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Fourier‐domain OCT and keratoconus
Author(s) -
IDOIPE M,
EGEA MC,
PRIETO E,
HERRERO LATORRE R,
FERNANDEZPEREZ S,
SANCHEZ PEREZ A,
BRITO C
Publication year - 2011
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2011.409.x
Subject(s) - keratoconus , optical coherence tomography , cirrus , ectasia , ophthalmology , medicine , fourier domain , cornea , surgery , geology , remote sensing
Purpose Optical coherence tomography (OCT) is an optical imaging technique that provides high resolution, cross‐sectional, in vivo, noninvasive measurements of the eye. The OCT is widely used in ophthalmology, especially in retina and neurophthalmology. For the study of anterior segment, Visante® OCT has so far been the most widespread, with the disadvantage of high cost and lacks posterior pole module.Currently one of the posterior pole tomographs, Cirrus HD‐OCT (Carl Zeiss Meditec Inc., Dublin, CA), has introduced an anterior segment high‐resolution module. Methods We describe the use of Cirrus HD‐OCT (Carl Zeiss Meditec Inc., Dublin, CA) and its application in Keratoconus, a prevalent pathology. We present several images of anterior segment Cirrus HD OCT. We can appreciate its use in the study, analysis and follow‐up of the keratoconus, as well as for the evaluation of the corneal status after surgical treatments. Results Cirrus HD allows the measurements of corneal thickness and show the thinning process,it shows the corneal ectasia,the presence and quantification of hydrops, defines the exact depth of the placement of intracorneal rings and the visualization of them, the tunnels of implantation, the condition of the epithelium in the main incision, the condition of the keratoplasty seeing the donor‐recipient interface, etc. Conclusion Cirrus HD allows the measurements of corneal thickness and show the thinning process,it shows the corneal ectasia,the presence and quantification of hydrops, defines the exact depth of the placement of intracorneal rings and the visualization of them, the tunnels of implantation, the condition of the epithelium in the main incision, the condition of the keratoplasty seeing the donor‐recipient interface, etc.