The effects of rigid gas permeable contact lenses for pediatric aphakia

Objective To investigate the effect of the rigid gas permeable contact lenses (RGP)for pediatric aphakia. Methods Ten eyes of 5 patients with cataract aphakia who were fitted into RGP for aggressive visual rehabilitation. The RGP lenses parameters such as basic curve (BC), power,and diameter were evaluated. Complications, correct visual acuity, and the number of lenses during the period of follow-up were observed. Results All patients could wear RGP lenses normally. The average BC of lenses was 7.6, power was +24.S D, and diameter was 8.6. The nystagmus amplitude were 11.0±4.2 degree and 6.5±3.4 degree before and after wearing RGP lenses (t =9.0, P ＜0.05). The nystagmus frequency were 29.0±9.6 and 19.6±2.9 before and after wearing RGP lenses (r =23.5, P ＜0.05). The average changing lenses cycle was 6 months. No complications occurred during the follow-up periods. Conclusions The RGP lenses are safe and effective to pediatric aphakia. Key words: Pediatric;  Cataract;  Rigid gas permeable contact lenses;  Aphakia