Institutional members access full text with Ovid®

Share this article on:

PREFERRED RETINAL LOCUS LOCATIONS IN AGE-RELATED MACULAR DEGENERATION

Erbezci, Murat, MD*; Ozturk, Taylan, MD

doi: 10.1097/IAE.0000000000001897
Original Study: PDF Only

Purpose: 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.

The preferred retinal locus localization is an important part of the evaluation of the low-vision patients with central scotoma. When both eyes were evaluated together, the most frequent location of a preferred retinal locus was nasal (29.2%). The preferred retinal locus was located in the left visual field of 34.0% of the patients.

*Erbezci Eye Clinic, Izmir, Turkey; and

Department of Ophthalmology, Dokuz Eylul University School of Medicine, Izmir, Turkey.

Reprint requests: Murat Erbezci, MD, Erbezci Eye Clinic, Plevne Bulvari No. 20/2, Izmir 35220, Turkey; e-mail: murat@muraterbezci.com

None of the authors has any financial/conflicting interests to disclose.

© 2018 by Ophthalmic Communications Society, Inc.