Active clinical trials for "Cataract"

The goal of this study is to evaluate subject outcomes and spectacle independence with intraoperative aberrometry and trifocal IOL implantation.

To investigate that VISTHESIA 1.5 is non-inferior to Provisc with regards to elevation in IOP greater than or equal to 30 mm Hg 6 ± 2 hours post-operatively as per methodology set out in EN ISO 15798:2013 (Primary Endpoint) To compare the changes in endothelial cell count and incidences of intraocular inflammation between VISTHESIA and Provisc as per methodology set out in EN ISO 15798:2013

In this prospective study , a cohort of 91 eyes with congenital cataract and 25 eyes normal eyes from Wenzhou medical university was erolled.91 eyes with congenital cataract was after lensectomy and anterior vitrectomy as test group, 25 normal eyes as control group. The a- and b-wave and PhNR related parameters was evaluated.

In this retrospective case series, the feasibility of performing phacoemulsification using slit illumination in eyes with corneal opacity was assessed.

The use of ocular biometers like IOLMaster 700, is a common practice to identify several ocular parameters such as the keratometry of the cornea and the axial length of the eye, which are necessary for calculating the power of the intraocular lens in cataract surgery. However, the additional use of other devices, such as Cassini and Pentacam is used to obtain more information of the central topography of the eye. Recently, a new version of the IOLMaster 700 equipment that provides much more detailed information than in its previous version has been presented. The objective of this study is to measure the time that the new IOLMaster 700 takes to perform these measurements of the central topography and compare it with the time it takes using the central topography using the standard IOLMaster 700 version with Cassini on one hand and Pentacam on the other. It is hypothesized that the use of the new version of the IOLMaster 700 equipment alone can reduce the time of measurements and improve the clinic workflow.

Retrospective study to provide clinical outcomes with DEXYCU (dexamethasone intraocular suspension) 9%.

The rationale of this study is to compare repeatability, reproducibility and agreement of three different AS-OCT devices and Pentacam. The investigational devices are approved biometry and keratometry devices to perform biometric/keratometric measurements preoperatively before cataract surgery. The measurements are used to calculate the needed IOL power. Measurements with all four devices will be performed 3 times consecutively by two trained observer. The order of the observer, the order of devices as well as the eye (left/right) is randomized. Examinations will be implemented in accordance with the approved investigational plan on subjects and includes: repeated biometry/keratometry with four different devices

Evaluate the long-term (>1 yr) outcomes of the Vivity IOL. The investigator will use similar measurements and procedures to the ones performed on these subjects during the FDA clinical trial.

The investigational device is an approved femtosecond laser (FSL) device with an integrated imaging system to perform certain steps of the cataract procedure. The FSL will perform anterior capsulotomy and lens fragmentation in individuals suffering from age-related cataract with need of cataract surgery. The laser will be reduced to image the Berger space. If not visible, the space will be enhanced with BSS and Volon A to visualize the BS. Cataract surgery will be performed in subjects who have signed an informed consent form. Macula thickness will be measured with Spectralis OCT on screening date. Postoperative examinations will be implemented in accordance with the approved investigational plan on subjects and includes: visual acuity, slitlamp examination and retinal oct imaging.

There is no difference of the photic phenomena in the two groups. The study will be a prospective non-randomised controlled study. The target is then to determine the equivalence in the glare. Assumption of Type I error is p=0.05 as level of significance and Type II error is alpha=0.8 as power.