|
Conjunctival examination
|
N = 6473
|
|
Normal
|
35.1%
|
|
Abnormal
|
64.9%
|
|
Type of conjunctival abnormality
|
N = 4201
|
|
Papillae
|
13.2%
|
|
Conjunctival hyperemia
|
87.8%
|
|
Fluorescein staining
|
14.0%
|
|
Follicles
|
13.1%
|
|
Concretions
|
8.0%
|
|
Corneal examination
|
N = 6405
|
|
Normal
|
71.9%
|
|
Abnormal
|
28.1%
|
|
Type of corneal abnormality
|
N = 1801
|
|
Superficial punctate keratitis (fluorescein)
|
81.0%
|
|
Ulceration
|
6.2%
|
|
Pannus
|
9.8%
|
|
Filaments
|
14.5%
|
|
Tear film examination
|
|
Break-up time
|
N = 5527
|
|
Normal
|
49.5%
|
|
Abnormal (< 10 s)
|
50.5%
|
|
Schirmer’s test
|
N = 4758
|
|
Normal
|
63.0%
|
|
Abnormal (< 10 mm in 5 min)
|
37.0%
|