{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractive+Error+Correction",
    "query": {
      "condition": "Refractive Error Correction"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 45,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractive+Error+Correction&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T18:17:23.568Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT04599933",
      "title": "An Evaluation of the Efficacy and Safety of CSF-1 in the Temporary Correction of Presbyopia (NEAR-1)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "CSF-1",
          "type": "DRUG"
        },
        {
          "name": "Vehicle",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Orasis Pharmaceuticals Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "45 Years to 64 Years"
      },
      "enrollment_count": 309,
      "start_date": "2020-10-18",
      "completion_date": "2022-02-19",
      "has_results": true,
      "last_update_posted_date": "2024-04-04",
      "last_synced_at": "2026-07-23T18:17:23.568Z",
      "location_count": 17,
      "location_summary": "Sun City, Arizona • Glendale, California • Los Angeles, California + 14 more",
      "locations": [
        {
          "city": "Sun City",
          "state": "Arizona"
        },
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Fort Myers",
          "state": "Florida"
        },
        {
          "city": "Mt. Dora",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04599933"
    },
    {
      "nct_id": "NCT06567834",
      "title": "Clinical Evaluation and Comparison of the Tecnis Symfony Optiblue and Tecnis Symfony IOLs",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cataract",
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "Tecnis Symfony Optiblue/Tecnis Symfony Optiblue Toric (Models ZXR00V/ZXW150)",
          "type": "DEVICE"
        },
        {
          "name": "Tecnis Symfony/Tecnis Symfony Toric (Models ZXR00/ZXT150)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Empire Eye and Laser Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2022-03-21",
      "completion_date": "2023-03-09",
      "has_results": false,
      "last_update_posted_date": "2024-08-23",
      "last_synced_at": "2026-07-23T18:17:23.568Z",
      "location_count": 1,
      "location_summary": "Bakersfield, California",
      "locations": [
        {
          "city": "Bakersfield",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06567834"
    },
    {
      "nct_id": "NCT01193231",
      "title": "A 6 Month Study to Evaluate the Safety, Analgesic Efficacy of ACUVAIL™ (Ketorolac Tromethamine Ophthalmic Solution) 0.45%, in Post-PRK Corneal Wound Healing",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Must be PRK Candidate"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Durrie Vision",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 10,
      "start_date": "2010-08",
      "completion_date": "2011-04",
      "has_results": false,
      "last_update_posted_date": "2012-02-14",
      "last_synced_at": "2026-07-23T18:17:23.568Z",
      "location_count": 1,
      "location_summary": "Overland Park, Kansas",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01193231"
    },
    {
      "nct_id": "NCT00320593",
      "title": "Correction of Myopia Evaluation Trial 2",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Progressive Addition Lenses (PALs)",
          "type": "DEVICE"
        },
        {
          "name": "Single Vision Lenses (SVLs)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Jaeb Center for Health Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "8 Years to 11 Years"
      },
      "enrollment_count": 118,
      "start_date": "2005-04",
      "completion_date": "2010-03",
      "has_results": true,
      "last_update_posted_date": "2026-07-09",
      "last_synced_at": "2026-07-23T18:17:23.568Z",
      "location_count": 8,
      "location_summary": "Birmingham, Alabama • Fullerton, California • Bloomington, Indiana + 5 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "Bloomington",
          "state": "Indiana"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00320593"
    },
    {
      "nct_id": "NCT00766168",
      "title": "High Refractive Index Material 510(k)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia",
        "Hyperopia"
      ],
      "interventions": [
        {
          "name": "HDS HI 1.54; pahrifocon A",
          "type": "OTHER"
        },
        {
          "name": "FluoroPerm 30 RGP; paflufocon C",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DEVICE"
      ],
      "sponsor": "CooperVision International Limited (CVIL)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 76,
      "start_date": "2008-01",
      "completion_date": "2008-08",
      "has_results": false,
      "last_update_posted_date": "2012-06-14",
      "last_synced_at": "2026-07-23T18:17:23.568Z",
