Distinguishing between contact lens warpage and ectasia: Usefulness of optical coherence tomography epithelial thickness mapping
نویسندگان
چکیده
منابع مشابه
Correlation between Visual Acuity and Optical Coherence Tomography-Measured Retinal Thickness in Diabetic Macular Edema
Background and Objective: Diabetic macular edema (DME) is one of the common complications of diabetes which significantly accounts for preventable visual impairment and blindness. Central macular thickness (CMT) is a feature found in DME patients. This study aims to determine the relationship between optical coherence tomography (OCT)-measured CMT and visual acuity (VA) in patients with DME bef...
متن کاملApplication of optical coherence tomography to automated contact lens metrology.
Optical coherence tomography (OCT) is a nondestructive imaging modality with the potential to make quantitative spatial measurements. OCT's noncontact nature, sensitivity to small refractive index mismatches, and micron-scale resolution make it attractive for contact lens metrology, specifically, measuring prism. Prism is defined as the maximum difference in thickness of the contact lens, measu...
متن کاملDifferentiating Keratoconus and Corneal Warpage by Analyzing Focal Change Patterns in Corneal Topography, Pachymetry, and Epithelial Thickness Maps
PURPOSE To differentiate between keratoconus and contact lens-related corneal warpage by combining focal change patterns in anterior corneal topography, pachymetry, and epithelial thickness maps. METHODS Pachymetry and epithelial thickness maps of normal, keratoconus, and warpage, and forme fruste keratoconus (FFK) eyes were obtained from a Fourier-domain optical coherence tomography (OCT). E...
متن کاملCorneal epithelial thickness mapping using Fourier-domain optical coherence tomography for detection of form fruste keratoconus.
PURPOSE To determine whether optical coherence tomography (OCT) epithelial mapping can improve the detection of form fruste keratoconus. SETTING French National Eye Hospital, Paris 6 Pierre & Marie Curie University, Paris, France. DESIGN Retrospective comparative study. METHODS Eyes with normal corneas, form fruste keratoconus, moderate keratoconus, or severe keratoconus were assessed usi...
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Background and Objective: One of the most common extracutaneous complications in psoriasis patients is ocular complications, which is controversial concerning its effect on choroidal thickness. This study aimed to compare the psoriasis patients with healthy individuals in terms of the thickness of the choroidal layer using the optical coherence tomography technique. Materials and Methods: In t...
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ژورنال
عنوان ژورنال: Journal of Cataract and Refractive Surgery
سال: 2017
ISSN: 0886-3350
DOI: 10.1016/j.jcrs.2016.10.019