View clinical trials related to Cataract Surgery.
Filter by:This study will be conducted to evaluate effects of different modes of ventilation on pediatric cataract surgery aiming to a peri-operative stable anesthesia, better surgical satisfaction and post operative recovery. It is hypothesized that controlled ventilation without muscle relaxation will be advantageous to other modes in providing adequate surgical satisfaction with considerable depth of anesthesia and better recovery profile.
Prospective survey study of patients who previously underwent cataract surgery with the Alcon PanOptix or PanOptix Toric intraocular lens in both eyes.
The hypothesis of this trial is that listening to music will decrease the stress levels that patients face as evidenced by their STAI scores, salivary cortisol levels and intra-operative autonomic parameters.
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.
This prospective, single center, non-comparative, 90-day follow-up, post-market clinical investigation of etafill in patients undergoing cataract surgery. The performance is measured by the preservation of endothelial cells measured by specular microscopy at the follow-up visit in comparison to baseline values.
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.
Phacoemulsification in eyes with a shallow anterior chamber (ACD < 2.2mm) presents with problems of safe access to the cataract and increased vulnerability of the endothelium and a higher tendency of complications such as descemet's detachment and iris prolapse. A shallow anterior chamber is also responsible for the high incidence of glaucoma and postoperative complications after cataract surgery. Femtosecond assisted cataract surgery has made cataract surgery safer and more predictable. The effective phacoemulsification time and intra-operative manipulation is greatly reduced in FLACS. However phacoemulsification still remains the most widely performed cataract surgery around the world. Post-operative outcomes after phacoemulsification in patients having shallow anterior chamber have been extensively reported in literature over the years. There is no head to head comparison in terms of intraoperative performance and post-operative outcomes between FLACS and phacoemulsification in eyes with shallow anterior chamber. The aim is to compare the intra-operative performance and post-operative outcomes in eyes undergoing femtosecond laser assisted cataract surgery versus eyes undergoing phacoemulsification in eyes having shallow anterior chamber. The study will bring an understanding on the question: Do patients undergoing Femtosecond laser assisted cataract surgery behave differently from those undergoing phacoemulsification?
This is a bilateral randomised controlled study to compare visual performance, refractive outcome, forward light scatter, patient satisfaction and objective measurement of glistenings following insertion of two monofocal, aspheric, hydrophobic acrylic intraocular lenses (IOLs). A new product is compared with an established one.
This is a randomized controlled trial to investigate the effect of cataract surgery on the socioeconomic status of cataract patients in rural area of Southern China.
This study will measure the dynamic real-time intraocular pressure (IOP) in the anterior chamber during standard phacoemulsification surgery. What is known: - Fluidics control is determined to be one of the primary drivers of physician decision making in choosing phacoemulsification equipment. - Active pressure system fluidic control has a perceived and possibly real (based upon recent literature) improvement in intra-cameral IOP stability and reduced pressure fluctuations. - Improved fluidics can allow for reduced dynamic IOP fluctuations, in-the-bag positioned phaco tip, and intra-cameral fluid flow all of which will likely improve corneal health post-operatively.