title: Aetiology of keratoconus.
abstract: Keratoconus has a common association with atopic conditions. Most keratoconus patients rub their eyes excessively. Eye-rubbing is considered the dominant aetiological factor in two-thirds of patients with keratoconus who progress to contact lens wear. A classification of keratoconus based on the dominant aetiological factors is proposed. No significant psychoneurotic factor was found in the keratoconus patients compared with patients in the control group.
mesh_terms: D000328:Adult; D005260:Female; D006184:Habits; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000150:complications; D007640:Keratoconus / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D009497:Neurotic Disorders / Q000150:complications; D010555:Personality Inventory; D012923:Social Class