Clinical Research Directory
Browse clinical research sites, groups, and studies.
The Effect of Capsulotomy Size on Effective Lens Position in Robotic Laser Cataract Surgery
Sponsor: Twin Cities Eye Consultants
Summary
The goal of this clinical trial is to learn whether the size of the opening made during laser-assisted cataract surgery affects where the artificial lens sits in the eye and the glasses prescription after surgery. This study includes adults aged 40 years and older who are scheduled to have cataract surgery in both eyes. Cataract surgery removes the cloudy natural lens of the eye and replaces it with a clear artificial lens, called an intraocular lens. The main questions this study aims to answer are: * Does the size of the capsulotomy (the circular opening made during surgery) affect the final position of the lens implant? * Does capsulotomy size affect vision or glasses prescription after surgery? Each participant will receive two different capsulotomy sizes, one in each eye. The size (big or small) used in each eye is chosen by chance. Both sizes are safe and commonly used during cataract surgery. All surgeries use a laser system that allows the opening to be made very precisely. Participants will: * Attend one study visit before surgery for eye exams and imaging * Undergo standard cataract surgery in both eyes using laser assistance * Attend one final study visit about 12 weeks after the second surgery for repeat eye exams and imaging Participants will receive the same type of lens implant and standard follow-up care whether or not they join the study. There is no direct benefit from taking part. The information learned may help doctors improve planning and accuracy for future cataract surgeries.
Official title: PRECISE - The Effect of Capsulotomy Size on Effective Lens Position in Robotic Laser Cataract Surgery
Key Details
Gender
All
Age Range
40 Years - Any
Study Type
INTERVENTIONAL
Enrollment
20
Start Date
2025-10-27
Completion Date
2026-03-06
Last Updated
2026-10-05
Healthy Volunteers
No
Conditions
Interventions
Femtosecond Laser Capsulotomy - Small Size (4.6 mm)
Femtosecond laser-assisted cataract surgery in which a smaller capsulotomy (4.6 mm) is created using the LENSAR ALLY laser system. The capsulotomy size is within standard clinical practice and is randomly assigned to one eye. All other aspects of cataract surgery, including intraocular lens implantation and postoperative care, follow routine clinical standards.
Femtosecond Laser Capsulotomy - Large Size (5.6 mm)
Femtosecond laser-assisted cataract surgery in which a larger capsulotomy (5.6 mm) is created using the LENSAR ALLY laser system. The capsulotomy size is within standard clinical practice and is randomly assigned to the contralateral eye. All other aspects of cataract surgery, including intraocular lens implantation and postoperative care, follow routine clinical standards.
Locations (1)
Twin Cities Eye Consultants, Coon Rapids, Minnesota 55433
Coon Rapids, Minnesota, United States