View clinical trials related to Cataract Surgery.
Filter by:The aim of this study is to compare Mydrane ®, mydriatic eye drops and Mydriasert ® in terms of pupil site stability, surgical time, visual field and anterior chamber configuration modifications among primary open angle glaucoma (POAG) patients during cataract extraction surgery.
The goal of this retrospective study is to quantify the physiological lens tilt of the phakic eye. The main question it aims to answer is: -What influence does misalignment or tilting of IOLs have on visual quality? Preoperative biometry data are compared with anterior segement OCT data. Measurements were obtained using high-resolution swept-source optical coherence tomography. The influence of biometric measurements on tilt is analyzed.
ABSTRACT Objective: The research was conducted as a prospective randomized controlled experimental study to determine the effect of hand massage applied before cataract surgery on anxiety, surgical fear, pain and physiological parameters of patients. Study design: The sample of the study consisted of 60 patients, 30 experimental and 30 control, who had cataract surgery and met the study criteria in Eye Operating Room of a tertiary hospital between 24 December 2020 and 31 May 2021. Ethics committee, institutional permission and participant consent were obtained in this study, and data were collected using the descriptive characteristics form, Physiological Parameters Observation Form (PPOF), VAS-Anxiety, Surgical Fear Scale (SFS), and VAS-Pain scale. In the study, individuals in the experimental group were given hand massage for 10 minutes before cataract surgery. Before and after hand massage, PPOF, VAS-Anxiety and SFS were measured and recorded. In addition, PPOF, VAS-Anxiety and VAS-Pain were measured and recorded again at the postoperative 30th minute. Pearson chi-square, Shapiro Wilk, Levene test, Two-Way Analysis of Variance in Repeated Measurements, Mann-Whitney U test were used in the analysis of the data.
The world health organization declared corona virus disease (COVID19) a pandemic since march 2020. Since then the future landscape of medical practices and procedures is being heavily shaped by the emergence of this pandemic. COVID 19 testing has already standardized within the medical field as doctors wearing scrubs or fitness examination before operation. We are now more than 2 years into COVID-19 pandemic with more than 6 effective vaccines available in the market for public to boost and build up their immunity against the virus. Every 3 to 4 months we hear about a new strain and another wave of the virus attacking the world, therefore healthcare institutions face enormous challenges in balancing patients' needs and simultaneous safety to health care workers. The Indian council of medical research in June 2020 proposed that testing for Covid-19 for asymptomatic patients coming for elective surgeries should be performed for neurosurgery, ear nose, and throat (ENT) surgery, dental procedures, etc. and for non-surgical interventions like bronchoscopy, upper gastrointestinal endoscopy and dialysis. A role of preoperative testing of Covid-19 for every patient is still controversial especially in asymptomatic healthy patients with not known exposure to a COVID positive patient. Most patients attending eye out patient department (EOPD) are aged 65y and older are considered at a higher risk for worse outcome in case of COVID-19 infection. Therefore a rethink of a cataract surgery pathway should include preoperative perioperative and postoperative care in order to maintain safety conditions for patients and for healthcare staff. COVID-19 can infect anyone and result in transmission of infection before the patient become symptomatic or even without ever developing symptoms. Therefore preoperative screening of patients undergoing ophthalmic surgery should be considered.
This study is a Pre-market first-in-man clinical investigation to validate performance of a hand-held femtosecond laser named CATSYS.
The aim of this prospective study was to investigate whether non-fasting recommendation could reduce preoperative anxiety level, incidence of anesthetist interventions, and number of surgical complications in elective cataract surgery patients.
Each new generation of phacoemulsification system has aimed to optimize the control of fluidics and the delivery of energy during phacoemulsification. Nicoli CM et al., (J Cataract Refract Surg 2016;42:157-162) suggested a better anterior chamber stability when using an active fluidics system. Malik PK et al., (Eye and Vision 2017;4:22) showed that using an IOP based phacoemulsification system in association with the use of an Intrepid balanced tip provides a reduction in CDE (Cumulated Dissipated Energy and EFU (Estimated Fluid Usage). It has also been shown that a lower CDE provides obvious benefits: less endothelium cells damages and lower complication rates (Mady MA et al., Clin.Ophthalmol. 2012; 6:503-10). The latest technologies, i.e. the Active Sentry Handpiece and Hybrid tips, have been introduced to further improve the safety of phacoemulsification. The Active Sentry system has moved pressure sensors closer to the operated eye, hence further reducing the risk of surge during procedures. (Thorne A et al. Phacoemulsifier occlusion break surge volume reduction, J Cataract Refract Surg. 2018;44:1491-1496). The Hybrid tips have been designed to prevent posterior capsule rupture in the event of contact with the capsule. This new technology allows phacoemulsification procedures under reduced infusion pressures and a "high-vacuum - low energy" strategy which may lead to a safer procedure. Data from this study will try to demonstrate that cataract surgeries with Active Sentry will need less CDE and therefore may be safer, due to the surge effects decrease. This CDE parameter will be analysed according to differents subgroups: Presence of hybrid tip or balanced tip, cataract score based on the WHO nuclear grading recommendation (Thylefors B et al., (2002) The WHO Cataract Grading Group, Ophthalmic Epidemiology, 9:2, 83-95) The recent experiences conducted in real world condition in different sites have suggested that Centurion with AS was able to improved settings: maximum vacuum and UltraSound (US) time reduction and as a consequence a 20 to 30% CDE reduction.
Laser-assisted cataract surgery is a common and precise procedure done to remove cataracts from the eye. This procedure involves putting on a suction cup that applies a mild vacuum seal around the eye to stabilize the eye during the laser procedure. This suction cup often causes some bleeding under the conjunctiva around the eye which takes a few days to disappear. The purpose of this study is to test the use of a well-known eye medication (normally for treating glaucoma) called Brimonidine tartrate 0.15% (or Alphagan-P) in patients having laser-assisted cataract surgery. The use of Brimonidine to reduce bleeding under the conjunctiva is investigational, which means it has not been approved by Health Canada for use outside of research studies like this one. This study will see if Brimonidine will help to reduce bleeding under the conjunctiva in patients having laser-assisted cataract surgery.
This research will evaluate the efficacy of Omidria and Dexycu, Omidria and Dextenza, and Omidria and prednisolone acetate 1% in the resolution of post-operative inflammation and pain following cataract surgery.
Examination of the accuracy of toric predictive power in patients with 1.5 diopters of astigmatism or less.