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Published on: August 11, 2016
Reading acuity in albinism: evaluation with MNREAD charts
Kimberly Merrill1, Katherine Hogue, Sara Downes
1Department of Ophthalmology, University of Minnesota, Minneapolis, MN 55455, USA.
Summary
Individuals with albinism benefit from specific print sizes for effortless reading. The MNREAD charts identified a critical print size (CPS) larger than their reading acuity (RA) to optimize reading speed and function.
Area of Science:
- Ophthalmology
- Low Vision Research
- Genetics
Background:
- Albinism affects vision, impacting reading ability.
- Standard reading acuity (RA) may not reflect functional reading performance.
- The MNREAD charts assess reading acuity (RA), maximum reading speed (MRS), and critical print size (CPS).
Purpose of the Study:
- To evaluate reading performance in individuals with albinism using MNREAD charts.
- To determine the optimal print size for effortless reading in this population.
- To establish recommendations for educational and vocational support.
Main Methods:
- 63 subjects with albinism underwent MNREAD testing.
- Reading continuous text to determine RA, MRS, and CPS.
- Nystagmus, strabismus, and distance visual acuity were also recorded.
Main Results:
- Median MRS was 150 words per minute.
- Mean CPS (0.84 logMAR) was significantly larger than mean RA (0.53 logMAR).
- Results varied among participants.
Conclusions:
- MNREAD charts effectively measure functional reading in albinism.
- A larger print size than standard RA is recommended for effortless reading.
- Print size recommendations can aid educational and vocational planning.
