Background: Epidemiological studies show that computed tomography (CT) is one of the main sources of ionizing radiations. Shielding of radiosensitive organs is one of the dose reduction methods. This study aimed to assess the eye lens dose reduction and image quality resulting from the use of radio-protective bismuth shield in brain CT imaging. Methods: Bismut...

BACKGROUND Free-living amoebae (FLA) including Acanthamoeba spp. and Hartmannella spp. are the causative agents of serious corneal infection especially within contact lens wearers. Thus contact lenses and their storage case could be a suitable niche for potentially pathogenic amoebae. The main objective of the present study was to evaluate the contamination of contact lenses to free living amoe...

To investigate the lubrication on different soft contact lenses during a week of wearing them. Twenty-five subjects participated in this research for six weeks and they wore six different soft contact lenses (Pure Vision B&L, Pure Vision II B&L, Air Optix, Focus N&D CIBA, Biofinity Cooper, Acuvue Oasys J&J). The contact lenses were randomly selected and the subjects did not know which contact l...

PURPOSE Many soft contact lens wearers have symptoms or signs that compromise successful lens wear. This study estimated the prevalence of problems in current wearers of soft contact lenses and tested the effect of refitting patients with senofilcon A silicone hydrogel lenses (ACUVUE Oasys). METHODS Prevalence was estimated from 1,092 current lens wearers for frequent or constant discomfort o...

PURPOSE To assess the validity and repeatability of objective compared to subjective contact lens fit analysis. METHODS Thirty-five subjects (aged 22.0±3.0 years) wore two different soft contact lens designs. Four lens fit variables: centration, horizontal lag, post-blink movement in up-gaze and push-up recovery speed were assessed subjectively (four observers) and objectively from slit-lamp ...

PURPOSE To evaluate ocular response and subject acceptance of a new multipurpose disinfecting solution (MPDS), Complete Revitalens (RevitaLens OcuTec in the US Market), for soft contact lens care in a large "real practice" setting. METHOD This is an international multi-center, open-label assessment carried out in 10 countries across Europe and in the USA. Up to 10 subjects who were currently ...

BACKGROUND The aim of this study is to analyze the relationship between the self-reported symptoms and objective signs of dry eye disease in long-term rigid gas-permeable (RGP) or soft contact lens (SCL) wearers. SUBJECTS AND METHODS The study included 84 eyes of Caucasian RGP and SCL wearers between the age of 15 and 71 who wore contact lenses on a continuous daily basis for more than 1 year...

AIMS A case-control study was performed to evaluate soft contact lens (SCL) wear modality as a risk factor for microbial keratitis. METHODS Contact lens wearers presenting as new patients to Moorfields Eye Hospital accident and emergency department during a 12 month period completed a self administered questionnaire detailing demographic data and contact lens use habits. Cases were patients w...

introduction: some fungi such as aspergillus, alternaria, cladosporium and fuzadium can peneterate matrix of contact lens. alternaria is a saprop and a pathogen in plants which is rarely seen in human being. this paper reported one case of contact lens contamination with alternaria in human. case report: the patient is a 24 year old woman who had used contact lens for 7 months. since she was on...