Active clinical trials for "Cataract"

The investigators aim to compare the visual performance of the most recently introduced extended depth of focus intraocular lenses ; AcrySofTM IQ VivityTM and TECNIS SynergyTM ( an extended depth of focus IOL ) regarding the range of vision (using defocus curve ) , contrast sensitivity( through the modulation transfer function curves ) and their effect on ocular aberrations as the ivestigators believe that proper study of these aspects could influence the investigators choice and guidance to the cataract patient about the most suitable presbyopia correcting IOL .

The Hanita CleaRing device is an intraocular implant designed for inhibition of PCO leading to reduction in the Nd:YAG treatment rate. The device is implanted into the capsular bag after the extraction of the crystalline lens and prior to implantation of the IOL. The device is manufactured by Hanita Lenses from a hydrophilic acrylic co-polymer which is being used for the production of Intra-ocular lenses.

The primary objective is to determine possible implications of deviant tear film quality for optimal refractive precision in patients scheduled for cataract surgery. The study consist of three separate arms where cataract patients will be separated in to Dry Eye Disease (DED) positive and negative groups. The DED positive group will be further subdivided into two different treatment groups (with focus on prolonged use of lubricant and preservative free eye drops). Tear film samples will be taken before treatment, after treatment and after surgical treatment and compared.

A prospective, multicenter, randomized, single-masked, post-market clinical trial comparing cataract surgery in conjunction with ab-interno canaloplasty utilizing the iTrack Advance canaloplasty device (Nova Eye, Inc.) to cataract surgery only in patients with mild to moderate, primary open angle glaucoma. Subjects will be followed for 12 months.

Prospective, two-arm, randomized, bilateral, subject/evaluator-masked clinical study to evaluate the distance visual acuity, peripheral refractive error and functional vision of the EPV IOL compared to a standard monofocal control IOL.

The purpose of this study is to compare two different methods used during cataract surgery to remove the lens in the eye.

Rationale: In cataract surgery, fragmentation of a hard nucleus requires relatively much ultrasound energy. It is suspected that the level of energy used is associated with the degree of corneal endothelial loss. Recently, it was demonstrated that with miLOOP (Zeiss Meditec) assisted nuclear fragmentation ultrasound energy can be substantially reduced. Objective: To compare miLOOP assisted cataract surgery and conventional surgery with respect to the energy needed for phacoemulsification and loss of corneal endothelial cells. Study design: Randomized, controlled trial. Study population: Patients with nuclear cataract of a grade ≥ 5. Intervention: Microinterventional endocapsular nuclear fragmentation. Main study parameters: Cumulative dispersed ultrasound energy (CDE) and endothelial cell loss.

Approximately 60 participants at Eye Hospital of Wenzhou Medical University during October,2021 to January 2022 will be enroll in the investigators' study. And dived them randomly into 2 groups:High myopia with axial length between 26 mm and 28 mm and High myopia with axial length more than 28 mm (30 eyes) .

The purpose of the study is to assess whether PROKERA can sufficiently stabilize the ocular surface prior to cataract surgery and improve post operative outcomes patients with moderate to severe dry disease.

Comparison of the visual function and reading performance between the Acrysof IQ Vivity IOL, an EDOF IOL, and the monofocal Acrysof IQ.