Abstract
PURPOSE: To investigate the natural history of RHO-associated retinitis pigmentosa (RP).
METHODS: A multicenter, medical chart review of 100 patients with autosomal dominant RHO-associated RP.
RESULTS: Based on visual fields, time-to-event analysis revealed median ages of 52 and 79 years to reach low vision (central visual field <20°) and blindness (central visual field <10°), respectively. For the best-corrected visual acuity (BCVA), the median age to reach mild impairment (20/67 ≤ BCVA < 20/40) was 72 years, whereas this could not be computed for lower acuities. Disease progression was significantly faster in patients with a generalized RP phenotype (n = 75; 75%) than that in patients with a sector RP phenotype (n = 25; 25%), in terms of decline rates of the BCVA (P < 0.001) and V4e retinal seeing areas (P < 0.005). The foveal thickness of the photoreceptor-retinal pigment epithelium (PR + RPE) complex correlated significantly with BCVA (Spearman's ρ = 0.733; P < 0.001).
CONCLUSION: Based on central visual fields, the optimal window of intervention for RHO-associated RP is before the 5th decade of life. Significant differences in disease progression are present between generalized and sector RP phenotypes. Our findings suggest that the PR + RPE complex is a potential surrogate endpoint for the BCVA in future studies.
| Original language | English |
|---|---|
| Pages (from-to) | 213-223 |
| Number of pages | 11 |
| Journal | Retina-The Journal of Retinal and Vitreous Diseases |
| Volume | 41 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2021 |
Keywords
- inherited retinal dystrophies
- natural history
- retinitis pigmentosa
- rhodopsin
- sector retinitis pigmentosa
- Electroretinography
- Follow-Up Studies
- Humans
- Middle Aged
- Male
- Acute-Phase Proteins/genetics
- Visual Acuity
- Visual Fields/physiology
- Forecasting
- Phenotype
- Retinal Pigment Epithelium/pathology
- Tomography, Optical Coherence/methods
- Female
- Aged
- Retrospective Studies
- Retinitis Pigmentosa/blood
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