{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Function&page=13",
    "query": {
      "condition": "Visual Function",
      "page": 13
    },
    "page_size": 10
  },
  "pagination": {
    "page": 13,
    "page_size": 10,
    "total_count": 2373,
    "total_pages": 238,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Function&page=14&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Function&page=12&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-21T22:51:52.264Z",
  "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": "NCT02139033",
      "title": "A Phase 4 Study Investigating the Efficacy of Retaine™ in Managing Signs and Symptoms Associated With Dry Eye Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Keratoconjunctivitis Sicca"
      ],
      "interventions": [
        {
          "name": "Retaine™",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ocusoft, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 42,
      "start_date": "2014-05",
      "completion_date": "2014-05",
      "has_results": false,
      "last_update_posted_date": "2014-06-11",
      "last_synced_at": "2026-10-21T22:51:52.264Z",
      "location_count": 1,
      "location_summary": "Andover, Massachusetts",
      "locations": [
        {
          "city": "Andover",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02139033"
    },
    {
      "nct_id": "NCT02086890",
      "title": "Electro-acupuncture and Transcorneal Electrical Stimulation (TES) for Retinitis Pigmentosa",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "Electro-acupuncture",
          "type": "DEVICE"
        },
        {
          "name": "Laser Acupuncture",
          "type": "DEVICE"
        },
        {
          "name": "Transcorneal Electrical Stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Sham Electro-acupuncture",
          "type": "DEVICE"
        },
        {
          "name": "Sham laser acupuncture",
          "type": "DEVICE"
        },
        {
          "name": "Sham transcorneal electrical stimulation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Nova Southeastern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 21,
      "start_date": "2014-08-13",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-02-27",
      "last_synced_at": "2026-10-21T22:51:52.264Z",
      "location_count": 1,
      "location_summary": "Fort Lauderdale, Florida",
      "locations": [
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02086890"
    },
    {
      "nct_id": "NCT07520175",
      "title": "A Study of Outcomes Following Bio-Reinforced Canaloplasty in Eyes With Open-Angle Glaucoma",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Open-Angle Glaucoma"
      ],
      "interventions": [
        {
          "name": "AlloSpan Canal Platform Bio-Reinforced Canaloplasty",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Iantrek, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 300,
      "start_date": "2026-04-01",
      "completion_date": "2029-12",
      "has_results": false,
      "last_update_posted_date": "2026-10-13",
      "last_synced_at": "2026-10-21T22:51:52.264Z",
      "location_count": 9,
      "location_summary": "Chico, California • Petaluma, California • Alexandria, Minnesota + 6 more",
      "locations": [
        {
          "city": "Chico",
          "state": "California"
        },
        {
          "city": "Petaluma",
          "state": "California"
        },
        {
          "city": "Alexandria",
          "state": "Minnesota"
        },
        {
          "city": "Coon Rapids",
          "state": "Minnesota"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07520175"
    },
    {
      "nct_id": "NCT03052257",
      "title": "Improve Glaucoma Medication Adherence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glaucoma"
      ],
      "interventions": [
        {
          "name": "Educational - glaucoma",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Dose monitoring and reminder",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Educational - general",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Dose monitoring",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "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": 200,
      "start_date": "2017-08-09",
      "completion_date": "2021-03-01",
      "has_results": true,
      "last_update_posted_date": "2024-05-02",
      "last_synced_at": "2026-10-21T22:51:52.264Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03052257"
    },
    {
      "nct_id": "NCT02100787",
      "title": "Changes in Tear Osmolarity Over Time With Sustained Use of TheraTears",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dry Eye Syndrome"
      ],
      "interventions": [
        {
          "name": "TheraTears lubricating drops",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Jenkins Eye Care",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2014-04-10",
      "completion_date": "2016-06-30",
      "has_results": false,
      "last_update_posted_date": "2017-03-03",
      "last_synced_at": "2026-10-21T22:51:52.264Z",
      "location_count": 1,
      "location_summary": "Honolulu, Hawaii",
      "locations": [
        {
          "city": "Honolulu",
