View clinical trials related to Cataract.
Filter by:In the current study, the investigators analyzed the surgical RWD of 2,421 children with childhood cataracts from the Childhood Cataract Program of the Chinese Ministry of Health (CCPMOH) at the Zhognshan Ophthalmic Center and proposed data-based clinical experience for the timings of cataract extraction and IOL implantation.
This real-life Health Economics and Outcome Research (HEOR) study will enable to evaluate the economic impact of Dropless therapy for the prophylactic treatment of inflammation and infection after routine cataract surgery. This prospective randomized controlled crossover open-label study will estimate resource utilization and cost attributable to patients' management following a cataract surgery and until last follow-up visit and adherence, satisfaction and preference between usual care and Dropless in a real-life setting. Data collected will include patients' characteristics and demographics, medical information, cataract surgery information, healthcare resource utilization, patients' adherence to topical ophthalmic medications as well as patients' satisfaction to both treatment and preference between usual care and Dropless. Patients will fill a set of questionnaires at their recruitment in the study and at their last follow-up visit for their two cataracts surgery.
Today, cataract surgery has become one of the safest and most effective eye surgical procedures performed on many people through the development and development of surgical techniques and instruments. However, a significant number of patients who underwent cataract surgery still complain about postoperative symptoms, such as irritation, pain, dryness, burning sensation, and foreign body sensation. The reasons of dry eye (DE) development after cataract surgery include thermal and light toxicity from the microscope, corneal epithelial damage, and frequent irrigation of ocular surface during operation, sterilization of conjunctival sac and eyelid with chemicals, transection of the corneal nerves by corneal incision, use of topical anesthetics, and preservatives in topical eye drops. In this era of high expectation of patients and premium intraocular lenses, the postoperative discomforts cannot be accepted to many patients. Several studies have recently reported that the common cause of postoperative symptoms of the patients is DE. Furthermore, if the ocular surface is deformed due to DE syndrome after surgery, the optical quality is greatly affected which results in a decrease of the quality of vision. If the tear film becomes irregular, the higher-order aberration can change due to local irregular total radius of curvature of ocular surface and result in decreased visual acuity. There have been many attempts to treat DE syndrome after cataract surgery. Artificial tears are commonly used for the first line treatment of postoperative DE and several studies revealed its effectiveness on management of DE symptoms and signs. The postoperative use of cyclosporine 0.05 % topical eye drop improved DE symptoms and visual quality after cataract surgery. Recently, diquafosol sodium ophthalmic solution has been used for the management of DE after cataract. Diquafosol is a dinucleotide derivative and functions as agonist to the purinergic P2Y2 receptor. Diquafosol is known to stimulate not only the mucin secretion from the goblet cells but also water secretion from conjunctival epithelial cells and accessory lacrimal glands. According to previous studies, diquafosol has been found to be very effective in treating DE after cataract and to alleviate symptoms of DE syndrome. Furthermore, several studies have shown that topical diquafosol has a better efficacy in managing DE after cataract surgery than artificial tears. The preservative free diquafosol ophthalmic solution has been released recently. The use of eye drops without preservatives has also been shown to play an important role in the treatment of DE after cataract surgery. Until now, there is no study that evaluated the effect of preservative free diquafosol ophthalmic solution. Thus the investigators try to investigate the efficacy of preservative free diquafosol ophthalmic solution compared to preservative containing diquafosol ophthalmic solution and sodium hyaluronate ophthalmic solution, which are widely used in patients with DE after cataract surgery.
Mydriatic eye drops are routinely used before phacoemulsification but they are not free of drawbacks. Several alternatives were tried to overcome their limitations.
This study will evaluate the utility of TrueTear™ to improve anterior corneal surface imaging quality before cataract surgery, refractive lens exchange, or laser refractive surgery.
The purpose of this study is to determine the safety and effectiveness of the IC-8 IOL implanted in one eye and a monofocal or monofocal toric IOL implanted in the fellow eye in accordance with the indication.
1. Develop a measurement protocol by OCT imaging and characterization of the anterior chamber change in glaucoma patients before and after surgery. 2. Show the effect of combined surgery in control of intra ocular pressure.
This study established and validated a universal artificial intelligence (AI) platform for collaborative management of cataracts involving multi-level clinical scenarios and explored an AI-based medical referral pattern to improve collaborative efficiency and resource coverage.The datasets were labeled using a three-step strategy: (1) categorize slit lamp photographs into four separate capture modes; (2) diagnose each photograph as a normal lens, cataract or a postoperative eye; and (3) based on etiology and severity, further classify each diagnosed photograph for a management strategy of referral or follow-up. A deep residual convolutional neural network (CS-ResCNN) was used for the image classification task. Moreover, we integrated the cataract AI agent with a real-world multi-level referral pattern involving self-monitoring at home, primary healthcare, and specialized hospital services.
Congenital cataract is the main cause of form deprivation amblyopia in children. Current studies confirm that form deprivation amblyopia affects the retinal nerve fiber layer. However, there are different opinions about the effect of amblyopia on the optic nerve fiber thickness around the optic disc at home and abroad. 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 retinal nerve fiber layer (RNFLT) and macular thickness (CMT) before and after surgery. Investigators dynamically observed changes in RNFL and CMT to explore the retinal mechanism of form deprivation amblyopia and help guide the clinical correct understanding of postoperative follow-up time.
This is a retrospective, nonrandomized comparative trial with historical control to investigate the safety and efficacy of a novel progressive grasping peripheral iridectomy (PGPI) surgical method in preventing aphakic angle-closure glaucoma (AACG) following congenital cataract surgery.