With many computer users wear contact lenses, researchers in Spain reviewed published studies to see if contact lens wear increases the risk of computer vision problems or causes a worsening of computer vision syndrome.
The investigators found 114 studies written in English or Spanish and published from 2003 to 2013 that referenced both contact lenses and computer use. They chose six studies for final analysis.
All six revealed that contact lens wearers were more likely to have computer vision syndrome symptoms than individuals who wore eyeglasses only or did not need corrective lenses. Prevalence of symptoms ranged from 17 to 95 percent among contact lens wearers and 10 to 58 percent among non-wearers.
Also, contact lens wearers were four times more likely to have dry eyes during or after computer use, compared with non-wearers.
The study authors concluded that, during computer use, contact lens wearers suffer more eye discomfort and visual disturbances than non-wearers. But they also stated that, due to the small number of studies included in their analysis and the non-conclusive nature of some findings, more research is needed to determine the best type of contact lenses for computer users and how the lenses should be used.