Subjects: EYE diseases; WORK environment; COMPUTER vision syndrome
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Subjects: INFLUENZA complications; RESEARCH; STATISTICSGHANA
Subjects: *EYE diseases; *RETINAL diseases; *ADULTSINDIA
Subjects: DRY eye syndromes; DISEASE prevalence; MOUNTAIN climateINDIA
Subjects: STATISTICS; EYEGLASSES; HEALTH services accessibilityUNITED States
Subjects: *REFRACTIVE errors; *EYE diseases; *VISUAL acuityINDIA
Subjects: ASTIGMATISM; DISEASE prevalence; RURAL health
Subjects: VISUAL acuity; DISEASE prevalence; EYE diseasesCHINA
Subjects: *EYE diseases; *DATA warehousing; *ETHNICITYUNITED States
Subjects: *WORMS; *EYE diseases; *BIOPSY