Tova Ma-Naim, MD, of Goldschleger Eye Research Institute, Tel-Aviv University, Israel, and colleagues, showed that perceptual training on mobile devices (MOBs) is an effective solution for improving near vision in presbyopia by enhancing image processing in the brain.
In presbyopia, uncorrected near visual acuity (UCNVA) results in blurred image. The researchers previously showed that perceptual training on a PC (30 minute session) improved the UCNVA (81%, 2.57 ETDRS lines) and enabled glasses-free reading without optical changes. For the current study they tested the training efficacy on MOBs.
Two groups (young, presbyopes) were trained on MOB (iPhone, etc.) from a distance of 40 cm (only 15 min/session, three times/week). Dr. Ma-Naim and colleagues found that the improvement of the UCNVA of presbyopes on MOB was similar to the results on PC (P
>0.05), whereas their contrast sensitivity was better on MOB (P