The effect of various low-vision aids on reading performance in individuals with visual impairment

Given the rising global prevalence of visual impairment and the increasing demand for vision rehabilitation, this study aimed to explore the effects of four types of low-vision aids on reading performance in individuals with visual impairment. Reading performance was assessed using two versions of the Persian MNREAD chart and subsequently re-evaluated with a digital video magnifier, tele-microscope, stand magnifier, and handheld magnifier. This study involved 77 individuals with visual impairment with a mean age of 53.09 ± 16.15 years. The results showed that with the use of low-vision aids, reading acuity significantly improved, critical print size shifted toward smaller font sizes, and reading accessibility index increased. However, a significant decrease in maximum reading speed was observed while using low-vision aids. According to the findings, while low-vision aids significantly improved reading acuity, reading speeds decreased with these aids compared to unaided condition, which could affect reading efficiency.