Contact lens related corneal ulcer
AbstractA corneal ulcer caused by infection is one of the major causes of blindness worldwide. One of the recent health concerns isthe increasing incidence of corneal ulcers associated with contact lens user especially if the users fail to follow specificinstruction in using their contact lenses. Risk factors associated with increased risk of contact lens related corneal ulcers are:overnight wear, long duration of continuous wear, lower socio-economic classes, smoking, dry eye and poor hygiene. Thepresenting symptoms of contact lens related corneal ulcers include eye discomfort, foreign body sensation and lacrimation.More serious symptoms are redness (especially circum-corneal injection), severe pain, photophobia, eye discharge andblurring of vision. The diagnosis is established by a thorough slit lamp microscopic examination with fluorescein staining andcorneal scraping for Gram stain and culture of the infective organism. Delay in diagnosing and treatment can cause permanentblindness, therefore an early referral to ophthalmologist and commencing of antimicrobial therapy can prevent visual loss.
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