Involvement of neural adaptation in the recovery of vision after laser refractive surgery
作者： Konrad Pesudovs
DOI: 10.3928/1081-597X-20050301-08
关键词: Refractive surgery 、 Neural adaptation 、 Keratomileusis 、 Photorefractive keratectomy 、 LASIK 、 Visual acuity 、 Refractive error 、 Practice effect 、 Medicine 、 Ophthalmology
摘要: PURPOSE: To investigate whether the gradual improvement in unaided visual acuity commonly seen after laser refractive surgery is attributable, part, to neural adaptation blur. METHODS: Unaided logMAR was measured at presentation (blur adapted) and immediately refraction removal of correction (correction 26 patients with low myopic residual error situ keratomileusis (LASIK). The difference adapted--blur indicates a dominance practice effect (if negative) or blur positive). A combination possible. RESULTS: Overall, mean 0.16+/-0.16 (mean+/-standard deviation) logMAR, 0.14+/-0.14 giving -0.02+/-0.06 logMAR. This not significant (analysis variance [ANOVA] F1,25=0.204, P>.05), suggesting neither nor effect. However, during first 10 weeks surgery, -0.07+/-0.05 After weeks, +0.02+/-0.05 any offset by adaptation. These values were significantly different (ANOVA F1,25= 13.53, P<.01). CONCLUSIONS: data suggest that do adapt surgically induced blur, on average, until LASIK. reason for this delay uncertain; perhaps instability hinders early postoperative period. Part LASIK appears be due
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