{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractive+Errors&page=14",
    "query": {
      "condition": "Refractive Errors",
      "page": 14
    },
    "page_size": 10
  },
  "pagination": {
    "page": 14,
    "page_size": 10,
    "total_count": 634,
    "total_pages": 64,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractive+Errors&page=15&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Refractive+Errors&page=13&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-20T10:46:40.932Z",
  "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": "NCT05129124",
      "title": "Insertion Clinical Study to Evaluate the Orientation Characteristics of Multiple Kalifilcon A Daily Disposable Toric LD213001 Contact Lenses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "kalifilcon A Daily Disposable Toric LD213001 Contact Lenses",
          "type": "DEVICE"
        },
        {
          "name": "Commercially available Ultra for Astigmatism Contact Lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Bausch & Lomb Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2021-11-30",
      "completion_date": "2022-01-13",
      "has_results": true,
      "last_update_posted_date": "2025-07-10",
      "last_synced_at": "2026-10-20T10:46:40.932Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05129124"
    },
    {
      "nct_id": "NCT03929588",
      "title": "Study of a Hand-held Device Plus Mobile App Versus Standard Eye Care Devices in Measuring Refractive Error of the Eye",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Errors",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Hand-held device supported by a mobile application",
          "type": "DEVICE"
        },
        {
          "name": "Phoropter",
          "type": "DEVICE"
        },
        {
          "name": "Autorefractor",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "EyeQue Corp.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "30 Years to 65 Years"
      },
      "enrollment_count": 230,
      "start_date": "2019-05-07",
      "completion_date": "2020-03-31",
      "has_results": true,
      "last_update_posted_date": "2022-03-24",
      "last_synced_at": "2026-10-20T10:46:40.932Z",
      "location_count": 1,
      "location_summary": "Inglewood, California",
      "locations": [
        {
          "city": "Inglewood",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03929588"
    },
    {
      "nct_id": "NCT02780115",
      "title": "A Safety, Efficacy and Pharmacokinetic Study of AGN-199201 and AGN-190584 in Patients With Presbyopia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "AGN-199201 ophthalmic solution",
          "type": "DRUG"
        },
        {
          "name": "AGN-190584 ophthalmic solution",
          "type": "DRUG"
        },
        {
          "name": "AGN-199201 Vehicle",
          "type": "DRUG"
        },
        {
          "name": "AGN-190584 Vehicle",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allergan",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "40 Years to 55 Years"
      },
      "enrollment_count": 151,
      "start_date": "2016-05-26",
      "completion_date": "2017-10-31",
      "has_results": true,
      "last_update_posted_date": "2020-12-22",
      "last_synced_at": "2026-10-20T10:46:40.932Z",
      "location_count": 25,
      "location_summary": "Arcadia, California • Artesia, California • Cypress, California + 19 more",
      "locations": [
        {
          "city": "Arcadia",
          "state": "California"
        },
        {
          "city": "Artesia",
          "state": "California"
        },
        {
          "city": "Cypress",
          "state": "California"
        },
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "Glendale",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02780115"
    },
    {
      "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": "2026-10-20T10:46:40.932Z",
      "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": "NCT03757039",
      "title": "Multifocal Visual Performance Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "Multifocal soft contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Progressive addition lens spectacles",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "38 Years",
        "maximum_age": "58 Years",
        "sex": "ALL",
        "summary": "38 Years to 58 Years"
      },
      "enrollment_count": 42,
      "start_date": "2018-12-16",
      "completion_date": "2019-03-06",
      "has_results": true,
      "last_update_posted_date": "2020-03-25",
      "last_synced_at": "2026-10-20T10:46:40.932Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03757039"
    },
    {
      "nct_id": "NCT05763628",
      "title": "Performance Evaluation of Different Daily Disposable Multifocal Contact Lenses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "Control Lens (stenfilcon A)",
          "type": "DEVICE"
        },
        {
          "name": "Test Lens (senofilcon A)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "42 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "42 Years and older"
      },
      "enrollment_count": 59,
      "start_date": "2022-12-10",
      "completion_date": "2023-06-15",
      "has_results": true,
      "last_update_posted_date": "2024-07-08",
      "last_synced_at": "2026-10-20T10:46:40.932Z",
      "location_count": 3,
      "location_summary": "Vestal, New York • Athens, Ohio • Bellaire, Texas",
      "locations": [
        {
          "city": "Vestal",
          "state": "New York"
        },
        {
          "city": "Athens",
          "state": "Ohio"
        },
        {
          "city": "Bellaire",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05763628"
    },
    {
      "nct_id": "NCT04080128",
      "title": "Examination of Myopia Progression and Soft Bifocal Contact Lens Myopia Control",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Contact lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "15 Years",
        "sex": "ALL",
        "summary": "10 Years to 15 Years"
      },
      "enrollment_count": 248,
      "start_date": "2019-09-09",
      "completion_date": "2024-01-04",
      "has_results": true,
      "last_update_posted_date": "2026-06-02",
      "last_synced_at": "2026-10-20T10:46:40.932Z",
      "location_count": 2,
      "location_summary": "Columbus, Ohio • Houston, Texas",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04080128"
    },
    {
      "nct_id": "NCT07444658",
      "title": "Performance of Two Daily Disposable Multifocal Contact Lenses",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "Lens A (kalfilcon A)",
          "type": "DEVICE"
        },
        {
          "name": "Lens B (stenfilcon A)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision International Limited (CVIL)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 35,
      "start_date": "2026-02-24",
      "completion_date": "2026-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-08",
      "last_synced_at": "2026-10-20T10:46:40.932Z",
      "location_count": 1,
      "location_summary": "Berkeley, California",
      "locations": [
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07444658"
    },
    {
      "nct_id": "NCT02939170",
      "title": "Initial Performance of a Daily Disposable Contact Lens Featuring Molded Marks",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Error"
      ],
      "interventions": [
        {
          "name": "Delefilcon A Multifocal Contact Lenses with Molded Mark",
          "type": "DEVICE"
        },
        {
          "name": "Delefilcon A Multifocal Contact Lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alcon, a Novartis Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 87,
      "start_date": "2016-11-14",
      "completion_date": "2016-12-02",
      "has_results": true,
      "last_update_posted_date": "2018-07-02",
      "last_synced_at": "2026-10-20T10:46:40.932Z",
      "location_count": 1,
      "location_summary": "Fort Worth, Texas",
      "locations": [
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02939170"
    },
    {
      "nct_id": "NCT04055519",
      "title": "Clinical Performance Assessment of a Daily Wear Monthly Replacement Soft Silicone Hydrogel Contact Lens",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "Lehfilcon A contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Comfilcon A contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Multi-purpose disinfection solution",
          "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": 36,
      "start_date": "2019-09-19",
      "completion_date": "2019-12-03",
      "has_results": true,
      "last_update_posted_date": "2021-05-13",
      "last_synced_at": "2026-10-20T10:46:40.932Z",
      "location_count": 3,
      "location_summary": "Maitland, Florida • Bloomington, Illinois • Memphis, Tennessee",
      "locations": [
        {
          "city": "Maitland",
          "state": "Florida"
        },
        {
          "city": "Bloomington",
          "state": "Illinois"
        },
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04055519"
    }
  ]
}