      "location_count": 8,
      "location_summary": "Lake Elsinore, California • Englewood, Colorado • East Lansing, Michigan + 5 more",
      "locations": [
        {
          "city": "Lake Elsinore",
          "state": "California"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        },
        {
          "city": "East Lansing",
          "state": "Michigan"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00766168"
    },
    {
      "nct_id": "NCT03762668",
      "title": "Performance Assessment of a Modified Daily Disposable Contact Lens",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Errors",
        "Myopia",
        "Hyperopia"
      ],
      "interventions": [
        {
          "name": "Modified delefilcon A contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Delefilcon A contact lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 62,
      "start_date": "2018-12-03",
      "completion_date": "2019-01-07",
      "has_results": true,
      "last_update_posted_date": "2020-01-13",
      "last_synced_at": "2026-07-23T18:17:23.568Z",
      "location_count": 5,
      "location_summary": "Maitland, Florida • Orlando, Florida • West Palm Beach, Florida + 2 more",
      "locations": [
        {
          "city": "Maitland",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "West Palm Beach",
          "state": "Florida"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03762668"
    },
    {
      "nct_id": "NCT03560141",
      "title": "Clinical Performance of a Silicone Hydrogel Contact Lens Following One Night of Extended Wear",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "LID011121 contact lens",
          "type": "DEVICE"
        },
        {
          "name": "Comfilcon A contact lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2018-07-11",
      "completion_date": "2018-07-17",
      "has_results": true,
      "last_update_posted_date": "2021-07-28",
      "last_synced_at": "2026-07-23T18:17:23.568Z",
      "location_count": 1,
      "location_summary": "Johns Creek, Georgia",
      "locations": [
        {
          "city": "Johns Creek",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03560141"
    },
    {
      "nct_id": "NCT05985304",
      "title": "Clinical Trial of a Hydrophilic EMV Toric Lens RAO210T in the Correction of Aphakia and Corneal Astigmatism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cataract",
        "Corneal Astigmatism"
      ],
      "interventions": [
        {
          "name": "RayOne EMV Toric IOL",
          "type": "DEVICE"
        },
        {
          "name": "RayOne Monofocal IOL",
          "type": "DEVICE"
        },
        {
          "name": "Cataract Surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Rayner Intraocular Lenses Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 274,
      "start_date": "2023-08-10",
      "completion_date": "2024-10-23",
      "has_results": true,
      "last_update_posted_date": "2026-01-21",
      "last_synced_at": "2026-07-23T18:17:23.568Z",
      "location_count": 9,
      "location_summary": "Fayetteville, Arkansas • Grand Junction, Colorado • Alexandria, Minnesota + 6 more",
      "locations": [
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Grand Junction",
          "state": "Colorado"
        },
        {
          "city": "Alexandria",
          "state": "Minnesota"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "West Fargo",
          "state": "North Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05985304"
    },
    {
      "nct_id": "NCT00413881",
      "title": "A Prospective Comparison of Alcon LADARVision Wavefront-guided LASIK Enhancement and Conventional LASIK Enhancement for the Correction of Residual Refractive Errors Following LASIK Procedures",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "WAVEFRONT- GUIDED LASIK ENHANCEMENT",
          "type": "PROCEDURE"
        },
        {
          "name": "CONVENTIONAL LASIK ENHANCEMENT",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Walter Reed Army Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2004-07",
      "completion_date": "2008-03",
      "has_results": false,
      "last_update_posted_date": "2010-01-14",
      "last_synced_at": "2026-07-23T18:17:23.568Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00413881"
    },
    {
      "nct_id": "NCT01342393",
      "title": "Proof of Concept Study for First-Sight Refractive Error Correction: Direct Comparison to Manifest Refraction and Autorefraction Results",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Refractive Error"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 41,
      "start_date": "2011-04",
      "completion_date": "2011-08",
      "has_results": false,
      "last_update_posted_date": "2012-01-11",
      "last_synced_at": "2026-07-23T18:17:23.568Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01342393"
    }
  ]
}