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Showing 1–24 of 56 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: PRK Clear all
Not listed Phase 4 Interventional Accepts healthy volunteers

Anesthetic Impregnated Bandage Soft Contact Lens (BSCL) in Pain Management After Photorefractive Keratectomy (PRK)

NCT04283331
View directory record Official record
Conditions
Myopia, Hypermetropia, Refractive Errors, Astigmatism
Interventions
Proparacaine Ophthalmic
Drug
Lead sponsor
Beeran Meghpara, MD
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 5, 2021 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Epithelial Healing and Visual Outcomes Using Omega-3 Therapy Before and After Photorefractive Keratectomy (PRK) Surgery

NCT01059019
View directory record Official record
Conditions
Refractive Error
Interventions
Omega-3 Fatty Acid Supplements
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 28 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 20, 2013 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Initial Evaluation of Photorefractive Keratectomy in U.S. Army Personnel

NCT00413673
View directory record Official record
Conditions
Myopia
Interventions
PRK
Procedure
Lead sponsor
Walter Reed Army Medical Center
Federal
Eligibility
21 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2008
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 31, 2008 · Synced Sep 2, 2026, 5:28 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Bandage Contact Lenses for Corneal Abrasions

NCT03206723
View directory record Official record
Conditions
Corneal Abrasion, Eye Trauma
Interventions
Bandage contact lens, Eyedrop, Hydrocodone
Device · Drug
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Jan 31, 2018 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Prospective Evaluation of Contrast Sensitivity and Disability Glare in Refractive Surgery, a Sub-Study of: Initial Evaluation of Excimer Laser Keratorefractive Surgery in U.S. Army Personnel (WU # 2335-99)

NCT00413868
View directory record Official record
Conditions
Myopia
Interventions
LASIK, PRK, Small target contrast sensitivity and disability glare
Procedure · Behavioral
Lead sponsor
Walter Reed Army Medical Center
Federal
Eligibility
21 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 31, 2008 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Goblet Cell Response and Dry Eye Symptoms After PRK and LASIK

NCT00411827
View directory record Official record
Conditions
Keratoconjunctivitis Sicca
Interventions
PRK with conjunctival impression cytology before and after surgery, LASIK with conjunctival impression cytology before and after surgery
Procedure
Lead sponsor
Walter Reed National Military Medical Center
Federal
Eligibility
21 Years to 40 Years
Enrollment
146 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2016
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Phase 4 Interventional

A Comparison of Topical Nepafenac to Placebo in Corneal Epithelial Healing Times and Postoperative Pain Relief

NCT00330798
View directory record Official record
Conditions
Photorefractive Keratectomy
Interventions
nepafenac 0.1%, ketorolac 0.4%
Drug · Other
Lead sponsor
Alcon Research
Industry
Eligibility
19 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Nov 17, 2016 · Synced Sep 2, 2026, 5:28 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

A Comparison of Photorefractive Keratectomy (PRK), PRK With Mitomycin-C and Laser Subepithelial Keratomileusis (LASEK) in the Treatment of Moderate and High Myopia

NCT00415077
View directory record Official record
Conditions
MODERATE AND HIGH MYOPIA
Interventions
PRK, MMC PRK, LASEK
Procedure
Lead sponsor
Walter Reed Army Medical Center
Federal
Eligibility
21 Years and older
Enrollment
960 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2004
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jul 15, 2010 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Oral Gabapentin Versus Placebo for Treatment of Postoperative Pain Following Photorefractive Keratectomy

NCT00793910
View directory record Official record
Conditions
Postoperative Pain
Interventions
Gabapentin, placebo
Drug
Lead sponsor
Walter Reed Army Medical Center
Federal
Eligibility
21 Years and older
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jul 15, 2014 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Not applicable Interventional Results available

A Comparison of Pregabalin (Lyrica®) to Placebo in Pain Relief After Photorefractive Keratectomy (PRK) Surgery

NCT01097577
View directory record Official record
Conditions
Postoperative Pain
Interventions
pregabalin, Placebo
Drug
Lead sponsor
59th Medical Wing
Federal
Eligibility
21 Years and older
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Lackland Air Force Base, Texas
Source: ClinicalTrials.gov public record
Updated Oct 27, 2020 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The RESTORE Study, A Randomized, Controlled, Masked (Reading Center) Prospective Study

NCT04396990
View directory record Official record
Conditions
Refractive Surgery
Interventions
Dextenza 0.4Mg Ophthalmic Insert, Topical Prednisolone
Drug
Lead sponsor
Vance Thompson Vision
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated Jul 29, 2024 · Synced Sep 2, 2026, 5:28 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Comparison of Oral Gabapentin and Pregabalin in Postoperative Pain Control After Photorefractive Keratectomy

NCT00954187
View directory record Official record
Conditions
Postoperative Pain
Interventions
Gabapentin, pregabalin
Drug
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years to 70 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Jan 8, 2017 · Synced Sep 2, 2026, 5:28 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Bromday Versus Nevanac Eye Drops to Control Pain Following Photorefractive Keratectomy

