Active clinical trials for "Cataract"

This study will use images of the subjects' corneal endothelium obtained using non-invasive specular microscopy to obtain corneal endothelial cell density, the coefficient of variation in endothelial cell size, and the percentage of hexagonal endothelial cells following routine cataract surgery performed using the standard method of manual capsulorhexis compared to cataract surgery performed using Zepto Precision Capsulotomy System.

The purpose of this study is to evaluate the long-term visual outcome of the cataract surgery using a large-scale and comprehensive database of high myopic cataract and age-related cataract patients. The investigators will further investigate into the various genetic and environmental factors that may contribute to the pathogenesis of high myopic cataract.

To evaluate visual outcomes, in-the-bag placement and patient satisfaction in patients implanted with either Clareon monofocal or Clareon monofocal toric IOLs with the Monarch IV inserter and targeted for emmetropia.

To evaluate spectacle independence and patient satisfaction and visual outcomes after bilateral PanOptix implantation in patients with previous multifocal contact lens experience.

The objective is to assess the efficiency (as measured by phaco time, aspiration time, and fluid use) of the hybrid tip in removing cataract grade 3 & 4 in high and low intraocular pressure (IOP) settings.

The objective is to assess the efficiency of the Active Sentry handpiece at low intraocular pressure (IOP) compared with the Ozil at high IOP.

The purpose of this study is to investigate the anterior and posterior structure and functional changes and vascular alterations when performing phacoemulsification at high IOP vs low, more physiological IOP using Centurion® Vision System with Active Sentry® handpiece. These devices are approved by the US Food and Drug Administration (FDA).

This study included cataract patients who underwent toric intraocular lens (IOL) implantation, which aimed to evaluate the stability and clinical visual quality of toric IOLs.

The aim of the study is to compare the agreement and repeatability of ocular biometric parameters obtained using three swept-source optical coherence tomography (ss-OCT) device (Argos, IOLMaster 700 and ANTERION). This is a prospective, single centre study, that would include a number of 50 eyes of 50 patients, which attend pre-surgical examination. Three measurements per biometry device will be performed on the day of the first eye surgery. The measurements will be performed in a randomised fashion with three ss-OCT devices (IOLMaster 700, Argos and ANTERION). Inclusion criteria are: 40 years or above, age-related cataract, 20 eyes with AL< 22.0 mm and 30 eyes with AL>25.5 mm. Exclusion criteria are: patients with ocular or systemic pathologies that would interfere with the measurements (e.g. dense cataract, corneal pathology, nystagmus). The main outcome of the study will be: the difference (Limits of agreement) between the devices for the following parameters: keratometry (Ks, Kf, Km), CCT (µm), ACD (mm), LT (mm), AL (mm). Secondary outcomes will be: repeatability coefficient and coefficient of variation between the three device, measurement time for each device, and the feasibility for the Argos device.

The objective is to assess refractive accuracy of the Alcon Vision Suite (with Argos biometer) following Clareon PanOptix and AcrySof Vivity IOL implantation.