منابع مشابه
Effect of ageing on keratoconic corneas
PURPOSE To explore the potential effect of ageing on the corneal curvature and corrected visual acuity in patients with long-term keratoconus because of the paucity of these patients older than 50 years. METHODS Records of keratoconic patients, who had initially presented to a specialized contact lens clinic and followed for more than 20 years after disease onset, were reviewed. Collected inf...
متن کامل[Abnormal distribution of trace elements in keratoconic corneas].
UNLABELLED Our understanding of etiology and pathogenesis of many disorders, corneal included, greatly relies on existing knowledge in human biochemistry and biophysics. This study was aimed at chemical mapping of normal and keratoconic corneas. MATERIAL AND METHODS Modern methods of analytical chemistry, such as X-ray fluorescence and energy-dispersive X-ray spectroscopy on the basis of scan...
متن کاملeffect of oral presentation on development of l2 learners grammar
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
15 صفحه اولIn vitro incorporation of proline into keratoconic human corneas.
Corneal buttons were obtained from four young adults with advanced keratoconus following perforating keratoplasty. The corneal buttons were incubated in organ culture media containing 3H-proline. Autoradiographs of corneal sections showed that the incorporation of the radioisotope was significantly higher in all layers of the kerotoconic corneas than that found in the normal controls, indicatin...
متن کاملTransepithelial corneal collagen cross-linking in ultrathin keratoconic corneas
BACKGROUND The purpose of this paper was to report the results of transepithelial corneal collagen cross-linking (CXL) with modified riboflavin and ultraviolet A irradiation in patients affected by keratoconus, each with thinnest pachymetry values of less than 400 μm (with epithelium) and not treatable using standard de-epithelialization techniques. METHODS Sixteen patients affected by progre...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Optometry
سال: 2016
ISSN: 1888-4296
DOI: 10.1016/j.optom.2015.05.001