View clinical trials related to Cataract.
Filter by:A good efficacy as well as good rotary stability is expected with the ocular implant.
The aim of this study is to describe the outcomes of phaco-DMEK (Descemet Membrane Endothelial Keratoplasty ) according to a sequential versus a combined procedure
The purpose of this study is to clinically confirm the rotational stability of a modified AcrySof IQ toric intraocular lens (IOL) in a Japanese population.
Prospective, randomised, controlled, single-surgeon, single-center post-market clinical follow up study to compare the clinical outcomes of two trifocal IOLs with different material
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.
To observe the clinical characteristics and surgical treatment of 24 cases of congenital cataract complicated with Persistent Fetal Vasculature (PFV) in 28 cases of congenital cataract in our hospital.
To study the correlations among the dysfunctional lens index (DLI), Lens Opacities Classification System III (LOCS III) nuclear opalescence grading score, preoperative corrected distance visual acuity (CDVA), the objective scatter index (OSI) and Scheimpflug based average lens density in age-related cataracts. To investigate the potential of the DLI as a novel surgery decision maker via the Operating Characteristic (ROC) curve analysis.
The prevalence of idiopathic epiretinal membranes (ERM) in people over 50 is estimated at 6 to 19%. Even though most cases show very few symptomats, they may induce alterations of the underlying retina and lead to visual impairment likely to greatly diminish quality of life in patients. Thanks to the ever-improving quality of vitreo-retinal surgery, ablation of these membranes is a frequent and safe procedure allowing a functional gain in the majority of cases. Given the increasing prevalence in the population concerned and the accelerated ageing of the lens after vitrectomy, cataract surgery is often associated with removal of the membrane. On the basis of a study in 142 patients, it was possible to identify clinical and morphological prognostic factors and to inclure them in a score to assess the chances of complete functional recovery at one year following the procedure . Age of the patient, the duration of symptoms, initial visual acuity and the quality of the junction between external and internal segments of photoreceptors in optic coherence tomography (OCT) appeared as significantly related to visual results. Using this score in a new prospective cohort would allow the investigators to make it a reliable and easy-to-use tool at the service of ophthalmologist surgeons and their patients and would provide scientific confirmation of the interest of earlier surgery in this disease. It would also allow the investigators to define in a validated and reproducible manner, a threshold for an ndication for ERM surgery, which is currently based on relatively subjective criteria mostly related to visual acuity.
cataracts could be cured with eye drops. Some studies reported that in chronic renal failure, the occurrence of cataract is rare and the mechanism is unknown. The aim of this research is to describe correlation between urea concentration in the serum and aqueous humor and development of age related cataract.
A. The primary purpose of the study is to evaluate outcomes of aphakic eyes implanted with the IC-8 IOL following cataract removal in prior inlay patients after KAMRA inlay removal. B. The secondary purpose of the study is to determine whether there are any changes in biometry measurements before and after the inlay removal and how the changes affect the calculated IOL power.