Related Experiment Video
Updated: Nov 4, 2025

05:46
Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
Published on: September 20, 2024
602
Clinical Outcomes With a New Continuous Range of Vision Presbyopia-Correcting Intraocular Lens
Summary
The TECNIS Synergy intraocular lens (IOL) offers a continuous range of vision after cataract surgery. Patients reported satisfactory outcomes, with high rates of good distance and near visual acuity.
Area of Science:
- Ophthalmology
- Biomedical Engineering
Background:
- Cataract surgery is a common procedure to restore vision.
- Presbyopia-correcting intraocular lenses (IOLs) aim to provide clear vision at multiple distances.
- Evaluating new IOL models is crucial for improving patient outcomes.
Purpose of the Study:
- To assess the clinical and patient-reported outcomes of a new presbyopia-correcting intraocular lens (IOL).
- To evaluate the efficacy of the TECNIS Synergy IOL in patients undergoing bilateral cataract surgery.
Main Methods:
- A prospective case series involving 103 patients (206 eyes) who received bilateral TECNIS Synergy IOL implantation.
- Phacoemulsification cataract surgery was performed.
- Visual acuity (high/low contrast), refractive error, defocus curve, and patient-reported outcomes (Catquest-9SF) were measured over 3 months.
Main Results:
- 96.1% of patients achieved 20/20 uncorrected distance visual acuity (UDVA) and 91.3% achieved 20/20 uncorrected near visual acuity (UNVA).
- A continuous range of focus was observed with a nearly flat defocus curve.
- Patient-reported outcomes significantly improved post-surgery.
Conclusions:
- The TECNIS Synergy IOL provides a continuous range of functional vision.
- Limited visual deterioration occurred under mesopic conditions, but outcomes were satisfactory with appropriate patient selection.
- This new IOL model demonstrates promising results for presbyopia correction post-cataract surgery.
More Related Videos
Related Concept Videos
Open Angle Glaucoma: Treatment
782
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
782
Angle Closure Glaucoma: Treatment
908
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
908
Glaucoma: Overview
1.0K
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
1.0K
Focusing of Light in the Eye
3.7K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
3.7K

