| Popis: |
To develop a statistical visual field analysis model (ANESTCAV) suitable for short-wavelength automated perimetry (SWAP), from the probability maps (PM).128 eyes of 128 subjects without ophthalmic pathology were considered. A SWAP test was performed with a modified Humphrey visual field analyzer. To determine the PM (1) we developed aStandard Visual Field(CVNR) corrected for age, (2) we assessed the differences between the CVNR and the visual field of each subject, and (3) from the distribution of the deviations, we determined the confident interval with 4 levels of statistical signification (95, 98, 99 and 99.5%) at each point of the visual field.A regression analysis calculates thestandard value(VNR) corrected for age at each point of the visual field. The 74 VNR of the visual field constitutes the CVNR corrected for age. Each point has a confident interval for each level of signification which determines the range and probability of value to be normal.The development of ANESTCAV obtained a precise instrument for perimetric analysis which establishes the ranges of normal results in these exploratory procedures. |
