Quantitative single and multi-surface clinical corneal topography utilizing optical coherence tomography.
Opt Lett
; 38(8): 1212-4, 2013 Apr 15.
Article
em En
| MEDLINE
| ID: mdl-23595434
ABSTRACT
Successful surgical treatment of ocular astigmatism requires accurate characterization of both magnitude and axis of the astigmatism. Keratometry and topography are clinically widely used for this measurement; however, their analysis is limited to the anterior corneal surface. Unlike these techniques, optical coherence tomography (OCT) offers the advantage of measuring both the anterior and posterior corneal surface contributions. We present a technique to combine the local curvatures of both surfaces into a single pseudosurface suitable for clinical application. Building on prior work in distributed scanning OCT (DSOCT) to remove corrupting patient motion artifacts, we present the results of a pilot patient study where extracted values of clinical corneal astigmatic power magnitude and direction from DSOCT corneal volumes were comparable to standard clinical measures of corneal astigmatism.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Córnea
/
Tomografia de Coerência Óptica
Limite:
Humans
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article