1. 86 myopes undergoing photorefractive keratectomy (PRK) with refraction from -0.25 D to -12.00 D were divided into 4 groups: A: up to -2.75 D, B: -3.00 D to -5.75 D, C: -6.00 D to -8.75 D and D: -9.00 D to -12.00 D. 20 emmetropes of the same median age were evaluated as a control group. The patients were examined 2 years after PRK. 2. Best corrected visual acuity (BCVA) increased in groups A, C, D and decreased in group B compared to values one year after PRK. Both changes were only nonsignificant. 3. Contrast sensitivity (CS) was equal to values one year after PRK in group A, the same was true for groups C and D with exception of lower values in the highest spatial frequency. In group B, CS decreased significantly compared to values one year after PRK. 4. In groups A, B a C number of patients without rest correction increased, regression was seen only in group B. 5. BCVA changed only nonsignificantly under glare of 41.1 cd/m2, 342.6 cd/m2 and 1360.4 cd/m2 in 97% of patients.

• MeSH
• citlivost na kontrast MeSH
• dospělí MeSH
• fotorefrakční keratektomie * MeSH
• lasery excimerové MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• myopie patofyziologie   chirurgie   MeSH
• následné studie MeSH
• zraková ostrost * MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• anglický abstrakt MeSH
• časopisecké články MeSH