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  • Title: Visual rehabilitation of patients with advanced stages of glaucoma, optic atrophy, myopia or retinitis pigmentosa.
    Author: Nilsson UL.
    Journal: Doc Ophthalmol; 1988 Dec; 70(4):363-83. PubMed ID: 3266961.
    Abstract:
    Ninety-six patients with advanced stages of glaucoma, optic atrophy, myopia or retinitis pigmentosa (RP) who could not manage with ordinary spectacles or simple magnifying aids were taken care of at the Low Vision Clinic for rehabilitation and followed for an average of 3.6 years (the glaucoma group) up to an average of 6.0 years (the optic atrophy group). They were given high power optical aids and subjected to educational training in the proper use of these aids for best utilization of residual vision. Many of them (for optic atrophy as high a percentage as 40.7) were taught to use extra macular retina by means of eccentric viewing technique. The mean age of the oldest group, the glaucoma patients, was 69.3 years. The three other groups were about 20 to 25 years younger, on an average. (Another 35 patients were seen for the first series of visits but could not be followed up, the main reasons being death (13 patients) and moving out of the area (9 patients). The mean power of the aids (mainly telescopes) used for distance vision was 2.1 x (RP)-5.3 x (optic atrophy). Increased near addition and hyperocular lenses were the main aids for reading and near vision, the mean power being 17.0 dioptres (glaucoma)-23.5 dioptres (RP)(4.3 x -5.9 x). Aids were also provided for intermediate distance and for "spot use". The mean number of series of visits was 3.1 (myopia)-3.5 (glaucoma) and the average number of 1 h training sessions 2.2 (glaucoma)-2.5 (optic atrophy, RP) per series of visits. With aids and educational training, the mean visual acuity improved on the first series of visits from 0.31 to 0.60 for the glaucoma group, from 0.19 to 0.70 for the optic atrophy group, from 0.12 to 0.68 for the myopes and from 0.35 to 0.52 for the RP group. After the last series of visits acuity was still as good as 0.51, 0.61, 0.73 and 0.45, respectively. The number of individuals able to read newspaper text increased from 16.1% to 100.0% for the glaucoma patients, from 14.8% to 100.0% for the optic atrophy patients, from 75.0% to 100.0% for the myopes, and from 50.0% to 95.5% for the RP patients. The results show clearly that the methods used for rehabilitation of patients with glaucoma, optic atrophy, myopia or RP through optical aids and sessions of educational training are very successful, with substantial improvement of life quality.
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