Active clinical trials for "Cataract"

Primary objective of this study is to evaluate the level of agreement of two keratometry modules, the IOLMaster and the Verion Reference Unit, in terms of keratometric values and IOL power calculation.

This study involved children with congenial cataract eyes, who underwent cataract surgeries at the Eye Hospital of Wenzhou Medical University (Hangzhou, China). All medical records were reviewed for primary diagnosis. All surgeries were performed by one experienced surgeon (Z.Y.E) and videos were collected for reviews in details. the clinical data after the surgery were also recorded for further analysis.

To assess the impact of surgeon experience on early postoperative central corneal thickness (CCT) in eyes that have undergone phacoemulsification-based cataract surgery.

This is a prospective, single center, non-comparative, 90-day follow-up, post-market clinical investigation of etacoat in patients undergoing cataract surgery. The performance is evaluated by the preservation of endothelial cells measured by specular microscopy at the follow-up visit in comparison to baseline values.

In this study, the investigators conducted a cross-sectional, face-to-face investigation to evaluate the behavioral and psychological disorders and the risk of ADHD among children with bilateral congenital cataracts using the Conners'Parent Rating Scale (CPRS) questionnaire, an assessment tool for screening ADHD that obtains parental reports of childhood behavioral problems in research and clinical settings.15-17 Age-matched children with normal vision and the Chinese urban norm were used as controls.

The objective of this study is to assess the spectacle independence of patients receiving the AcrySof® Panoptix® Intraocular lens (IOL) after uneventful cataract surgery.

On the day of surgery, the the eye with astigmatism of at least 0.75dpt receives a Vivinex XY1A , HOYA Surgical Optics GmbH and the second eye to be operated receives an XY1, HOYA Surgical Optics GmbH. A complete biomicroscopic examination and visual acuity testing using autorefractometer, will be performed 1 week (7-14days), 6 weeks (30-60days) and 5 month (4-6months) postoperatively.

Cataract surgery is the current standard of management for cataract patients, which is typically succeeded by a postoperative follow-up schedule. Here, the investigators established and validated an artificial intelligence system to achieve automatic management of postoperative patients based on analyses of visual acuity, intraocular pressure and slit-lamp images. The management strategy can also change according to postoperative time.

This study will provide a profile of blindness/visual impairment, avoidable blindness and cataract surgery service in Chaonan, mainland China. We also evaluate the diagnostic accuracy of Rapid Assessment of Avoidable Blindness (RAAB) comparison with conventional survey.

Few descriptive studies have focused on the anatomical parameters in patients with preexisting PCDs. The characteristics of cataract morphology and anatomical parameters in these patients remained unclear, when compared with CC patients with intact posterior capsule. We conduct the current study to compare the cataract morphology and preoperative parameters, including central corneal thickness, axial length, anterior chamber depth, lens thickness, corneal diameter, keratometry，dialated pupil diameter and intraocular pressure, between CC patients with preexisting PCDs and those with intact posterior capsule, and to explore potential risk factors for preexisting PCDs.