{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+Performance+tests&page=3",
    "query": {
      "intervention": "Visual Performance tests",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 60,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+Performance+tests&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Visual+Performance+tests&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-21T09:35:06.423Z",
  "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": "NCT06431295",
      "title": "Evaluation of a Digital Visual Acuity Device vs. Standard Visual Acuity Measurements",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Acuity"
      ],
      "interventions": [
        {
          "name": "FaceScan",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2027-10-01",
      "completion_date": "2029-06",
      "has_results": false,
      "last_update_posted_date": "2025-11-19",
      "last_synced_at": "2026-10-21T09:35:06.423Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06431295"
    },
    {
      "nct_id": "NCT00923078",
      "title": "Neurophysiological Targets for Cognitive Training in Schizophrenia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "Auditory Cognitive Training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Visual Cognitive Training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 60,
      "start_date": "2010-11",
      "completion_date": "2014-10",
      "has_results": true,
      "last_update_posted_date": "2017-12-22",
      "last_synced_at": "2026-10-21T09:35:06.423Z",
      "location_count": 1,
      "location_summary": "West Haven, Connecticut",
      "locations": [
        {
          "city": "West Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00923078"
    },
    {
      "nct_id": "NCT04577573",
      "title": "Cognitive-based Prosthetics to Improve Grasp and Reaching After SCI",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injuries",
        "Hand Weakness"
      ],
      "interventions": [
        {
          "name": "Cognition glove",
          "type": "DEVICE"
        },
        {
          "name": "Sensory brace",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 13,
      "start_date": "2021-05-17",
      "completion_date": "2023-11-30",
      "has_results": true,
      "last_update_posted_date": "2025-04-25",
      "last_synced_at": "2026-10-21T09:35:06.423Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04577573"
    },
    {
      "nct_id": "NCT03502603",
      "title": "Pilot Study of New Computer-based Neuropsychological Tool: Visual Tests, Touch Responses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cerebral Neurological Illness"
      ],
      "interventions": [
        {
          "name": "Railroad Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Swamp Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Presidents Recognition Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Judgment of Line Orientation",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Symbol Span subtest of the Wechsler Memory Scale-IV",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Information subtest of the Wechsler Adult Intelligence Scale-IV:",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Digit Span subtest of the Wechsler Adult Intelligence Scale-I",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Reading subtest of the Wide Range Achievement Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Symbol Digit Modalities Test:",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Dot Counting Test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 137,
      "start_date": "2019-05-10",
      "completion_date": "2023-12-06",
      "has_results": false,
      "last_update_posted_date": "2025-04-09",
      "last_synced_at": "2026-10-21T09:35:06.423Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03502603"
    },
    {
      "nct_id": "NCT06606925",
      "title": "Determining Which Regions of the Brain Are Active During Flight Simulation at Separate Timepoints During Training",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cognitive Performance"
      ],
      "interventions": [
        {
          "name": "fMRI with virtual reality flight simulator",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "The Geneva Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "54 Years",
        "sex": "ALL",
        "summary": "18 Years to 54 Years"
      },
      "enrollment_count": 35,
      "start_date": "2023-09-19",
      "completion_date": "2026-07-10",
      "has_results": false,
      "last_update_posted_date": "2026-07-15",
      "last_synced_at": "2026-10-21T09:35:06.423Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06606925"
    },
    {
      "nct_id": "NCT05480904",
      "title": "Characterizing Sleep Among Long-term Survivors of Childhood Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "ALL, Adult",
        "CNS Tumor",
        "Solid Tumor"
      ],
      "interventions": [
        {
          "name": "Neurocognitive (Thinking) Testing",
          "type": "OTHER"
        },
        {
          "name": "CNS Vital Signs (Thinking) Testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Health Questionnaires, Sleep Surveys & Sleep Diary",
          "type": "OTHER"
        },
        {
          "name": "Echocardiography/EKG",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Pulmonary Function",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Remote Polysomnography",
          "type": "DEVICE"
        },
        {
          "name": "Physical Function",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIAGNOSTIC_TEST",
        "DEVICE"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 199,
      "start_date": "2023-04-17",
      "completion_date": "2027-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-10-21T09:35:06.423Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05480904"
    },
    {
      "nct_id": "NCT04786886",
      "title": "Patient Performance and Acceptance of Virtual Reality Visual Field Devices",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Field Defect, Peripheral",
        "Visual Field Defect, Nasal Step",
        "Visual Field Defect, Paracentral Scotoma of Both Eyes"
      ],
      "interventions": [
        {
          "name": "VIrtual Reality Visual Field Exam",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "13 Years and older"
      },
      "enrollment_count": 58,
      "start_date": "2019-11-04",
      "completion_date": "2021-02-02",
      "has_results": false,
      "last_update_posted_date": "2021-03-08",
      "last_synced_at": "2026-10-21T09:35:06.423Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04786886"
    },
    {
      "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": "2026-10-21T09:35:06.423Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03757039"
    },
    {
      "nct_id": "NCT00469612",
      "title": "Evaluating NeuroVision's Neural Vision Correction (NVC) Myopia Treatment",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "NeuroVision's NVC treatment for Low Myopia",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "18 Years to 59 Years"
      },
      "enrollment_count": 2,
      "start_date": "2007-06",
      "completion_date": "2009-12-01",
      "has_results": true,
      "last_update_posted_date": "2018-09-25",
      "last_synced_at": "2026-10-21T09:35:06.423Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00469612"
    },
    {
      "nct_id": "NCT02468856",
      "title": "Effect of Armodafinil on Simulated Driving",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "armodafinil",
          "type": "DRUG"
        },
        {
          "name": "Placebo (for armodafinil)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 12,
      "start_date": "2017-05-21",
      "completion_date": "2017-11-30",
      "has_results": false,
      "last_update_posted_date": "2018-12-31",
      "last_synced_at": "2026-10-21T09:35:06.423Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02468856"
    }
  ]
}