The examination was performed before operation and 1 week, 1 month, 3 monthes, 6 monthes after ICL implantation.
Changes of accommodative facility at different time points
Timeframe: The examination was performed before operation and 1 week, 1 month, 3 monthes, 6 monthes after ICL implantation.