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What is Neuroparalytic keratitis is associated with paralysis of which cranial nerve? and explain in detail?
Ans. d (Seventh cranial nerve palsy). (Ref. Parson, Diseases of eye, 18th ed., 154; Basak, Ophthalmology, 2nd/298)Herpes simplex keratitis (HSV 1)Neuro- ophthalmological keratitisNeuroparalytic KeratitisMarginal keratitisPhlecty-nular keratitisInterstitial keratitisMooren's ulcer- Primary herpetic kertitis- Dendritic geographical (inadvertent use of steroids)- Disciform (treatment is steroids)- Punctate- numular- Optic neuritis- Cranial nerve palsy (3, 4 and 6th nerves)- Affects cornea, but 3rd cranial nerve palsy is most common cause.Due to paralysis of motor nerve that closes eyelids and is usually a sequel to facial palsy.Catarrhal ulcerCaused by Staph.- Endogenous toxin induced keratitis- TB protein, staph, strepto, intestinal parasites- Fascicular ulcer- Ring ulcer- Pannus- Treatment: topical steroids'Groundglass' appearance- Salmon patch of Hutchinson- KP nodules- Etiology: Congenital syphilis, TB (Hutchison triad) and Cogan's syndrome.Chronic serpiginous ulcer.Treated with steroids