Objective To investigate the effect of phakic posterior chamber implantable collamer lens (PPC-ICL) implantation surgery on the accommodative status of eyes with high myopia. Methods The study included 30 eyes of 30 22-30 years old patients with high myopia. All patients underwent PPC-ICL surgery in the West China Hospital of Sichuan University. Monocular accommodative amplitude, positive and negative relative accommodation and accommodative facility were investigated before surgery and 1 month and 3 months after the surgery. The results were analyzed by repeat measured ANOVA. Results Monocular accommodative amplitude had increased 3 months after surgery (F=57.909, P<0.05). Accommodative facility had also increased 3 months after surgery (F=18.663, P<0.05). However, there were no differences in positive and negative relative accommodation at the three time points. Conclusion PPC-ICL implantation surgery does not cause adverse effects on accommodative function. After PPC-ICL implantation surgery, accommodative amplitudes and accommodative facility increase. But there is no significant effect on positive and negative relative accommodation.
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