{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Function&page=21",
    "query": {
      "condition": "Visual Function",
      "page": 21
    },
    "page_size": 10
  },
  "pagination": {
    "page": 21,
    "page_size": 10,
    "total_count": 2373,
    "total_pages": 238,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Function&page=22&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Function&page=20&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-22T05:25:00.301Z",
  "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": "NCT01228929",
      "title": "Non-invasive Ocular Surface Measurements Before and After Interventions",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dry Eye Syndrome",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Environmental Chamber Condition Change Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 18,
      "start_date": "2010-07",
      "completion_date": "2014-01",
      "has_results": true,
      "last_update_posted_date": "2015-10-12",
      "last_synced_at": "2026-10-22T05:25:00.301Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01228929"
    },
    {
      "nct_id": "NCT04603937",
      "title": "A Study to Evaluate the Efficacy, Durability, and Safety of KSI-301 Compared to Aflibercept in Participants With Diabetic Macular Edema (DME)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Diabetic Macular Edema"
      ],
      "interventions": [
        {
          "name": "KSI-301",
          "type": "DRUG"
        },
        {
          "name": "Aflibercept",
          "type": "DRUG"
        },
        {
          "name": "Sham Procedure",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Kodiak Sciences Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 459,
      "start_date": "2020-09-30",
      "completion_date": "2023-08-31",
      "has_results": true,
      "last_update_posted_date": "2024-08-22",
      "last_synced_at": "2026-10-22T05:25:00.301Z",
      "location_count": 40,
      "location_summary": "Phoenix, Arizona • Beverly Hills, California • Fullerton, California + 37 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "Mountain View",
          "state": "California"
        },
        {
          "city": "Poway",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04603937"
    },
    {
      "nct_id": "NCT05119127",
      "title": "Rotational Stability of Acrysof IQ Vivity Extended Vision Toric IOL and Refractive Visual Outcome.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cataract"
      ],
      "interventions": [
        {
          "name": "Alcon Vivity toric intra ocular lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Kevin Barber",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 35,
      "start_date": "2020-09-30",
      "completion_date": "2021-08-19",
      "has_results": false,
      "last_update_posted_date": "2021-11-12",
      "last_synced_at": "2026-10-22T05:25:00.301Z",
      "location_count": 1,
      "location_summary": "DeLand, Florida",
      "locations": [
        {
          "city": "DeLand",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05119127"
    },
    {
      "nct_id": "NCT04616573",
      "title": "A Post-market Study Of Use Of The OMNI® Surgical System In Open Angle Glaucoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glaucoma, Open-Angle"
      ],
      "interventions": [
        {
          "name": "OMNI® Surgical System",
          "type": "DEVICE"
        },
        {
          "name": "iStent inject",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Sight Sciences, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2020-11-13",
      "completion_date": "2021-01-20",
      "has_results": true,
      "last_update_posted_date": "2022-12-01",
      "last_synced_at": "2026-10-22T05:25:00.301Z",
      "location_count": 2,
      "location_summary": "Dothan, Alabama • Vineland, New Jersey",
      "locations": [
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Vineland",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04616573"
    },
    {
      "nct_id": "NCT00649766",
      "title": "Tailored Messages to Increase Eye Examination Behavior",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Eye Disease",
        "Eye Care"
      ],
      "interventions": [
        {
          "name": "tailored newsletter",
          "type": "BEHAVIORAL"
        },
        {
          "name": "targeted newsletter",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "National Eye Institute (NEI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 330,
      "start_date": "2006-06",
      "completion_date": "2008-05",
      "has_results": false,
      "last_update_posted_date": "2008-04-01",
      "last_synced_at": "2026-10-22T05:25:00.301Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00649766"
    },
    {
      "nct_id": "NCT00223756",
      "title": "VA Low Vision Intervention Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vision, Low"
      ],
      "interventions": [
        {
          "name": "Low Vision Intervention - Outpatient Training Program",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 61,
      "start_date": "2004-11",
      "completion_date": "2007-08",
      "has_results": false,
      "last_update_posted_date": "2016-01-08",
      "last_synced_at": "2026-10-22T05:25:00.301Z",
      "location_count": 1,
      "location_summary": "Hines, Illinois",
      "locations": [
        {
          "city": "Hines",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00223756"
    },
    {
      "nct_id": "NCT04553523",
      "title": "Hydrus® Microstent New Enrollment Post-Approval Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Primary Open Angle Glaucoma"
      ],
      "interventions": [
        {
          "name": "Hydrus Microstent",
          "type": "DEVICE"
        },
        {
          "name": "Cataract surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Monofocal IOL",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "45 Years and older"
      },
      "enrollment_count": 545,
      "start_date": "2020-08-25",
      "completion_date": "2028-10",
      "has_results": false,
      "last_update_posted_date": "2026-09-22",
      "last_synced_at": "2026-10-22T05:25:00.301Z",
      "location_count": 22,
      "location_summary": "Irvine, California • Sacramento, California • Loveland, Colorado + 19 more",
      "locations": [
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Loveland",
          "state": "Colorado"
        },
        {
          "city": "Sioux City",
          "state": "Iowa"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04553523"
    },
    {
      "nct_id": "NCT03556579",
      "title": "The Effects of Contact Lenses With Experimental Dye on Visual Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ametropia"
      ],
      "interventions": [
        {
          "name": "senofilcon A with new UV blocker",
          "type": "DEVICE"
        },
        {
          "name": "senofilcon 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": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 62,
      "start_date": "2018-05-15",
      "completion_date": "2018-09-20",
      "has_results": true,
      "last_update_posted_date": "2019-11-18",
      "last_synced_at": "2026-10-22T05:25:00.301Z",
      "location_count": 1,
      "location_summary": "Statesboro, Georgia",
      "locations": [
        {
          "city": "Statesboro",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03556579"
    },
    {
      "nct_id": "NCT00985296",
      "title": "Conjunctival Allergen Challenge (CAC) Following Allergen Exposure in the Allergen BioCube (ABC)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Allergic Rhinoconjunctivitis"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "ORA, Inc.",
      "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": "2009-09",
      "completion_date": "2010-08",
      "has_results": false,
      "last_update_posted_date": "2010-09-21",
      "last_synced_at": "2026-10-22T05:25:00.301Z",
      "location_count": 1,
      "location_summary": "Andover, Massachusetts",
      "locations": [
        {
          "city": "Andover",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00985296"
    },
    {
      "nct_id": "NCT02329743",
      "title": "Efficacy and Safety of RX-10045 Ophthalmic Solution for Ocular Inflammation and Pain in Cataract Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Inflammation",
        "Pain",
        "Cataract"
      ],
      "interventions": [
        {
          "name": "RX-10045",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "A.T. Resolve SARL",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 256,
      "start_date": "2014-12",
      "completion_date": "2015-09",
      "has_results": true,
      "last_update_posted_date": "2019-02-20",
      "last_synced_at": "2026-10-22T05:25:00.301Z",
      "location_count": 1,
      "location_summary": "Murray Hill, New Jersey",
      "locations": [
        {
          "city": "Murray Hill",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02329743"
    }
  ]
}