View clinical trials related to Cataract.
Filter by:This trial is designed to compare the biocompatibility and long-term visual outcomes of the Tecnis Z9001 and Acri.LISA 366D multifocal IOLs used for the treatment of senile cataract. The aim is to provide a safer biomaterial for senile cataract treatment, achieving better postoperative visual quality and fewer complications.
This study included patients who visit for refractive surgery (photorefractive keratectomy, photorefractive keratectomy with with corneal collagen cross linking, laser in situ keratomileusis, small incision lenticule extraction), phakic Intraocular Lens implantation (Implantable Collamer Lens, artiflex), and cataract surgery. Patients will be examined whether iris recognition scanner of smartphone works before and after surgery. In addition, before and after pupil dilation (5mm, 6mm, 7mm, 8mm), patients will be examined whether iris recognition scanner of smartphone works well.
Deep topical fornix nerve block anaesthesia is now a known form of nerve block for cataract surgeries by phacoemulsification. In this study the investigators intend to compare ropivacaine and bupivacaine in various parameters during phacoemulsification.
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.
Obtaining appropriate mydriasis prior to cataract surgery is an important variable in successful surgery. The current practice includes using topical anticholinergic and sympathomimetic agents in the preoperative area prior to cataract surgery, but the pupils are sometimes insufficiently dilated and can often need additional mydriasis with intracameral agents during cataract surgery. Pre-operative topical mydriatic drops take time to take effect, are mildly uncomfortable for the patient, and have a cost to the healthcare system. If intracameral mydriasis alone can achieve adequate pupil dilation, perhaps topical mydriatics would not be needed. The purpose of this study is to evaluate whether topical versus intracameral versus topical + intracameral mydriasis is the optimal way to dilate pupils during routine cataract surgery. The results of this study have implications for improving the efficiency and reducing time prior to cataract surgery. In addition, it has significant potential to reduce the cost associated with cataract surgery if preoperative drops can be eliminated.
It is a comparative study of Safety and Efficacy of Three Variants of Canaloplasty: ab-externo, ab-interno and minicanaloplasty. Combined With Phacoemulsification to Treat Glaucoma and Cataract. It is a Randomised, Prospective Study.
This study aims to demonstrate that presurgical assessement of patients' risk factors and surveillance during surgery, both performed by nurses, are not inferior to anesthetic team's care, concerning the rate of complications in cataract surgery with topical anesthesia. The nurse performs the triage of patients based on a chart of risk factors assessment. The triage, according to the presence or not of risk factors, leads to patients' care by an anesthetic team (medical anesthesist for pre-surgical assessement and anesthetic nurse for surveillance during surgery) or to patients' pre-surgical assessement and surveillance during surgery both performed only by nurses. In the control group, all patients are taken care of by an aesthetic team, with medical pre surgical assessement and surveillance during surgery both performed by anesthetic nurses.
In a randomized clinical trial, 30 eyes with traumatic cataract after open globe injury with IOL implantation underwent early and 30 eyes underwent late cataract surgery. We excluded patients who were under 12-year-old. All patients were visited at 1week, 4 weeks , 12 weeks and six months after surgery. In each visit, patients were examined regarding visual acuity, intraocular pressure (IOP), anterior chamber inflammation, IOL position and posterior synechiae. In addition, posterior segment evaluation and funduscopy were performed. Intraoperative complication including posterior capsular rupture, anterior vitrectomy and zonulysis as well as the site of IOL implantation were documented and postoperative complications including raised IOP, anterior chamber inflammation, visual axis opacity, posterior synechiae, subluxation of IOL, IOL pigment deposition were listed.
Femtosecond laser-assisted cataract surgery consists in nuclear lens fragmentation, followed by ultrasound phacoemulsification of nuclear lens, which is then removed. It can be assumed that fragmenting the nuclear lens in more pieces could facilitate the post-laser ultrasound phacoemulsification to extract the lens, with a lesser amount of ultrasonic energy. The decrease of ultrasonic energy delivered during cataract surgery is beneficial to the patient because it optimizes the vitality of corneal endothelial cells, which ensure corneal transparency.
To compare the effects of femtosecond laser-assisted cataract surgery (FLACS) and conventional phacoemulsification surgery (CPS) on subfoveal choroidal thickness (SFCT) in age-related cataracts.