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Showing posts from June, 2020

Meibomian Gland Dysfunction And Dry Eye

Meibomian glands also called tarsal glands are modified sebaceous ( oil glands) .A single row of Meibomian Glands (MG) is present in both the upper and lower lids slightly behind the eyelashes. There are around 35 -40 glands in the upper lid and 30-35 glands in the lower lid. These glands secrete oil ( sebum ) which forms the uppermost layer of the tear film, protecting it ( water of the tears) from evaporation into the environment. If this oil is deficient or abnormal in quality,  the tear film will not be stable on the ocular surface, leading to dryness or desiccation of the external eye surface. Peristent dryness can result in redness, itching, discharge, watering,  transient blurring of vision, headache,and also discontinuity in the external layers ( cornea and conjunctiva). The  common causes of Meibomian Gland Dysfunction (MGD)   are increased age, improper hygiene, excessive screen hours, contact lens wear,  eye rubbing, smoking.   MGD is twice as prevalent in diabetics as in th

Digital Eye Strain

Introduction Most of our life revolves around the digital screen, be it the computer or laptops, mobiles, and TV screens. This prolonged exposure causes serious damage to our eyes and causes redness and dryness in the eyes. This condition is termed as digital strain or computer eye syndrome or computer vision syndrome. Almost 60% of the people using the digital screen for a long period experience symptoms of computer eye syndrome. Computer Eye Syndrome Or Digital Strain When we expose to the digital devices such a computer, laptop, tablets, TV screens, and mobile phones for a prolonged period, there is a feeling of discomfort in our eyes. This is known as computer eye syndrome or digital strain. This is because digital devices emit blue light rays. When we work on the digital screen, our eyes have to accommodate frequently on the screen. This results in the straining of the eyes. Further, the glare and flickering of light on the screen also play a role in the straining of eyes. Althoug