Open AccessABCD: A new classification for keratoconus
Author(s) -
Michael W. Belin,
Gairik Kundu,
Naren Shetty,
Krati Gupta,
Ritika Mullick,
Prashansa Thakur
Publication year - 2020
Publication title -
indian journal of ophthalmology/indian journal of ophthalmology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.542
H-Index - 51
eISSN - 1998-3689
pISSN - 0301-4738
DOI - 10.4103/ijo.ijo_2078_20
Subject(s) - keratoconus , medicine , ectasia , cornea , ophthalmology , corneal topography , optometry , visual acuity , curvature , surgery , mathematics , geometry
Recent advances in the diagnosis and treatment of ectatic corneal disease have mandated a more modern staging system. The new Belin ABCD keratoconus staging system incorporates anterior and posterior curvature centered on the thinnest point of the cornea, thinnest pachymetry values and distance visual acuity in grades from 0-4. By including posterior curvature and thickness measurements based on the thinnest point, as opposed to apical, the new staging system better reflects anatomical changes seen in keratoconus and other ectatic diseases.