Ambrósio, Renato Percentage thickness increase and absolute difference from thinnest to describe thickness profile. [electronic resource] - Journal of refractive surgery (Thorofare, N.J. : 1995) Feb 2010 - 84-6; author reply 86-7 p. digital Publication Type: Letter; Comment ISSN: 1081-597X Standard No.: 10.3928/1081597X-20100121-01 doi Subjects--Topical Terms: Corneal Stroma--diagnostic imagingCorneal TopographyFalse Positive ReactionsHumansImaging, Three-DimensionalKeratoconus--diagnosisRefraction, Ocular--physiologySensitivity and SpecificityUltrasonography