{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Function&page=28",
    "query": {
      "condition": "Visual Function",
      "page": 28
    },
    "page_size": 10
  },
  "pagination": {
    "page": 28,
    "page_size": 10,
    "total_count": 2374,
    "total_pages": 238,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Function&page=29&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Visual+Function&page=27&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-22T13:44:10.498Z",
  "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": "NCT00803803",
      "title": "Dose, Effects and Characteristics of Pilocarpine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Open-angle Glaucoma"
      ],
      "interventions": [
        {
          "name": "Pilocarpine Concentration",
          "type": "DRUG"
        },
        {
          "name": "Pilocarpine Frequency",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 37,
      "start_date": "1978-08",
      "completion_date": "1979-12",
      "has_results": false,
      "last_update_posted_date": "2016-11-22",
      "last_synced_at": "2026-10-22T13:44:10.498Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00803803"
    },
    {
      "nct_id": "NCT06938542",
      "title": "Palliative Care Needs of Children With Rare Diseases and Their Families",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Trisomy 13 Syndrome",
        "Arthrogryposis Congenita Multiplex With Intestinal Atresia",
        "Asparagine Synthetase Deficiency",
        "CHARGE Syndrome",
        "Early Infantile Epileptic Encephalopathy",
        "FOXG1 Syndrome",
        "KBG Syndrome",
        "Noonan Syndrome",
        "Severe Hemophilia A",
        "Short Bowel Syndrome",
        "Beta-Propeller Protein-Associated Neurodegeneration",
        "Brain Injury of Prematurity With Periventricular Leukomalacia",
        "Chromosome 17p13.3 Microdeletion Syndrome",
        "Chromosome 1q43-1q44 Deletion",
        "Cockayne Syndrome",
        "Congenital Diaphragmatic Hernia",
        "End-Stage Renal Disease With Cloacal Anomaly",
        "Mitochondrial Depletion Disorder",
        "Severe Factor VII Deficiency"
      ],
      "interventions": [
        {
          "name": "Family Centered pediatric palliative care for family caregivers of children with rare diseases.",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Children's National Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "12 Months to 99 Years"
      },
      "enrollment_count": 480,
      "start_date": "2025-10-02",
      "completion_date": "2029-08-02",
      "has_results": false,
      "last_update_posted_date": "2026-01-28",
      "last_synced_at": "2026-10-22T13:44:10.498Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06938542"
    },
    {
      "nct_id": "NCT03560141",
      "title": "Clinical Performance of a Silicone Hydrogel Contact Lens Following One Night of Extended Wear",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "LID011121 contact lens",
          "type": "DEVICE"
        },
        {
          "name": "Comfilcon A contact lens",
          "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": 12,
      "start_date": "2018-07-11",
      "completion_date": "2018-07-17",
      "has_results": true,
      "last_update_posted_date": "2021-07-28",
      "last_synced_at": "2026-10-22T13:44:10.498Z",
      "location_count": 1,
      "location_summary": "Johns Creek, Georgia",
      "locations": [
        {
          "city": "Johns Creek",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03560141"
    },
    {
      "nct_id": "NCT01275105",
      "title": "A Single-Center, Randomized, Double-Masked, Placebo and Active Controlled, Dose-Ranging Evaluation of the Duration of Action of Brimonidine Tartrate Ophthalmic Solution in the Control of Ocular Redness Induced by Conjunctival Allergen Challenge (CAC)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Allergic Conjunctivitis"
      ],
      "interventions": [
        {
          "name": "Vehicle",
          "type": "DRUG"
        },
        {
          "name": "Brimonidine Tartrate 0.01%",
          "type": "DRUG"
        },
        {
          "name": "Brimonidine Tartrate 0.025%",
          "type": "DRUG"
        },
        {
          "name": "Oxymetazoline HCl 0.025%",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eye Therapies, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 68,
      "start_date": "2011-01",
      "completion_date": "2011-03",
      "has_results": false,
      "last_update_posted_date": "2012-03-06",
      "last_synced_at": "2026-10-22T13:44:10.498Z",
      "location_count": 1,
      "location_summary": "Andover, Massachusetts",
      "locations": [
        {
          "city": "Andover",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01275105"
    },
    {
      "nct_id": "NCT00050466",
      "title": "Dynamic Light Scattering and Keratoscopy for Corneal Examination",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Corneal Diseases"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Eye Institute (NEI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 24,
      "start_date": "2002-12",
      "completion_date": "2005-09",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-10-22T13:44:10.498Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00050466"
    },
    {
      "nct_id": "NCT01384487",
      "title": "Nidek RS3000 Comparative Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Glaucoma",
        "Retinal Disease",
        "Corneal Disease"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Nidek Co. LTD.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 89,
      "start_date": "2011-06",
      "completion_date": "2011-11",
      "has_results": false,
      "last_update_posted_date": "2012-02-20",
      "last_synced_at": "2026-10-22T13:44:10.498Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01384487"
    },
    {
      "nct_id": "NCT03396809",
      "title": "Punctal Plugs and Iodine Related Discomfort",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dry Eye Syndromes"
      ],
      "interventions": [
        {
          "name": "Punctal plug",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of New Mexico",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2017-07-26",
      "completion_date": "2018-12-07",
      "has_results": false,
      "last_update_posted_date": "2024-03-13",
      "last_synced_at": "2026-10-22T13:44:10.498Z",
      "location_count": 1,
      "location_summary": "Albuquerque, New Mexico",
      "locations": [
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03396809"
    },
    {
      "nct_id": "NCT05956834",
      "title": "A Multi-Modal Remote Monitoring Platform for Frontotemporal Lobar Degeneration (FTLD) Syndromes",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "PSP",
        "CBD",
        "Progressive Supranuclear Palsy",
        "FTD",
        "Corticobasal Degeneration",
        "Frontotemporal Dementia",
        "Frontotemporal Lobar Degeneration"
      ],
      "interventions": [
        {
          "name": "PAMSys",
          "type": "DEVICE"
        },
        {
          "name": "LEGSys",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "40 Years to 89 Years"
      },
      "enrollment_count": 60,
      "start_date": "2023-07-28",
      "completion_date": "2027-12-30",
      "has_results": false,
      "last_update_posted_date": "2026-01-21",
      "last_synced_at": "2026-10-22T13:44:10.498Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • Boston, Massachusetts",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05956834"
    },
    {
      "nct_id": "NCT00344799",
      "title": "Cytogenetic Study of Ocular Melanoma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Choroidal Melanoma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Jonsson Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 95,
      "start_date": "2005-01-08",
      "completion_date": "2020-10-23",
      "has_results": false,
      "last_update_posted_date": "2021-03-29",
      "last_synced_at": "2026-10-22T13:44:10.498Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00344799"
    },
    {
      "nct_id": "NCT01415453",
      "title": "Evoked Retinal Response",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "Ultrasound Stimulus",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 1,
      "start_date": "2011-07",
      "completion_date": "2012-06",
      "has_results": true,
      "last_update_posted_date": "2013-04-05",
      "last_synced_at": "2026-10-22T13:44:10.498Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01415453"
    }
  ]
}