PURPOSE: To evaluate the spectral filter's influence on visual functions in various stages of primary open angle glaucoma (POAG) with/without cataract and age-related macular degeneration (AMD).
METHODS: 64 patients (112 eyes) with POAG I-III were studied with/without spectral filters (wave length range: 480 nm - 680 nm) before and after the complex visual probe. 63 eyes had early cataract and 47 ones were diagnosed with AMD. Colour Campimetry (PC-based “Ocular” program), automated perimetry and standard methods of ophthalmic investigation were applied.
RESULTS: The average improve of the visual acuity was equal to 0,15 using the colour filters. The optimal filter's wave length was dependent on the stage of glaucoma as well as the presence of the cataract and AMD. 39 patients demonstrated better luminance sensitivity in the central part of the visual field 21 degrees using the optimal filters.
CONCLUSIONS: The Spectral Filter's application in glaucoma can improve Visual Function and reduce the eye strain effect.