          "state": "Hawaii"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02100787"
    },
    {
      "nct_id": "NCT05601544",
      "title": "The Effects of Contact Lenses With UV/HEV-Filter on Visual Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Acuity"
      ],
      "interventions": [
        {
          "name": "ACUVUE OASYS 1-Day",
          "type": "DEVICE"
        },
        {
          "name": "ACUVUE OASYS MAX 1-Day",
          "type": "DEVICE"
        },
        {
          "name": "ACUVUE OASYS Multifocal",
          "type": "DEVICE"
        },
        {
          "name": "ACUVUE OASYS MAX 1-Day Multifocal",
          "type": "DEVICE"
        },
        {
          "name": "ACUVUE OASYS 1-Day for Astigmatism",
          "type": "DEVICE"
        },
        {
          "name": "senofilcon A based contact lens (toric) with new UV/HEV filter",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johnson & Johnson Vision Care, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 145,
      "start_date": "2022-12-09",
      "completion_date": "2023-11-17",
      "has_results": true,
      "last_update_posted_date": "2025-04-27",
      "last_synced_at": "2026-10-21T22:51:52.264Z",
      "location_count": 1,
      "location_summary": "Athens, Georgia",
      "locations": [
        {
          "city": "Athens",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05601544"
    },
    {
      "nct_id": "NCT07691463",
      "title": "Evaluating How Well Different Types of Light-sensitive Cells in the Eye Contribute to Its Focusing Ability",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Monochromatic",
        "L- and S-cone Modulation Only",
        "L- and M-cone Modulation Only",
        "M and S-cone Modulation Only"
      ],
      "interventions": [
        {
          "name": "Color",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Rochester Institute of Technology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "Up to 35 Years"
      },
      "enrollment_count": 20,
      "start_date": "2026-07-02",
      "completion_date": "2026-12-15",
      "has_results": false,
      "last_update_posted_date": "2026-07-17",
      "last_synced_at": "2026-10-21T22:51:52.264Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07691463"
    },
    {
      "nct_id": "NCT05259163",
      "title": "LFR-260 vs Traditional Phoropter in Visual Acuity Testing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Acuity",
        "Astigmatism",
        "Anisometropia"
      ],
      "interventions": [
        {
          "name": "LFR-260 portable phoropter",
          "type": "DEVICE"
        },
        {
          "name": "Traditional phoropter (SOC)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Evolution Optiks Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "12 Years to 65 Years"
      },
      "enrollment_count": 112,
      "start_date": "2022-06-07",
      "completion_date": "2023-01-06",
      "has_results": true,
      "last_update_posted_date": "2024-09-25",
      "last_synced_at": "2026-10-21T22:51:52.264Z",
      "location_count": 2,
      "location_summary": "Worcester, Massachusetts • Oyster Bay, New York",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        },
        {
          "city": "Oyster Bay",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05259163"
    },
    {
      "nct_id": "NCT00315328",
      "title": "Trial Comparing Patching Versus Atropine for Amblyopia in 7 to < 13 Year Olds",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Amblyopia"
      ],
      "interventions": [
        {
          "name": "Atropine",
          "type": "DRUG"
        },
        {
          "name": "Patching",
          "type": "DEVICE"
        },
        {
          "name": "Near activities",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Jaeb Center for Health Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "7 Years to 12 Years"
      },
      "enrollment_count": 233,
      "start_date": "2005-08",
      "completion_date": "2008-01",
      "has_results": true,
      "last_update_posted_date": "2016-06-24",
      "last_synced_at": "2026-10-21T22:51:52.264Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00315328"
    },
    {
      "nct_id": "NCT04318132",
      "title": "Agreement and Precision Study of the Nidek Mirante",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glaucoma",
        "Retinal Disease",
        "Corneal Disease"
      ],
      "interventions": [
        {
          "name": "Nidek Mirante",
          "type": "DEVICE"
        },
        {
          "name": "Optovue RTVue XR Avanti",
          "type": "DEVICE"
        },
        {
          "name": "Optos P200DTx",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Nidek Co. LTD.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 170,
      "start_date": "2020-01-25",
      "completion_date": "2021-12-30",
      "has_results": true,
      "last_update_posted_date": "2023-08-24",
      "last_synced_at": "2026-10-21T22:51:52.264Z",
      "location_count": 1,
      "location_summary": "Andover, Massachusetts",
      "locations": [
        {
          "city": "Andover",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04318132"
    }
  ]
}