Trachoma

Roughness and soreness of the inside of the eyelids. This roughness is caused by a swelling of the lymph-corpuscles,forming, as it were, little lymphatic glands or lymphatic follicles.

Source: Ophthalmic Dictionary including pronunciation, derivation and definition of the words used in Optometry and Ophthalmology by James J. Lewis, Oph. D. Professor of Optometry in the Northern Illinois College of Ophthalmology and Otology, Chicago.