Acta Med. 1997, 40: 47-49

Visual Functions After Photorefractive Keratectomy

Hana Langrová, Dagmar Hejcmanová, Jaroslav Peregrin

Department of Ophthalmology, Charles University, Faculty of Medicine, Hradec Králové, Czech Republic

Received May 1, 1997
Accepted June 1, 1997

1. 45 myopes (-3.0 to -6.0 D) were examined before and 1 and 6 months after photorefractive keratectomy (PRK). Visual acuity (VA) was tested using Snellen and logMAR charts. Contrast sensitivity (CS) was measured using a computerized system. 2. Preoperative best corrected VA (BCVA) in myopes was significantly lower in comparison with a control group using logMAR charts only. A reduction of BCVA by both methods at 1. month and its return after 6 months nearly to original values was noted. 3. Significantly lower values of CS were found in patients before PRK compared to the control group. After 1 and 6 months stayed the values on preoperative level.


This work was supported by the Grant Agency of Charles University (Grant No 59/97).


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