Background: Extracapsular cataract extraction (ECCE) with a posterior chamber intraocular lens (PC IOL) is the preferred method of cataract surgery in developed countries. However, intracapsular cataract extraction (ICCE) with an anterior chamber lens (AC IOL) may be appropriate in rural Africa. A randomised controlled trial was carried out to compare these surgical strategies. Methods: Partici...

BACKGROUND Extracapsular cataract extraction (ECCE) with a posterior chamber intraocular lens (PC IOL) is the preferred method of cataract surgery in developed countries. However, intracapsular cataract extraction (ICCE) with an anterior chamber lens (AC IOL) may be appropriate in rural Africa. A randomised controlled trial was carried out to compare these surgical strategies. METHODS Partici...

PURPOSE An unexplained clinical observation is the development of posterior capsular opacification (PCO), even when the central part of the posterior capsule has been removed. The purpose of this study was to investigate in vitro the mechanisms involved in the closure of the posterior capsulorrhexis in a capsular bag model. METHODS A sham extracapsular cataract extraction was performed in 71 ...

Human lens membranes contain the highest cholesterol content of any known biological membrane. Although cholesterol is prone to oxidation, the presence of its oxidation products in human cataract has not been shown before. This study was designed to investigate the presence of cholesterol oxides in human cataractous lenses. Human clear lenses (n = 48) were obtained from Coimbra University Hospi...

The ocular characteristics and responses were examined in patients who had undergone extracapsular cataract extraction (ECCE), intracapsular cataract extraction (ICCE) and penetrating keratoplasty (PKP) in one eye only. In each of the three groups, corneal sensitivity (the inverse of corneal touch threshold), oxygen uptake rate, and endothelial cell density were lower in the operated eye than i...

purpose : to determine the distribution of cataract surgery in iran between 2000 and 2005 methods : in a retrospective study based on files, cataract surgery centers were selected. between 2000 and 2005, one week of each season was selected randomly and all cataract surgery files of the center were studied. the surgeries were analyzed based on type, types of the lenses, intraoperative complicat...

The pathogenesis of age-related maculopathy (ARM), the most common cause of visual loss after the age of 60 years, involves a variety of hereditary and environmental factors. When the cataractous lens is removed and replaced by clear intraocular lens, a significant increase in ocular transmittance of optical radiation occurs. The aim of this study was to assess whether cataract surgery in older...

A new technique of local anesthetic administration has been used for 50 patients undergoing cataract extraction. The simple technique involves direct transconjunctival infiltration of local anaesthetic directly to the sub-Tenon's space, in the inferior-nasal quadrant, using a blunt 19-gauge Southampton cannula. This method seeks to avoid the risks of retrobulbar haemorrhage, perforation of the ...