View clinical trials related to Cataract.
Filter by:Congenital cataract is the main cause of form deprivation amblyopia in children. Current studies confirm that form deprivation amblyopia affects the macular development. However, there are different opinions about the effect of amblyopia on the macular thickness . Investigators have performed "cataract extraction with IOL implantation" on children with bilateral and unilateral congenital cataract. Investigators used OCT biometry to measure children's the macular thickness before and after surgery..Average sectional total thickness was automatically determined by the instrument's software using a modified Early Treatment Diabetic Retinopathy Study (ETDRS) circle grid (fovea, inner ring, and outer ring: 1 mm, 3 mm, and 6 mm. Investigators dynamically observed changes in macular to explore the retinal mechanism of form deprivation amblyopia and help guide the clinical correct understanding of postoperative follow-up time.
To evaluate the effect of bilateral cataract surgery with intraocular lens implantation on the daily activity levels of elderly patients.
Justification. Fuchs' corneal endothelial dystrophy (FECD) is one of the main causes of corneal transplantation. In many cases, the corneal decompensation derived from this dystrophy is triggered as a consequence of cataract surgery, so the dilemma of facing isolated cataract surgery or combined with endothelial keratoplasty is often raised. Objective. The present study aims to evaluate and select the most important predictive factors for corneal decompensation after cataract surgery in patients with FECD. Method. Prospective observational study of the preoperative and intraoperative variables presumably associated with postoperative corneal edema requiring Descemet stripping endothelial keratoplasty (DMEK). Consecutive candidates for cataract surgery with FECD will be selected and anterior segment imaging will be performed, along with a complete ophthalmological examination. Clinical, pachymetric, tmographic, densitometric, specular microscopy, and intraoperative variables will be registered.
The purpose of this research is to compare the effectiveness of bevacizumab (Avastin) with another a dexamethasone implant (Ozurdex), with respect to anatomic and visual outcomes as well as injection frequency in subjects undergoing cataract surgery with a concurrent diagnosis of diabetic macular edema (DME).
Clinical trial with medical devices, post-authorization, parallel, single-blind, randomized, comparative, prospective to study how afects the quality of life the use of ocular eye drops on patients with dry eye symptomatology and age-related loss of visual acuity. Secondary purposes: efects on the dry eye symptomatology, efect on visual acuity and treatment adherence.
The investigators aim to evaluate how different timing of anti-VEGF intravitreous injections affect visual acuity (BCVA) in patients with diabetic macular edema who are undergoing cataract surgery; and to evaluate how different timing of anti-VEGF intravitreous affect OCT CSF thickness and total number of postoperative injections in patients with diabetic macular edema who are undergoing cataract surgery.
To compare the safety and efficacy of a new multi-functional cataract-assisted surgical instrument with that of traditional cataract-assisted surgical instrument in cataract surgery with subluxation of lens.
This study is a prospective, observational, randomized, controlled, paired eye, subject-masked design.
This study is a prospective, randomized, controlled, paired eye, subject-masked design.
Primary aim of the study is to determine whether a rho kinase inhibitor, Netarsudil, can speed corneal clearance after DWEK. Secondary aim of the study is to investigate whether patient factors, such as baseline age, pachymetry, or endothelial cell count influence response to Netarsudil.