Contact lens induced ulcerative keratitis is a serious complication which can be devastating for the patient if treatment is delayed. Extended wear is the commonest cause of microbial keratitis in contact lens wear. New extended wear silicone hydrogel contact lenses have higher oxygen transmissibility so that they can be worn continuously for 30 days. They can also be used as bandage contact le...

Contact lens induced ulcerative keratitis is a serious complication which can be devastating for the patient if treatment is delayed. Extended wear is the commonest cause of microbial keratitis in contact lens wear. New extended wear silicone hydrogel contact lenses have higher oxygen transmissibility so that they can be worn continuously for 30 days. They can also be used as bandage contact le...

MURRAY, S. O.-Lancet, Vol. I. p. 328, 1947. NELLEN, M.-Lancet, Vol. I, p. 326, 1947. NICOLAU, MME.-SOC. roumn. d'Oiht., Bucarest, Vol. XVII. p. 6. 1931; Ref. Ann. d'Ocul., Vol. CLXX, p. 351. 1933. NOBL.-Wienter Dermat. Ges., Vol. XIII, p. 2, 1895. Quoted by Chaillous. 0 DONOVAN, W. J. and MICHAELSON, L. C.-Brit.JI. Oplzthal., Vol. XXX, p. 193, 1946. PERCIVAL, 1G. H. and GIBSON, H. I.-Brit. Ji. ...

Many iris recognition systems operate under the assumption that non-cosmetic contact lenses have no or minimal effect on iris biometrics performance and convenience. In this paper we show results of a study of 12,003 images from 87 contact-lens-wearing subjects and 9,697 images from 124 non-contactlens wearing subjects. We visually classified the contact lens images into four categories accordi...

AIM To determine the effect of pH, osmolality, and buffering system on the oxygen permeability (Dk) of soft contact lenses. METHODS Two hydrogel lenses (nelfilcon A and etafilcon A) and 2 silicone hydrogel lenses (lotrafilcon A and balafilcon A) were used in the study. These lenses were incubated in phosphate-buffered saline (PBS) and borate-buffered saline (BBS) solutions adjusted by 0.8 pH ...

1. Wagner S, Conrad F, Bakaraju RC, Fedtke C, Ehrmann K, Holden BA. Power profiles of single vision and multifocal soft contact lenses. Cont Lens Anterior Eye. 2014;38:2--14. 2. Plainis S, Atchison DA, Charman WN. Power profiles of multifocal contact lenses and their interpretation. Optom Vis Sci. 2013;90:1066--1077. 3. Joannes L, Hough T, Hutsebaut X, et al. The reproducibility of a new power ...

© Bausch & Lomb Incorporated. All rights reserved worldwide. ® / TM are trademarks of Bausch & Lomb Incorporated or its affiliates. Printed in U.S.A. IMPORTANT This package insert and fitting guide has been developed to provide practitioners with information covering characteristics of the BAUSCH & LOMB® PureVision® (balafilcon A) Visibility Tinted contact lens and to illustrate fitting procedu...

PURPOSE To determine whether class 1 UV-blocking contact lenses protect against UVB radiation-induced damage in a human lens epithelial cell line (HLE B-3) and postmortem human lenses using a proteomics approach. METHODS HLE B-3 cells were exposed to 6.4 mW/cm(2) UVB radiation at 302 nm for 2 minutes (768 mJ/cm(2)) with or without covering by senofilcon A class 1 UV-blocking contact lenses or...

It has been suggested that contact lens wear improves the visual function of patients with visual loss from congenital nystagmus. In this study, four patients with congenital nystagmus had two evaluations separated by at least one week (one with spectacles, one with contact lenses) including visual acuity, contrast sensitivity, oscillopsia scale, quality of life questionnaire (NEI VFQ-25), and ...