The Collaborative International Dictionary of English v.0.48:

Trachoma \Tra*cho"ma\, n. [NL., fr. Gr. ? roughness, fr. ?
   rough.] (Med.)
   a contagious granular conjunctivitis caused by the bacterium
   Chlamydia trachomatis. It is a chronic inflammation of the
   conjunctiva -- Tra*chom"a*tous, a.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

trachoma
    n 1: a chronic contagious viral disease marked by inflammation
         of the conjunctiva and cornea of the eye and the formation
         of scar tissue

Moby Thesaurus II by Grady Ward, 1.0:

53 Moby Thesaurus words for "trachoma":
   ablepsia, amaurosis, benightedness, blepharitis, blind side,
   blind spot, blindfolding, blinding, blindness, blurring the eyes,
   cataract, cecity, choroiditis, conjunctivitis, cross-eye, darkness,
   defective vision, depriving of sight, detached retina,
   dim-sightedness, drop serene, economic blindness, esotropia,
   ever-during dark, excecation, eye defect, eyelessness, glaucoma,
   gutta serena, hoodwinking, iritis, keratitis, lack of vision,
   making blind, niphablepsia, optic neuritis, partial blindness,
   pink eye, psychic blindness, reduced sight, retinoblastoma,
   sightless eyes, sightlessness, snow blindness, soul-blindness,
   spiritual blindness, stone-blindness, sty, total blindness,
   unenlightenment, unseeingness, uveitis, walleye