Match each of the following disorders of the eye or ear with its corresponding definition or description.
-a structural irregularity of the stapes that impairs conduction
A)glaucoma
B)tinnitus
C)cataracts
D)nyctalopia
E)otosclerosis
F)presbyopia
G)astigmatism
H)otitis
I)myopia
J)macular degeneration
K)Ménière disease
L)hyperopia
M)conjunctivitis