Dry Eye

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It occurs when there is inadequate tear volume or function. 

Clinical presentation 

Feelings of dryness, grittiness, burning and foreign body sensation, usually worse during the day

Stringy  discharge,  redness  and  transient  blurring  of  vision  are  also  common.  Exclude allergic conjunctivitis

Investigations 

• Visual acuity
• Slit lamp bimicroscopy

Non-pharmacological Treatment 

• Control symptoms since the condition is not curable
• Educate patients to avoid unprescribed eye medications which may worsen the dryness and control their environmental factors by e.g. blinking frequently during visual attentive tasks, avoid air conditioners

Pharmacological Treatment  Tear substitutes give: 

C: hydroxypropyl methylcellulose 0.7%, ophthalmic drops, 1drop, 6hourly.