74 THE ORGANS OF SPECIAL SENSE. 



and a sty is formed. Pink eye is conjunctivitis or in- 

 flammation of the conjunctiva. A Meibomian duct 

 may become stopped and cause bulging, or there may 

 be a sagging down or ptosis of the upper lid in certain 

 diseases, as meningitis, apoplexy, and more especially 

 syphilis. Rodent ulcer often begins by the eye or on the 

 cheek. 



