CHAPTER XXXI. 



DISEASES OF THE EYES. 



CONJUNCTIVITIS — NEBULA — ALBUGO STAPHYLOMA ULCERS — GLAU- 

 COMA AMAUROSIS STRABISMUS ECTROPIUM ENTROPIUM 



TRICHIASIS — DISTICHIASIS WARTS WOUNDS HAWS LACHRY- 

 MAL FISTULA STRICTURE PARASITES FUNGUS II^MATODES 



PERIODIC OPHTHALMIA CATARACT REMOVAL OF EYEBALL 



DISLOCATION OF EYEBALL MELANOSIS OF HUMOURS EXAMINA- 

 TION OF EYE BY CATOPTRIC TEST AND BY THE OPHTHALMOSCOPE. 



TRAUMATIC OPHTHALMIA — SIMPLE OPHTHALMIA — 

 CONJUNCTIVITIS, 



Caused by a blow, as tlie stroke of a whip, bites of insects, 

 common cold, or the lodgment of a foreign body. 



Inflammation of the superficial structures of the eye is mani- 

 fested by closure of the eyelids, sw^elling of them, and increased 

 secretion of tears, which flow down the cheeks, scalding the skin 

 to such an extent that it soon becomes divested of hair at every 

 part over which the tears flow, and the eye is retracted and 

 partly covered by the menibrana nictitans. If the eyehds be 

 turned up, the conjunctiva will be found in a stfete of extreme 

 congestion, and covered by a number of red streaks. The pro- 

 gress of inflammation, as seen in the eye, when conjunctivitis 

 proceeds perhaps from a simple catarrhal affection, is very 

 instructive. First of all, there is a slight weeping, and if one 

 may judge from actual personal feeling and experience, there is 

 a sense of irritation, as if a foreign body w^ere in the eye. The 

 surface of the cornea is dim and blue-looking, and vascularity is 

 seen only at its margin and the parts external to it, because it 

 possesses no vessels in its intimate structure, and the gradually 

 increasing opacity is due to exudation (as already explained) 

 within its ultimate cellular structure. 



