{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractive+Errors&page=10",
    "query": {
      "condition": "Refractive Errors",
      "page": 10
    },
    "page_size": 10
  },
  "pagination": {
    "page": 10,
    "page_size": 10,
    "total_count": 634,
    "total_pages": 64,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractive+Errors&page=11&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractive+Errors&page=9&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-20T06:39:13.477Z",
  "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": "NCT07600645",
      "title": "Contact Lens Trial Fitting Experience",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "Lens A ( stenfilcon A )",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision International Limited (CVIL)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 25,
      "start_date": "2026-05-31",
      "completion_date": "2026-09-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-10-20T06:39:13.477Z",
      "location_count": 2,
      "location_summary": "Bellaire, Texas • Corpus Christi, Texas",
      "locations": [
        {
          "city": "Bellaire",
          "state": "Texas"
        },
        {
          "city": "Corpus Christi",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07600645"
    },
    {
      "nct_id": "NCT04545073",
      "title": "Outcomes of a Trifocal IOL in Post-refractive Patients",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "PanOptix",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Vance Thompson Vision ND",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2020-10-09",
      "completion_date": "2021-05",
      "has_results": false,
      "last_update_posted_date": "2020-10-19",
      "last_synced_at": "2026-10-20T06:39:13.477Z",
      "location_count": 1,
      "location_summary": "West Fargo, North Dakota",
      "locations": [
        {
          "city": "West Fargo",
          "state": "North Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04545073"
    },
    {
      "nct_id": "NCT02515994",
      "title": "Evaluation of a Johnson & Johnson Vision Care Investigational Contact Lens Compared to a Marketed Monthly Replacement Contact Lens",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Error"
      ],
      "interventions": [
        {
          "name": "senofilcon C",
          "type": "DEVICE"
        },
        {
          "name": "comfilcon A",
          "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": 224,
      "start_date": "2015-07",
      "completion_date": "2015-11",
      "has_results": true,
      "last_update_posted_date": "2016-07-15",
      "last_synced_at": "2026-10-20T06:39:13.477Z",
      "location_count": 10,
      "location_summary": "Jacksonville, Florida • Longwood, Florida • Bloomington, Illinois + 7 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Longwood",
          "state": "Florida"
        },
        {
          "city": "Bloomington",
          "state": "Illinois"
        },
        {
          "city": "Broadway Pittsburg",
          "state": "Kansas"
        },
        {
          "city": "Closter",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02515994"
    },
    {
      "nct_id": "NCT06812572",
      "title": "A Prospective Clinical Study to Evaluate the Repeatability of the Visibly Vision Test",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Visibly Vision Test",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Visibly",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "22 Years to 55 Years"
      },
      "enrollment_count": 25,
      "start_date": "2019-03-04",
      "completion_date": "2019-03-25",
      "has_results": false,
      "last_update_posted_date": "2025-02-06",
      "last_synced_at": "2026-10-20T06:39:13.477Z",
      "location_count": 1,
      "location_summary": "Harlingen, Texas",
      "locations": [
        {
          "city": "Harlingen",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06812572"
    },
    {
      "nct_id": "NCT02544529",
      "title": "Echothiophate Iodide for the Prevention of Progression of Myopia",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Echothiophate Iodide 0.03% Ophthalmic Solution",
          "type": "DRUG"
        },
        {
          "name": "Carboxymethylcellulose Sodium (0.5%)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Danbury Eye Physicians & Surgeons, PC",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "15 Years",
        "sex": "ALL",
        "summary": "9 Years to 15 Years"
      },
      "enrollment_count": 0,
      "start_date": "2016-06-01",
      "completion_date": "2016-06-01",
      "has_results": false,
      "last_update_posted_date": "2025-02-07",
      "last_synced_at": "2026-10-20T06:39:13.477Z",
      "location_count": 1,
      "location_summary": "Danbury, Connecticut",
      "locations": [
        {
          "city": "Danbury",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02544529"
    },
    {
      "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": "2026-10-20T06:39:13.477Z",
      "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": "NCT02956460",
      "title": "Performance Comparison Between Fanfilcon A and Senofilcon A Sphere Lenses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "fanfilcon A",
          "type": "DEVICE"
        },
        {
          "name": "senofilcon A",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 64,
      "start_date": "2016-10-27",
      "completion_date": "2016-12-14",
      "has_results": true,
      "last_update_posted_date": "2018-04-02",
      "last_synced_at": "2026-10-20T06:39:13.477Z",
      "location_count": 4,
      "location_summary": "San Diego, California • Sarasota, Florida • Pittsburg, Kansas + 1 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Pittsburg",
          "state": "Kansas"
        },
        {
          "city": "State College",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02956460"
    },
    {
      "nct_id": "NCT05796674",
      "title": "Clareon IOL Retrospective Data Collection",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Aphakia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Clareon UVA IOL",
          "type": "DEVICE"
        },
        {
          "name": "WaveTec Optiwave Refractive Analysis (ORA) System",
          "type": "DEVICE"
        },
        {
          "name": "Cataract surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1090,
      "start_date": "2023-08-18",
      "completion_date": "2023-09-12",
      "has_results": false,
      "last_update_posted_date": "2023-10-18",
      "last_synced_at": "2026-10-20T06:39:13.477Z",
      "location_count": 1,
      "location_summary": "Fort Worth, Texas",
      "locations": [
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05796674"
    },
    {
      "nct_id": "NCT00950924",
      "title": "Optical Defocus to Stimulate Eye Elongation in Hyperopia",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hyperopia",
        "Refractive Error"
      ],
      "interventions": [
        {
          "name": "Simultaneous Vision Bifocal Soft Contact Lenses",
          "type": "DEVICE"
        },
        {
          "name": "Single Vision Soft Contact Lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Aller, Thomas A., OD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "5 Years to 12 Years"
      },
      "enrollment_count": 30,
      "start_date": "2015-01",
      "completion_date": "2022-01-01",
      "has_results": false,
      "last_update_posted_date": "2021-01-12",
      "last_synced_at": "2026-10-20T06:39:13.477Z",
      "location_count": 1,
      "location_summary": "San Bruno, California",
      "locations": [
        {
          "city": "San Bruno",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00950924"
    },
    {
      "nct_id": "NCT03067077",
      "title": "A Prospective, Contralateral, Eye to Eye Comparison of SMILE Surgery to LASIK Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "SMILE",
          "type": "PROCEDURE"
        },
        {
          "name": "LASIK",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "22 Years to 59 Years"
      },
      "enrollment_count": 44,
      "start_date": "2017-03-12",
      "completion_date": "2021-03-15",
      "has_results": true,
      "last_update_posted_date": "2022-02-02",
      "last_synced_at": "2026-10-20T06:39:13.477Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03067077"
    }
  ]
}