Bühren, Jens Defining subclinical keratoconus using corneal first-surface higher-order aberrations. [electronic resource] - American journal of ophthalmology Mar 2007 - 381-9 p. digital Publication Type: Journal Article ISSN: 0002-9394 Standard No.: 10.1016/j.ajo.2006.11.062 doi Subjects--Topical Terms: AdolescentAdultCornea--pathologyCorneal TopographyHumansKeratoconus--diagnosisMiddle AgedProspective StudiesROC CurveRefraction, OcularRefractive Errors--diagnosisSensitivity and Specificity