The Effect of Capsulotomy Size on Effective Lens Position in Robotic Laser Cataract Surgery
Public ClinicalTrials.gov record NCT07856849. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
PRECISE - The Effect of Capsulotomy Size on Effective Lens Position in Robotic Laser Cataract Surgery
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
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.
Study identification
- NCT ID
- NCT07856849
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 20 participants
Conditions and interventions
Conditions
Interventions
- Femtosecond Laser Capsulotomy - Small Size (4.6 mm) Procedure
- Femtosecond Laser Capsulotomy - Large Size (5.6 mm) Procedure
Procedure
Eligibility (public fields only)
- Age range
- 40 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Oct 27, 2025 (Actual)
- Primary completion
- Mar 6, 2026 (Actual)
- Completion
- Mar 6, 2026 (Actual)
- Last update posted
- Oct 5, 2026
2025 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Twin Cities Eye Consultants, Coon Rapids, Minnesota 55433 | Coon Rapids | Minnesota | 55433 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT07856849, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Oct 5, 2026 · Synced Oct 8, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT07856849 live on ClinicalTrials.gov.