Dry eye is a common condition in which the eyes do not produce enough tears. Dry eyes are caused by a lack of adequate tears.
Read moreLight rays enter through the cornea where they are refracted and pass through the pupil to finally form a sharp focus or image on the retina.
Read moreA chalazion is a small painless bump on the eyelid. It happens when the eyelids oil glands clog up. It could start as an internal hordeolum (Stye).
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