Contribuição da tomografia de coerência óptica de 820 nm na distrofia granular corneana: relato de caso

Gomes, Beatriz de Abreu Fiuza; Bichara, Lara Murad; Santhiago, Marcony R.; Filho, Octavio Moura Brasil do Amaral

doi:10.1590/s0004-27492008000500022

Cited by 1 publication

(1 citation statement)

References 11 publications

(27 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Time-domain OCTs can also be used to assess eyes with corneal dystrophies and guide treatment decisions [6, 43]. Similarly to cases with Salzmann's nodules, in cases of corneal dystrophies the pattern of corneal deposits on the cross-sectional time-domain OCT scans correspond to that on histopathologic serial sections [36].…”

Section: Role Of Oct In Excimer Laser Phototherapeutic Keratectomymentioning

confidence: 99%

Role of Optical Coherence Tomography on Corneal Surface Laser Ablation

Ventura

Moraes

Kara-Júnior

et al. 2012

Journal of Ophthalmology

View full text Add to dashboard Cite

This paper focuses on reviewing the roles of optical coherence tomography (OCT) on corneal surface laser ablation procedures. OCT is an optical imaging modality that uses low-coherence interferometry to provide noninvasive cross-sectional imaging of tissue microstructure in vivo. There are two types of OCTs, each with transverse and axial spatial resolutions of a few micrometers: the time-domain and the fourier-domain OCTs. Both have been increasingly used by refractive surgeons and have specific advantages. Which of the current imaging instruments is a better choice depends on the specific application. In laser in situ keratomileusis (LASIK) and in excimer laser phototherapeutic keratectomy (PTK), OCT can be used to assess corneal characteristics and guide treatment decisions. OCT accurately measures central corneal thickness, evaluates the regularity of LASIK flaps, and quantifies flap and residual stromal bed thickness. When evaluating the ablation depth accuracy by subtracting preoperative from postoperative measurements, OCT pachymetry correlates well with laser ablation settings. In addition, OCT can be used to provide precise information on the morphology and depth of corneal pathologic abnormalities, such as corneal degenerations, dystrophies, and opacities, correlating with histopathologic findings.

show abstract

Section: Role Of Oct In Excimer Laser Phototherapeutic Keratectomymentioning

confidence: 99%