Comparing two laser ablation techniques for eye surgery
Official title: Topography-guided vs. Wavefront Optimized Corneal Refractive Surgery: A Prospective Contralateral Randomized Double-masked Study
Run by 59th Medical Wing · NCT05037370 · Data updated 2026-11-12
This study is testing which of two laser eye surgery techniques, wave-front optimized or topography-guided, helps people see better after surgery.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 21 Years to 50 Years |
| Sex | All |
| Enrollment | 400 (estimated) |
| Sponsor | 59th Medical Wing Federal |
| Locations | 1 site (San Antonio, Texas) |
| Status | Recruiting |
| Started | April 22, 2021 |
| Main results expected | December 31, 2026 |
| Study ends | December 31, 2026 |
| Registry record updated | August 14, 2025 |
| Trial ID | NCT05037370 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are DOD beneficiaries aged 21-50 who meet the requirements for PRK or LASIK and can commit to follow-up visits.
✕Probably not a fit
Patients with prior ocular surgeries, significant anisometropia, or those desiring monovision treatment may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial is a prospective randomized contralateral double-masked study that aims to compare the visual outcomes of two different laser ablation techniques: wave-front optimized (WFO) and topography-guided (TG) during Photorefractive Keratectomy (PRK) or Laser-assisted in situ Keratomileusis (LASIK) surgery. Patients will be randomized to have one eye treated with WFO and the other with TG, allowing for a direct comparison of the effectiveness of these techniques. The study will involve a thorough preoperative evaluation and education, with a focus on optimizing visual outcomes and minimizing post-operative optical aberrations. The use of advanced technology, such as the VARIO Topolyzer, will help tailor the ablation pattern to individual patients.
Why it matters
Potential benefit: If successful, this study could lead to improved visual outcomes for patients undergoing refractive eye surgery.
How similar studies have gone: Previous studies have shown promising results with similar laser ablation techniques, suggesting potential for success in this approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Meet requirements for PRK or LASIK i.e., Stable \<= .5 D change MRSE) * DOD beneficiaries age 21-50 years * Local pts (w/i 60 mi) who will be in the area for at least 6 months post surgery * Willing to complete all required follow-up visits Exclusion Criteria: * No meeting requirements for PRK or LASIK * Desiring monovision treatment * Anisometropia \>2D spherical equivalent * Prior ocular surgeries / trauma / problem * History of dry eyes * Hyperopia * Mixed astigmatism * Inability to capture VARIO topolyzer scans * Pregnant (or who plans to be within 6 months after surgery) * Breastfeeding any time during the study * History of herpetic disease
Where it's running
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Joint Warfighter Refractive Surgery Center at WHASC
San Antonio, Texas, United States Recruiting
Study contacts
- Principal investigator: Charisma B Evangelista, Md — 59th Medical Wing
- Study coordinator: JOSE E CAPO-APONTE, OD, PhD
- Email: Jose.E.CapoAponte.ctr@health.mil
- Phone: 210-292-2554
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Corneal Biomechanical Measurements to Guide Refractive Surgery
This study tests whether measurements of corneal stiffness from a steady-state device can help tailor refractive surgery for people with nearsightedness or astigmatism.
-
Visual outcomes after cataract and refractive procedures
This project uses past clinical records to see how adults who had cataract surgery with an intraocular lens or refractive procedures fared in vision and refraction and to compare different IOLs and procedures.
-
0.05 D precision refraction to improve SMILE and FS‑LASIK vision
This project will try using very fine (0.05 diopter) refraction measurements before SMILE or FS‑LASIK for adults 18–40 to see if they get sharper vision after surgery.
-
Optimizing SMILE surgery for correcting vision problems
This study is testing if using a new system for SMILE eye surgery can help patients see better after the procedure compared to the traditional method.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.