Еlectronic video magnifiers as a low-vision aid for patients with Stargardt disease

Abstract

Electronic video magnifiers outperform optical systems in terms of convenience and image quality. However, visually impaired patients and ophthalmologists in Russian Federation mostly lack knowledge of these useful technical rehabilitation devises. As shown by a survey of patients (n=141) with inherited retinal dystrophy, conducted by the public organization Look To See! 13% of patients use video magnifiers for writing, and 25% are satisfied with their devices. This article compensates for the gap in knowledge about electronic video magnifiers.
 Video magnifiers come in three main types: handheld, desktop, and portable. Wearable video magnifiers are the recent addition to these types. Each type has its own advantages and disadvantages, which determine their main functionality. Handheld video magnifiers are suitable for reading, desktop ones are used to equip a workplace; portable ones are ideal for schoolchildren because they can be used in reading and writing and easily carried to classes. Wearable video magnifiers are a promising class, but a well-established view on their use is still lacking.
 Ophthalmologists must have not only knowledge about the technical component but also the mechanism of operation of video magnifiers and how to draw up the necessary documents for their acquisition after establishing a disability and for their legitimate use in a general education school.