Abstract
In today’s world computers are ubiquitous and found in different forms which can effect intraocular pressure (IOP). Present study was undertaken to find out effect of day-to-day exposure to computer screen on IOP in normal individuals. 70 individuals (who met the screening conditions and devoid of obvious ocular pathology and systemic diseases) had their IOP’s checked before and 4 hour after computer session on same day, all working in general day shift, involving reading English printed material. The results showed significant (p<0.005) increase with IOP values before exposure being 17.89±3.25 and 16.99±2.84 and after exposure being 19.67±3.4 and 18.70±2.4 in left and right eye respectively. Increase in IOP was noted in 70% and 67% individuals in left and right eye. Differences in IOP of right and left eye may be due to dominance of eye or direction of script from left to right.
Highlights
Digital / electronic screens are found everywhere in different forms, in desktop computer, laptop, tablet to mobile phone
There is a dearth of literature on the effects of visual display terminals (VDTs) on intraocular pressure (IOP) especially in the young adults employed in professions which require continuous exposure to digital screens
A Sri Lankan study reported that the risk factors as pre-existing eye disease, female gender, higher daily computer usage, longer duration of occupation, not using a visual display terminal (VDT) filter, use of contact lenses, etc; among these duration of occupation and presence of pre-existing eye disease is associated with severity of Computer vision syndrome (CVS).[11]
Summary
Digital / electronic screens are found everywhere in different forms, in desktop computer, laptop, tablet to mobile phone. Humans blink about 15 times a minute, but studies show we blink less often while using computers and other digital screen devices, whether for work or play, this increases risk of harmful effects of exposure to screen.[1]. Studies have been conducted to find out the effect of exposure to visual display terminals (VDTs) or computer screens on refractive power of the eyes but reported no significant effect on refraction or worsening of myopia.[2,3] There is a dearth of literature on the effects of VDT on intraocular pressure (IOP) especially in the young adults employed in professions which require continuous exposure to digital screens. The risk of slowly rising IOP is gradual damage to the optic nerve. This study was done to assess the changes in IOP after considerable exposure to computer screens in young individuals
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