PREFERRED RETINAL LOCUS LOCATIONS IN AGE-RELATED MACULAR DEGENERATION
An evaluation of the preferred retinal locus (PRL) in patients with age-related macular degeneration and a central scotoma is becoming a standard of care in the practice of low-vision rehabilitation. This is a retrospective study of PRL specifications and whether they have a correlation with the best-corrected visual acuities of patients with age-related macular degeneration.Methods:
Seventy-two patients with macular degeneration (144 eyes) were included in the study. The PRLs were evaluated monocularly with a scanning laser ophthalmoscope. Each PRL's location, the fovea-PRL distance, the PRL edge of the lesion distance, and PRL stability were measured with the built-in caliper of the ophthalmoscope.Results:
The most frequent location of a PRL was nasal (29.2%). The PRL was located in the left visual field of 34.0% of the patients. The best-corrected visual acuity values were positively correlated with the lesion's vertical and horizontal dimensions, as well as its surface area, the PRL-fovea distance, the PRL border of the lesion distance, and PRL stability.Conclusion:
The clinical PRL evaluation methodology that we describe can be used to facilitate making decisions on how to provide best visual rehabilitation to patients with a central scotoma.