View clinical trials related to Cataract.
Filter by:The investigators aim to investigate the impact of mandating on-site pre-admission testing on cataract cancellation rates in a randomized, prospective, intervention study. Cataract extraction is the most commonly performed ocular surgery making surgical training an integral component of ophthalmology residency. Patient cancellation of surgery results in a financial burden to the institution and a loss of essential educational experiences for the residents. An earlier study explored variables impacting cancellation rates and identified incomplete pre-admission testing as a major contributing factor to surgery cancellation. Patients will be randomized to either 1) the intervention group where on-site pre-admission testing will be mandated or 2) the control group, where on-site pre-admission testing will be offered but not mandated. Cancellation rates will be collected prospectively and statistical analysis utilized to evaluate the significance of intervention.
Rapid advances of cataract surgery techniques and intraocular lens (IOL) technology have enabled the transition of cataract surgery from blindness relief to refractive correction. An ideal IOL is the critical component to achieve the refractive target of cataract surgery. Biocompatibility, rate of posterior capsule opacification (PCO) and visual quality have all been suggested as the critical factors of an ideal IOL and widely investigated. Recently, stability of IOL position has also been suggested as one of those critical factors due to its close correlation with postoperative visual function. Data suggests that IOL forward movement of 0.29 mm along the visual axis is associated with -0.4D myopic shift. Wang and colleagues recently reported that 0.5mm decentration of an aspheric IOL could eliminate its aberration-correcting effect. Poor stability could even lead to IOL exchange, an additional surgery that put both surgeons and patients in pain. As the supporting element of an IOL, the haptics are crucial to keep the IOL in place. Various haptic designs are being compared in terms of position stability of IOLs. Haptic designs of single-piece versus 3-piece are often compared because they are currently the most commonly used types. Single-piece IOLs have soft and broader haptics which are made of the same material as the optic, usually hydrophobic or hydrophilic acrylic, whereas 3-piece IOLs have rigid haptics which are made of poly methyl methacrylate (PMMA). Clinical studies comparing these haptic designs have yielded controversial results regarding their position stability in the capsular bag, which is the most recommended site for IOL fixation in an uneventful cataract surgery.
The purpose of this study is to record and analyze the profile and outcome of cataract patients receiving phacoemulsification (phaco) and artificial intraocular lens (IOL) implantation with or without femtosecond laser-assisted cataract surgery (FLACS) in Indian tertiary medical centers.
To compare refractive outcomes and patient's visual quality after bilateral cataract surgery when implanting multifocal intraocular lens, monofocal with monovision or hybrid monovision.
A cataract is a clouding of the crystalline lens inside the eye, which leads to a decrease in vision. It is the most prevalent, treatable cause of visual impairment and blindness in the world. Cataract surgery with an intraocular lens (IOL) implant is one of the most common and thought to be the most effective surgical procedure in any field of medicine. In this trial, the investigators aimed to evaluate the effect of cataract surgery on circadian rhythm and sleep as well as the effect of the blue light transmission characteristics of the implanted IOL on sleep.
This study is a single-center, prospective, randomized, controlled trial. To investigate if preoperative using of eye patch will decrease emergence agitation, and to provide a better method of decreasing emergence agitation to pediatric ophthalmic anesthesiologists.
The goal of this study is to determine the safety (but not efficacy in preventing infection) of sterile-packaged and pre-loaded injectable solutions of both vancomycin and moxifloxacin at certain dosages and concentrations as prepared by a compounding pharmacy when used intracamerally at the time of cataract surgery.
Congenital cataract is an important treatable cause of visual handicap in childhood throughout the world. Successful management of childhood cataract is dependent on individualized treatment strategies and rigorous postoperative supervision for adverse complication. In this trial, we aimed to compare the difference of postoperative outcome between surgical timing at age of 3 month and 6 month. Patients enrolled into the study will be followed for two year and will have study visits at 1 day, 1 week, 1 month, 3 month, 6 month, 9 month, 12 month, 18month and 24month postoperatively.
This study will examine patient satisfaction and spectacle independence using a survey in patients who have undergone uncomplicated cataract surgery with a presbyopia-correcting lens at least 2 years prior to administration of the survey.
The purpose of this study is to evaluate superior efficacy of DE-108 ophthalmic solution to that of Levofloxacin 0.5% ophthalmic solution as well as safety of the former used for perioperative bacteria eradication in patients who are scheduled for cataract surgery.