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Published on: April 11, 2025
Simulation of visual impairment in persons with normal vision for scientific research
Carl Halladay Abraham1, Godfred Sakyi-Badu1, Samuel Bert Boadi-Kusi1
1Department of Optometry and Vision Science, University of Cape Coast, Cape Coast, Ghana.
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Simulation of visual impairment in healthy eyes has multiple applications in students' training, research and product development. However, due to the absence of an existing standard protocol, the method of simulation was left to the discretion of the researcher. This review aimed to outline the various methods of simulating visual impairment and categorising them. A scoping review of the relevant publications was conducted. Of the 1593 articles originally retrieved from the databases, 103 were included in the review. The characteristics of the participants, the method for simulation of the visual impairment in persons with normal vision and the level or type of visual impairment that was simulated were extracted from the papers. None of the methods of simulation can be judged as being superior to the others. However, electronic displays produced the most consistent form of visual impairment simulation.
