Active clinical trials for "Cataract"

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.

This study is to compare the rotational stability, visual outcome and patient satisfaction after implantation with either Liberty 677MTY, a multifocal diffractive-refractive IOL based on EPS technology manufactured by Medicontur Ltd. (Zsámbék, Hungary) or the multifocal toric IOL PanOptix®, manufactured by Alcon.

Cataract surgery is one of the most common procedures performed worldwide. Astigmatism is the most common refractive disorder in adults, hence there is a high prevalence of preexisting astigmatism in cataract patients. Access to astigmatism correction during cataract surgery allows for improved visual outcomes for patients. Toric intraocular lenses (IOLs) are the procedure of choice to correct corneal astigmatism of one diopter or more in cases undergoing cataract surgery. Rotational stability is a key factor for successful outcomes with toric IOLs. Postoperative toric IOL misalignment is the major factor responsible for suboptimal visual outcomes after toric IOL implantation. The TECNIS® Eyhance Toric II 1-piece posterior chamber lens is a new toric IOL which is FDA approved and CE marked. Marketed by Johnson & Johnson Vision, it is indicated for the visual correction of aphakia and pre-existing corneal astigmatism of one diopter or greater in adult patients with or without presbyopia in whom a cataractous lens has been removed by phacoemulsification and who desire reduction in residual refractive cylinder. No study assessing the early rotational stability of the TECNIS® Eyhance Toric II IOL has been published yet.

The objective of this study is to prospectively evaluate the visual parameters in a series of patients after phacoemulsification cataract surgery in a series of patients bilaterally implanted with the AcrySof® ReSTOR® Aspheric Intraocular Lens (IOL) Models SN6AD1 And SN6AD3.

This is a prospective, multi-center, masked, three-arm, randomized clinical study of the TECNIS Eyhance Toric II IOL (test #1) and TECNIS Synergy Toric II (test #2) compared to the TECNIS Toric 1-Piece IOL (control).

This study assesses the impact of two differing ocular hygiene regimens prior to cataract surgery. The first regimen includes an omega-3 supplement and the second without, and both include an at-home lid wipe and cleansing eye drops. These regimens will be assessed on microbial load, inflammation, tear osmolarity, and dry eye metrics. Patients will be randomized to either the omega-3 group + 3-part hygiene regimen, or the group with only the 3-part hygiene regimen. Data will be collected for inflammation through a test (InflammaDry) that measures an inflammatory marker, dry eye metrics via an imaging tool called Oculus 5M and the Canadian Dry Eye Assessment (CDEA) questionnaire, tear osmolarity through Tear Labs device, and area of growth for conjunctiva microbial load by swabbing the conjunctiva of the eye. Dry eye metrics (CDEA and Oculus 5M) will be collected during the patient's baseline appointment, 2-5 days prior to surgery, and post-operative month 1. Microbial load swabs will be collected at baseline, 2-5 days prior to surgery, and date of the surgery. An ocular assessment will also be completed at baseline, one week post-operation, and one month post-operation. All metrics will be compared to the fellow eye. The usage of omega-3 will be compared to the regimen without omega-3.

Retrospective collection of data from medical records, multicenter, post-market clinical follow-up study.

This study compares two intraocular lenses, the Softec HD and the Tecnis Z9002, used to replace the natural crystalline lens after cataract extraction. The variables compared include 1) the accuracy of targeted versus achieved refractive outcomes and 2) visual acuity outcomes three months after implantation.

The objective of this study is to evaluate the postoperative visual function of Taiwanese patients following bilateral or unilateral AcrySof Toric Intraocular Lens (IOL) implantation.

The purpose of this study is to evaluate visual outcomes, patient satisfaction and YAG capsulotomy rate after implantation of a multifocal toric lens- Liberty 677MTY - manufactured by Medicontur Ltd. (Zsámbék, Hungary),