Restitution of potential visual acuity in low vision patients with the use of yoke prisms
| Autor: | Jack E. Teplitsky, Samuel N. Markowitz, Maryam Taheri-Shirazi |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Low vision rehabilitation
medicine.medical_specialty Visual acuity Yoke prisms genetic structures Visual Acuity Vision Low Macular Degeneration 03 medical and health sciences 0302 clinical medicine Primary outcome Ophthalmology medicine Humans Potential visual acuity In patient Low vision Retrospective Studies business.industry Age-related macular degeneration Preferred retinal locus Macular degeneration medicine.disease eye diseases Restitution 030221 ophthalmology & optometry Original Article sense organs medicine.symptom business 030217 neurology & neurosurgery Yoke Optometry |
| Zdroj: | Journal of Optometry |
| ISSN: | 1888-4296 |
| DOI: | 10.1016/j.optom.2020.10.004 |
| Popis: | Purpose To determine the efficacy of prisms when used for redirection of incoming images towards the preferred reinal loci (PRLs) for restitution of potential visual acuity (PVA) in low vision cases with age-related macular degeneration (AMD). Methods Retrospective comparative interventional case series review. Low vision rehabilitation (LVR) protocol used included best corrected visual acuity (BCVA), PVA, topographic PRL identification and use of prisms to produce image redirection to the presumed PRL. The primary outcome measure selected for analysis was BCVA for viewing distance targets after use of yoke prisms. Results Image relocation with prisms in patients with AMD resulted in significantly better BCVA levels (t32 = 8.57, p < 0.0001) in the better eye. Distance BCVA levels achieved were almost identical to PVA levels (t32 = 0.415, p < 0.681) (y= -0.136 + 1.195x, r = 0.8333, p < 0.001). Conclusions Use of yoke prisms for image redirection towards a peripheral identifiable PRL may result in PVA restitution in most cases. |
| Databáze: | OpenAIRE |
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