Changes in Diadenosine Polyphosphates during Alignment-Fit and Orthokeratology Rigid Gas Permeable Lens Wear
نویسندگان
چکیده
منابع مشابه
Changes in diadenosine polyphosphates during alignment-fit and orthokeratology rigid gas permeable lens wear.
PURPOSE To evaluate the levels of dinucleotides diadenosine tetraphosphate (Ap(4)A) and diadenosine pentaphosphate (Ap(5)A) in tears of patients wearing rigid gas permeable (RGP) contact lenses on a daily wear basis and of patients wearing reverse-geometry RGP lenses overnight for orthokeratology treatment. METHODS Twenty-two young volunteers (10 females, 12 males; 23.47 ± 4.49 years) were fi...
متن کاملCorneal aberration changes after rigid gas permeable contact lens wear in keratokonic patients
PURPOSE To determine the short-term effect of rigid gas permeable (RGP) contact lenses on corneal aberrations in keratoconic patients. METHOD Sixteen keratoconic eyes with no history of RGP lens wear were included. They all had corneal aberrometry using Pentacam, and different aberration indices of the anterior and posterior surfaces of the cornea were measured before and 3 months after fitti...
متن کاملImpact of rigid gas-permeable contact lens extended wear on corneal epithelial barrier function.
PURPOSE To measure the effect of hypoxia and eye closure on epithelial permeability to fluorescein (P(dc)) during rigid lens extended wear (EW). METHODS Central corneal thickness (CT) and P(dc) were measured in 42 subjects with an optical pachometer and automated scanning fluorophotometer, respectively. All subjects had been successfully wearing rigid gas-permeable (RGP) lenses on a 6-night E...
متن کاملSpectral Optical Coherence Tomography vs. fluorescein pattern for rigid gas-permeable lens fit
BACKGROUND This study aimed to evaluate anterior segment spectral optical coherence tomography (AS SOCT) for assessing the lens-to-cornea fit of rigid gas-permeable (RGP) lenses. The results were verified with the fluorescein pattern method, considered the criterion standard for RGP lens alignment evaluations. MATERIAL AND METHODS Twenty-six eyes of 14 patients were enrolled in the study. Ini...
متن کاملOptimal time following fluorescein instillation to evaluate rigid gas permeable contact lens fit.
PURPOSE To examine the optimum time at which fluorescein patterns of gas permeable lenses (GPs) should be evaluated. METHODS Aligned, 0.2mm steep and 0.2mm flat GPs were fitted to 17 patients (aged 20.6 ± 1.1 years, 10 male). Fluorescein was applied to their upper temporal bulbar conjunctiva with a moistened fluorescein strip. Digital slit lamp images (CSO, Italy) at 10× magnification of the ...
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ژورنال
عنوان ژورنال: Investigative Opthalmology & Visual Science
سال: 2012
ISSN: 1552-5783
DOI: 10.1167/iovs.11-9342