{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractive+Error+Correction&page=2",
    "query": {
      "condition": "Refractive Error Correction",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractive+Error+Correction&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T18:48:07.874Z",
  "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": "NCT03475875",
      "title": "Contact Lenses With New UV-blocker Manufactured With Different Techniques",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Correction of Refraction Error",
        "Attenuation of Bright Light"
      ],
      "interventions": [
        {
          "name": "senofilcon A TEST Lens",
          "type": "DEVICE"
        },
        {
          "name": "senofilcon A CONTROL Lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johnson & Johnson Vision Care, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 92,
      "start_date": "2018-02-19",
      "completion_date": "2018-04-18",
      "has_results": true,
      "last_update_posted_date": "2019-06-04",
      "last_synced_at": "2026-07-22T18:48:07.874Z",
      "location_count": 5,
      "location_summary": "Foster City, California • Jacksonville, Florida • Pickens, South Carolina + 2 more",
      "locations": [
        {
          "city": "Foster City",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Pickens",
          "state": "South Carolina"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03475875"
    },
    {
      "nct_id": "NCT00770094",
      "title": "Multi Laser Platform Comparison Study for LASIK",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Excimer Lasers",
          "type": "DEVICE"
        },
        {
          "name": "Excimer Laser for the LASIK procedure",
          "type": "DEVICE"
        },
        {
          "name": "Excimer Laser for LASIK",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Durrie Vision",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 90,
      "start_date": "2008-10",
      "completion_date": "2009-02",
      "has_results": false,
      "last_update_posted_date": "2009-08-06",
      "last_synced_at": "2026-07-22T18:48:07.874Z",
      "location_count": 3,
      "location_summary": "Atlanta, Georgia • Edina, Minnesota • McLean, Virginia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Edina",
          "state": "Minnesota"
        },
        {
          "city": "McLean",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00770094"
    },
    {
      "nct_id": "NCT06487897",
      "title": "Phase III Presbyopia Correction Using the VIS Opti-K™ System",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "Optimal laser keratoplasty",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "VIS, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 75,
      "start_date": "2024-09-30",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2024-09-05",
      "last_synced_at": "2026-07-22T18:48:07.874Z",
      "location_count": 4,
      "location_summary": "Boca Raton, Florida • South Dartmouth, Massachusetts • Teaneck, New Jersey + 1 more",
      "locations": [
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "South Dartmouth",
          "state": "Massachusetts"
        },
        {
          "city": "Teaneck",
          "state": "New Jersey"
        },
        {
          "city": "Oceanside",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06487897"
    },
    {
      "nct_id": "NCT01028937",
      "title": "Hyperopia Correction Using the NTK Optimal Keratoplasty (Opti-K) System",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hyperopia"
      ],
      "interventions": [
        {
          "name": "Optimal Keratoplasty",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "NTK Enterprises, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 6,
      "start_date": "2009-12",
      "completion_date": "2018-01",
      "has_results": true,
      "last_update_posted_date": "2019-05-09",
      "last_synced_at": "2026-07-22T18:48:07.874Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01028937"
    },
    {
      "nct_id": "NCT00762281",
      "title": "Safety and Effectiveness Study of the MEL 80 Excimer Laser Using LASIK in the Treatment of Hyperopia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hyperopia"
      ],
      "interventions": [
        {
          "name": "MEL 80 Hyperopic LASIK Treatment",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Carl Zeiss Meditec, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 189,
      "start_date": "2004-07",
      "completion_date": "2008-10",
      "has_results": false,
      "last_update_posted_date": "2012-08-13",
      "last_synced_at": "2026-07-22T18:48:07.874Z",
      "location_count": 6,
      "location_summary": "San Diego, California • Greenwood Village, Colorado • Kansas City, Missouri + 3 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Greenwood Village",
          "state": "Colorado"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "Eugene",
