Abstract
Objective To evaluate the changes in binocular vision after phakic posterior chamber implantable collamer lens (PPC-ICL) implantation for high myopia. Methods This self-control study included 84 eyes of 42 patients with high myopia who underwent PPC-ICL implantation surgery. Simultaneous perception, fusion range, and distance and near stereopsis were tested before and 6 months after surgery with a synoptophore and stereogram designed by Yan Shaoming. Results There was no significant difference in simultaneous perception before surgery compared to 6 months after surgery, while the differences in fusion range and distance stereopsis were statistically significant (χ2=0.357, P<0.01 and χ2=0.276, P<0.05). There were no significant differences in foveal stereopsis and peripheral stereopsis before surgery compared to 6 months after surgery, but there was a significant difference in stereo blindness (χ2=0.279, P<0.05). Conclusion Simultaneous perception, fusion range, and distance and near stereopsis after PPC-ICL implantation obviously improved compared to measurements taken before surgery. Key words: Phakic intraocular lenses; Myopia, degeneration; Simultaneous perception; Fusion; Stereopsis
Published Version
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