PURPOSE To determine the in vivo efficacy and safety of a retroviral vector bearing an antiproliferative dominant negative mutant cyclin G1 (dnG1) construct, when used for the prevention of corneal haze after phototherapeutic keratectomy (PTK). METHODS For in vivo efficacy studies, a 6-mm-diameter, 150-microm-deep transepithelial PTK, performed with a clinical 193-nm ArF excimer laser (VISX S...

PURPOSE To report an unusual complication of treatment in the case of a Descemet's membrane detachment. METHODS Observational case report. RESULTS A 79-year-old woman presented for elective cataract surgery. Ocular risk factors identified preoperatively included moderately shallow anterior chambers bilaterally, previously treated with bilateral YAG peripheral iridotomies. After a clear corn...

Black carbon (BC) aerosol has been identified as one of key factors responsible for air quality in Beijing. BC emissions abatement could help slow regional climate change while providing benefits for public health. In order to quantify its variations and contribution to air pollution, we systematically studied real-time measurements of equivalent black carbon (eBC) in PM2.5 aerosols at an urban...

The visibility restoration of images is effected by various kinds of weather conditions like fog, mist, sandstorm, rain etc. This poor visibility will cause failure in the image processing applications like video surveillance, object detection, object recognition, intelligent transportation etc. The traditional visibility restoration will not requisitely restore the hazy images, because of the ...

1 PG Scholar , Paavai Engineering College, Namakkal, 2 M .E., Associate professor ,Department of ECE, Paavai engineering college,Namakkal Received 25 November 2015; Accepted 4 December 2015 ABSTRACT: Single image haze removal has been a demanding problem due to its ill-posed nature. Images captured in hazy weather environment often suffer from poor illumination conditions that will create a lot...

Purpose To evaluate corneal transparency following accelerated collagen cross-linking (ACXL) in pediatric keratoconus. Design A prospective interventional case series. Methods This study included 47 eyes (25 patients), aged 9-14 years, with documented progressive keratoconus. After applying 0.1% riboflavin drops, ACXL was performed. Assessment included corrected distance visual acuity (CDVA...

It has been argued that the anomalous emission from the region around the Galactic Center observed by WMAP, known as the WMAP Haze, may be the synchrotron emission from relativistic electrons and positrons produced in dark matter annihilations. In particular, the angular distribution, spectrum, and intensity of the observed emission are consistent with the signal expected to result from a WIMP ...

PURPOSE Corneal stromal haze cannot be compared in longitudinal studies or across laboratories without standardization. In this study, a method was devised of standardizing image brightness in confocal microscopy of the cornea. METHODS Thirty-six normal corneas of 18 untreated volunteers and 35 corneas of 18 patients 3 years after LASIK were examined by slit scanning confocal microscopy. The ...

INTRODUCTION The field of refractive surgery continues to evolve amid continued concerns as to which surgical technique minimizes the risk of inducing ectasia. PURPOSE To compare clinical outcomes between PRK, LASEK and Epi-LASIK in moderately to highly myopic eyes (-4.00 D to -8.00 D). MATERIALS AND METHODS A retrospective chart review of 100 PRK eyes, 100 LASEK eyes (with alcohol) and 97 ...