          "state": "Oregon"
        },
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00762281"
    },
    {
      "nct_id": "NCT02053688",
      "title": "Evaluation Study on Corneal Lens for Vision Correction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Astigmatic Correction Lens (Nexis ACCL lenses)",
          "type": "DEVICE"
        },
        {
          "name": "Toric Soft Contact Lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "FORSIGHT Vision3",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 40,
      "start_date": "2013-02",
      "completion_date": "2013-12",
      "has_results": false,
      "last_update_posted_date": "2014-02-04",
      "last_synced_at": "2026-07-22T18:48:07.874Z",
      "location_count": 6,
      "location_summary": "Fremont, California • Livermore, California • Menlo Park, California + 2 more",
      "locations": [
        {
          "city": "Fremont",
          "state": "California"
        },
        {
          "city": "Fremont",
          "state": "California"
        },
        {
          "city": "Livermore",
          "state": "California"
        },
        {
          "city": "Menlo Park",
          "state": "California"
        },
        {
          "city": "San Mateo",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02053688"
    },
    {
      "nct_id": "NCT00821236",
      "title": "Contralateral Comparison of Three Excimer Laser Systems in Performing LASIK",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Excimer Laser",
          "type": "DEVICE"
        },
        {
          "name": "AMO/VISX CustomVue™",
          "type": "DEVICE"
        },
        {
          "name": "LADARVision 4000 excimer laser",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Durrie Vision",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2009-01",
      "completion_date": "2010-02",
      "has_results": true,
      "last_update_posted_date": "2013-03-01",
      "last_synced_at": "2026-07-22T18:48:07.874Z",
      "location_count": 2,
      "location_summary": "Overland Park, Kansas • Greensboro, North Carolina",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "Greensboro",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00821236"
    },
    {
      "nct_id": "NCT00472212",
      "title": "Correction of Farsightedness in Children Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hyperopia",
        "Farsightedness"
      ],
      "interventions": [
        {
          "name": "Spectacles",
          "type": "DEVICE"
        },
        {
          "name": "Control",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "6 Years to 11 Years"
      },
      "enrollment_count": 58,
      "start_date": "2003-11",
      "completion_date": "2008-03",
      "has_results": true,
      "last_update_posted_date": "2023-04-18",
      "last_synced_at": "2026-07-22T18:48:07.874Z",
      "location_count": 4,
      "location_summary": "Chicago, Illinois • New York, New York • Columbus, Ohio + 1 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00472212"
    },
    {
      "nct_id": "NCT00000113",
      "title": "Correction of Myopia Evaluation Trial (COMET)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Progressive Addition Lenses",
          "type": "OTHER"
        },
        {
          "name": "single vision lenses",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Stony Brook University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "6 Years to 12 Years"
      },
      "enrollment_count": 469,
      "start_date": "1997-09",
      "completion_date": "2013-09",
      "has_results": false,
      "last_update_posted_date": "2016-04-15",
      "last_synced_at": "2026-07-22T18:48:07.874Z",
      "location_count": 4,
      "location_summary": "Birmingham, Alabama • Boston, Massachusetts • Philadelphia, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00000113"
    },
    {
      "nct_id": "NCT03920280",
      "title": "Clinical Evaluation of a Daily Wear Frequent Replacement Silicone Hydrogel Lens",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "LID015385 contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Comfilcon A soft contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "CLEAR CARE",
          "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": 120,
      "start_date": "2019-05-22",
      "completion_date": "2019-10-05",
      "has_results": true,
      "last_update_posted_date": "2022-07-28",
      "last_synced_at": "2026-07-22T18:48:07.874Z",
      "location_count": 8,
      "location_summary": "Maitland, Florida • Orlando, Florida • Pensacola, Florida + 5 more",
      "locations": [
        {
          "city": "Maitland",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Pensacola",
          "state": "Florida"
        },
        {
          "city": "Bloomington",
          "state": "Illinois"
        },
        {
          "city": "Pittsburg",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03920280"
    }
  ]
}