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Updated: Aug 12, 2026

A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision
Published on: February 11, 2014
Abstract:
The primary cause of impaired vision was retinal pathology for 414 (83%) patients, optic nerve pathology (including glaucoma) for 33 patients (7%), other pathology for 53 (11%) patients. The following optical aids were prescribed: 35 distant spectacle corrections, 159 high-add bifocals, five high-add trifocals, 52 full-size magnifying spectacles, 102 half-eye magnifying spectacles, four stand magnifiers, and 44 paperweight type magnifiers. Of 193 patients evaluated, 122 (63%) were considered to have success with the aid prescribed.
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