Active clinical trials for "Cataract"

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.

Patient satisfaction and dry symptoms in patients undergoing routine uncomplicated cataract surgery in NHS patients treated with prophylactic phosphate-free, preservative-free lubricant eye drops (0.3% cross linked sodium hyaluronate, AEONTM Protect Plus and0.15% Sodium Hyalu-ronate with vitamins A and E, AEONTM Repair): A randomized, prospective, controlled study.

Primary objective of this study is to compare two presbyopia correction surgical techniques, specificaly premium monovision, in which the dominant eye is corrected with an extended depth of field intraocular lens and the non-dominant eye with a trifocal diffractive intraocular lens, and the bilateral implantation of trifocal diffractive intraocular lenses.

Aim of this study is to assess whether a high-resolution scan of the crystalline lens before surgery may be helpful in predicting post-operative capsule bag diameter.

This study is a 3-month, prospective, up to 2 center, bilateral, randomized subject masked clinical evaluation of a monofocal intraocular lens (IOL) when both eyes are targeted for emmetropia and when the non-dominant eye is targeted for mini monovision (-0.75 D) in patients with or without astigmatism undergoing routine cataract surgery.

Primary objective of this study is to identify the optimal task lighting conditions (in terms of light intensity and light temperature) for 10 activities of daily living (ADLs) that require near or intermediate vision acuity in a validated ADL simulation framework for a sample of patients who underwent presbyopic correction with bilateral multifocal intraocular lenses (IOLs) implantation, and to compare their capacity to perform ADLs (ADL scores) between three study groups (SG): SG1. patients implanted bilaterally with trifocal diffractive IOLs, SG2. patients implanted bilaterally with bifocal hybrid (diffractive-refractive) IOLs, SG3. patients implanted bilaterally with monofocal IOLs

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 prospective, multicenter, bilateral, non-randomized, open-label, comparative, 6-month clinical study conducted at up to 50 sites in the USA.

Abstract Purpose: To evaluate the visual performance and rotational stability of the Tecnis Toric one-piece IOL (AMO, USA) during the first 3 post-operative months Design: Prospective single center study Setting: VIROS - Vienna Institute for Research in Ocular Surgery, a Karl Landsteiner Institute, Hanusch Hospitel, Vienna, Austria Methods: In this prospective study patients with age-related cataract and corneal astigmatism of 1.0 to 3.0 D measured with the IOL-Master 500 (Carl Zeiss Meditec AG, Germany) were included. Pre-operatively, rotating Scheimpflug scans (Pentacam HR, Oculus, Germany) were performed and the cornea was marked in the sitting position at the slit lamp. Patients recieved a single-piece toric hydrophobic acrylic IOL (Tecnis Toric, AMO, USA). Immediately and 3 months after surgery retroillumination photographs were taken to assess the rotational stability of the IOL. Additionally, Autorefraction (Topcon, USA), subjective refraction, uncorrected and distance corrected visual acuity, keratometry, Scheimpflug and ocular wavefront (WASCA, Carl Zeiss Meditec AG, Germany) measurements were performed at the 3 months follow-up.

To evaluate the incidence of IOL vaulting (ie, position change) of the Trulign™ Toric IOL following cataract surgery.