Peripheral spatial contrast sensitivity of the eyes

AIM: To develop a method for evaluating peripheral spatial contrast sensitivity and to use it in comparative studies of children with myopia under correction conditions glasses highly aspherical lenslet (HAL) single vision lenses (SVL).
 MATERIAL AND METHODS: A was developed, which visual control carried out the patients gaze fixed forward direction using remote binocular autorefractometer, test image sent selected area retina periphery. The SVL values were evaluated three ranges frequencies, namely, low (0.52.0 cycle/deg), medium (4.0 8.0 high (11.3116.0 cycle/deg). Peripheral examined descriptively 20 moderate myopia. age ranged from 8 13 (average, 11.41.5) years, degree 1.0 3.75 2.661.5 D). HAL trial frame correction.
 RESULTS. In HAL, induces volumetric myopic defocus on periphery retina, lower than that SVL. This decrease most pronounced at where reached 3050%. revealed differences frequencies (8; 11.31 16 cycles/deg) statistically significant: 7.5 10.8 frequency cycles/deg, 5.8 9.05 4.4 9.2 respectively.
 CONCLUSION: rings compared SVL, is significantly reduced frequencies.