| Physiology |
The major modes of transmission of diseases to the conjunctiva include the hands, airborne fomites, and spread for adjacent annexal infections. Eye infections include eyelid infections, blepharitis, dacryocystitis, orbital cellulitis, conjunctivitis, keratitis, endophthalmitis retinitis, and chorioretinitis. Pink eye is caused by adenovirus. It presents as bilateral conjunctivitis with a sudden onset. Herpes simplex and zoster present as periorbital or corneal infections. Nontuberculous mycobacterial keratitis may occur following trauma or surgery accompanied by the use of local corticosteroids.
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