{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+field+assessment&page=2",
    "query": {
      "intervention": "Visual field assessment",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+field+assessment&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T07:04:32.856Z",
  "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": "NCT07270133",
      "title": "Longitudinal Natural History Study of Retinal Function in Eyes of Patients With Diabetes",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Diabetic Retinal Disease"
      ],
      "interventions": [
        {
          "name": "Visual Acuity",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Reading Speed",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Visual Field testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Contrast sensitivity",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Electroretinography (ERG) and pupillography in light- and dark-adapted states",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Ultrawide field-color photograph",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Ultrawide field-Fluorescein angiogram",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Optical coherence tomography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Optical coherence tomography- Angiography",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "Jaeb Center for Health Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 450,
      "start_date": "2026-06-01",
      "completion_date": "2032-12",
      "has_results": false,
      "last_update_posted_date": "2026-09-16",
      "last_synced_at": "2026-09-25T07:04:32.856Z",
      "location_count": 6,
      "location_summary": "Augusta, Georgia • Boston, Massachusetts • Detroit, Michigan + 3 more",
      "locations": [
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Monroeville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07270133"
    },
    {
      "nct_id": "NCT05430477",
      "title": "Characterizing In Vivo Oral Lesion Impedances",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Oral Lesion"
      ],
      "interventions": [
        {
          "name": "Electrical impedance imaging using Non-Significant Risk device (EII probe)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Ryan J. Halter",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 114,
      "start_date": "2022-08-29",
      "completion_date": "2025-08-20",
      "has_results": false,
      "last_update_posted_date": "2025-09-22",
      "last_synced_at": "2026-09-25T07:04:32.856Z",
      "location_count": 1,
      "location_summary": "Lebanon, New Hampshire",
      "locations": [
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05430477"
    },
    {
      "nct_id": "NCT03625765",
      "title": "Integrated Imaging System for In Vivo Visualization of Free Flap Perfusion Using Indocyanine Dye",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Reconstruction"
      ],
      "interventions": [
        {
          "name": "SmartGoggles",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Case Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2019-11-22",
      "completion_date": "2024-12",
      "has_results": false,
      "last_update_posted_date": "2024-11-12",
      "last_synced_at": "2026-09-25T07:04:32.856Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03625765"
    },
    {
      "nct_id": "NCT01051739",
      "title": "Variability in Perimetry Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Glaucoma"
      ],
      "interventions": [
        {
          "name": "Comparison of four visual field testing strategies",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 180,
      "start_date": "2010-07",
      "completion_date": "2015-09",
      "has_results": true,
      "last_update_posted_date": "2017-03-21",
      "last_synced_at": "2026-09-25T07:04:32.856Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01051739"
    },
    {
      "nct_id": "NCT04930822",
      "title": "Evaluation of Bioness Integrated Therapy System (BITS) Touch Screen Technology to Improve Field Awareness",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke",
        "Neurologic Disorder",
        "Traumatic Brain Injury",
        "Acquired Brain Injury"
      ],
      "interventions": [
        {
          "name": "Table Top Visual Intervention",
          "type": "OTHER"
        },
        {
          "name": "Bioness Integrated Therapy System Visual Intervention",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DEVICE"
      ],
      "sponsor": "Gaylord Hospital, Inc",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 37,
      "start_date": "2021-01-08",
      "completion_date": "2024-09-23",
      "has_results": true,
      "last_update_posted_date": "2025-12-23",
      "last_synced_at": "2026-09-25T07:04:32.856Z",
      "location_count": 1,
      "location_summary": "Wallingford, Connecticut",
      "locations": [
        {
          "city": "Wallingford",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04930822"
    },
    {
      "nct_id": "NCT04120077",
      "title": "Combined Effects of Diabetes Self-Management Education and Nutritional Supplementation on Visual Function and Retinopathy",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes Mellitus",
        "Diabetic Retinopathy"
      ],
      "interventions": [
        {
          "name": "EyePromise DVS, EyePromise DVS plus EyePromise EZTears",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "ZeaVision, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 150,
      "start_date": "2020-01-01",
      "completion_date": "2022-01-01",
      "has_results": false,
      "last_update_posted_date": "2021-04-23",
      "last_synced_at": "2026-09-25T07:04:32.856Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04120077"
    },
    {
      "nct_id": "NCT01866371",
      "title": "High Resolution Retinal Imaging",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Stargardts",
        "Retinitis Pigmentosa",
        "Age-related Macular Degeneration",
        "Choroideremia",
        "Geographic Atrophy"
      ],
      "interventions": [
        {
          "name": "Retinal imaging",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "7 Years and older"
      },
      "enrollment_count": 600,
      "start_date": "2013-05",
      "completion_date": "2031-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-05",
      "last_synced_at": "2026-09-25T07:04:32.856Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01866371"
    },
    {
      "nct_id": "NCT03201744",
      "title": "Prospective Randomized Trial of Moderate vs Deep Neuromuscular Blockade During Laparoscopic Ventral Hernia Repair",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hernia, Ventral",
        "Neuromuscular Blockade",
        "Pneumoperitoneum"
      ],
      "interventions": [
        {
          "name": "Patients will be randomized to moderate (TOF 1-2) or deep (post tetanic count 1-2) relaxation. Low pressure insufflation (start pressure set at 8 mm Hg)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Stony Brook University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 0,
      "start_date": "2017-08-29",
      "completion_date": "2022-02",
      "has_results": false,
      "last_update_posted_date": "2026-04-24",
      "last_synced_at": "2026-09-25T07:04:32.856Z",
      "location_count": 1,
      "location_summary": "Stony Brook, New York",
      "locations": [
        {
          "city": "Stony Brook",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03201744"
    },
    {
      "nct_id": "NCT06882356",
      "title": "The Glaucoma and Retinopathy Screening Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glaucoma"
      ],
      "interventions": [
        {
          "name": "AI-based glaucoma screening",
          "type": "DEVICE"
        },
        {
          "name": "IOP measurement",
          "type": "DEVICE"
        },
        {
          "name": "Virtual Reality Visual Field Testing",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Massachusetts Eye and Ear Infirmary",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 2000,
      "start_date": "2025-07-16",
      "completion_date": "2030-09",
      "has_results": false,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-09-25T07:04:32.856Z",
      "location_count": 7,
      "location_summary": "Boston, Massachusetts • Chelsea, Massachusetts • Lynn, Massachusetts + 2 more",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Chelsea",
          "state": "Massachusetts"
        },
        {
          "city": "Lynn",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06882356"
    },
    {
      "nct_id": "NCT03673644",
      "title": "Impact of Glaucoma and Visual Field Loss on Life Space",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Primary Open-angle Glaucoma"
      ],
      "interventions": [
        {
          "name": "Questionnaires",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 88,
      "start_date": "2018-10-09",
      "completion_date": "2026-05-30",
      "has_results": false,
      "last_update_posted_date": "2025-09-11",
      "last_synced_at": "2026-09-25T07:04:32.856Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03673644"
    }
  ]
}