Avtor/Urednik     Urbančič, Mojca
Naslov     Ocena izpadov v centralnem vidnem polju z uporabo hitrih testnih strategij pri računalniško podprti statični perimetriji
Tip     monografija
Kraj izdaje     Ljubljana
Založnik     Medicinska fakulteta
Leto izdaje     2002
Obseg     str. 53
Jezik     slo
Abstrakt     Backgrounds: Central field defects are of great importance for functional capability of the affected person. Perimetry is an important method for evaluation of visual field in everyday clinical practice. There are several different test strategies for assessing differential light sensitivity threshold in computer assisted static perimetry. Normal strategy is standard strategy, which is most often used. The examination time with normal strategy is quite long and because of that new strategies have been developed in an attempt to fmd the optimal strategy. Fast strategies, dynamic and TOP (tendency oriented perimetry), are new strategies, which reduce examination time by using special algorithm for assessing differential light sensitivity threshold. Purpose: The purpose of our study was to compare and evaluate the accuracy of normal threshold strategy, dynamic strategy and TOP strategy by testing the central visual field using programme Octopus M2, which has the greatest concentration of test points (81 test points in the central 10 degree area). A similar comparative study with programme Octopus M2 has not been done yet. Subjects and methods: 30 normal eyes and 30 eyes with central visual field defects of varying degrees and etiology were tested. The testing was performed with Octopus 101 perimeter in standard conditions. The programme M2 was used. Each eye was tested three times - once with normal, once with dynamic and once with TOP strategy. Each subject had at least 20 minutes of break between each testing. The sequence of the strategies was equally alternated for all three strategies. Differences between strategies were statistically evaluated with respect to examination time, parameters MS (Mean Sensitivity), MD (Mean Defect) and LV (Loss Variance), the extent and depth of a visual field defect, sensitivity and specificity. (Abstract truncated at 2000 characters)
Deskriptorji     PERIMETRY
DIAGNOSIS, COMPUTER-ASSISTED
VISUAL FIELDS
SCOTOMA
SENSITIVITY AND SPECIFICITY
MACULAR DEGENERATION
ANGIOID STREAKS
DIABETIC RETINOPATHY
RETINAL DETACHMENT