NCT01475877
View directory record Official record
Conditions
Myopia
Interventions
Bromfenac
Drug
Lead sponsor
Virdi Eye Clinic
Other
Eligibility
21 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Rock Island, Illinois
Source: ClinicalTrials.gov public record
Updated May 2, 2016 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Phase 4 Interventional

Efficacy of Cyclosporine for the Prevention and Treatment of Dry Eye Symptoms Following LASIK or Photorefractive Keratectomy

NCT00349440
View directory record Official record
Conditions
Dry Eye Syndromes
Interventions
Cyclosporine, Refresh Plus
Drug
Lead sponsor
Innovative Medical
Industry
Eligibility
18 Years and older
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Greensboro, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 25, 2008 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Comparison of Fellow Eyes Undergoing LASIK or PRK With a Wavefront-guided Excimer Laser Versus a Wavefront-optimized Excimer Laser

NCT01135719
View directory record Official record
Conditions
Hyperopia, Myopia, Astigmatism
Interventions
LASIK and PRK
Procedure
Lead sponsor
Edward E. Manche
Other
Eligibility
21 Years to 60 Years
Enrollment
137 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2022
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 6, 2022 · Synced Sep 2, 2026, 5:28 AM EDT
Recruiting Phase 2 Interventional

Lacripep for Corneal Wound Healing Study

NCT06854393
View directory record Official record
Conditions
Corneal Epithelial Wound Healing
Interventions
0.00025% Lacripep ophthalmic solution and Placebo
Drug
Lead sponsor
Henry M. Jackson Foundation for the Advancement of Military Medicine
Other
Eligibility
21 Years to 55 Years
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Fort Belvoir, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Post Photorefractive Keratectomy (PRK) Use of an Eye Shield for Maintaining Vision and Mitigating Pain

NCT01592643
View directory record Official record
Conditions
Pain, Vision Nearsighted
Interventions
Eye Shield
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Dec 21, 2021 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Cannabinoid vs Opioid for Photorefractive Keratectomy Pain Control

NCT05477875
View directory record Official record
Conditions
Photorefractive Keratectomy, Myopia, Hyperopia
Interventions
oral cannabinoid, oral codeine/acetaminophen
Drug · Combination Product
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 65 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Aug 6, 2025 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Phase 2 Interventional Results available

Study of Efficacy and Safety of SAF312 Eye Drops in Subjects With Post-operative Corneal Induced Chronic Pain (CICP)

NCT04630158
View directory record Official record
Conditions
Chronic Ocular Pain
Interventions
SAF312 Placebo, SAF312
Other · Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
24
States / cities
Mission Hills, California • Newport Beach, California • Palo Alto, California + 19 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Sep 2, 2026, 5:28 AM EDT
Terminated Not applicable Interventional Results available

Topo-guided LASIK and Photorefractive Keratectomy vs Wavefront LASIK and Photorefractive Keratectomy

NCT03075176
View directory record Official record
Conditions
Surgery, Myopia
Interventions
Wavefront optimized LASIK, Wavefront optimized Photorefractive Keratectomy, Topography-guided LASIK, Topography-guided Photorefractive Keratectomy
Device
Lead sponsor
University of Utah
Other
Eligibility
21 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Murray, Utah
Source: ClinicalTrials.gov public record
Updated Jul 16, 2023 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Not applicable Interventional

Binocular Vision Anomalies After Cataract and Refractive Surgery

NCT03592615
View directory record Official record
Conditions
Binocular Vision Disorder, Refractive Errors, Cataract
Interventions
cataract surgery, Corneal refractive surgery
Procedure
Lead sponsor
Salus University
Other
Eligibility
18 Years and older
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Elkins Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 17, 2020 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Evaluate the TetraLens, a Tetracaine Releasing Therapeutic Bandage Contact Lens in Patients Undergoing PRK Procedure

NCT06085352
View directory record Official record
Conditions
Ocular Pain
Interventions
TetraLens bandage contact lens, Control Acuvue Oasys Bandage contact Lens
Drug · Device
Lead sponsor
Vance Thompson Vision
Other
Eligibility
22 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Wavefront-guided PRK vs Wavefront-optimized PRK

NCT02091934
View directory record Official record
Conditions
Myopia, Astigmatism
Interventions
Wavefront-guided PRK, Wavefront-optimized PRK
Procedure
Lead sponsor
Stanford University
Other
Eligibility
21 Years to 60 Years
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Dec 7, 2021 · Synced Sep 2, 2026, 5:28 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Post-operative Pain Control After Photorefractive Keratectomy Comparing Acetaminophen/Codeine vs Acetaminophen/Oxycodone

NCT04399122
View directory record Official record
Conditions
Post-operative Pain Control
Interventions
acetaminophen/codeine vs acetaminophen/oxycodone
Drug
Lead sponsor
59th Medical Wing
Federal
Eligibility
21 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Oct 4, 2021 · Synced Sep 2, 2026, 5:28 AM EDT