Table.

Historical and Clinical Characteristics of 285 patients < 19 years diagnosed with keratitis in Olmsted County, MN, from 2000 to 2009

Characteristics	Contact-lens associated keratitis	Infectious keratitis	Keratitis not otherwise specified	Keratitis sicca	Total
N	134	72	65	23	285
Age and sex adjusted Incidence per 100,000	36.7	19.7	17.8	6.3	78.0
Females: Males	85:49	37:35	41:24	17:6	172:113
Mean age at diagnosis in years (range)	16.5 (11.0–18.9)	15.6 (0.2–18.9)	13.2 (1.5–18.8)	13.1 (0.4–18.9)	15.3 (0.2–18.9)
Laterality (% unilateral: bilateral)	56:44	92:8	52:48	30:70	62:38
Ocular comorbidity	1a	7b	5c	5d	18
Medical comorbidity	5e	5f	7g	5h	21
Initial VA ≤ 20/40 in affected eye(s)	27 (20.1%)	19 (26.4%)	16 (24.6%)	2 (8.7%)	61 (21.4%)
Final VA ≤ 20/40 in affected eye(s)	9 (6.7%)	5 (6.9%)	8 (12.3%)	5 (21.7%)	24 (8.4%)

^aStrabismus

^bStrabismus (2), trauma (1), disorders of the adnexa and orbit (3), and uveitis (1).

^cAmblyopia (1), strabismus (2), nystagmus (1), and disorders of the adnexa and orbit (1).

^dAmblyopia (2), strabismus (3), nystagmus (1), disorders of the adnexa and orbit (3), and retina and vitreous (2).

^eMetabolic (1), neurologic (4), and endocrine (1).

^fGenetic (1), metabolic (1), musculoskeletal (1), urogenital (1), and infectious (1)

^gGenetic (3), neurocognitive (2), cardiac (1), neurologic (2), and oncologic (1).

^hNeurocognitive (2), neurologic (2), oncologic (1), and gastrointestinal (1).