{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vision%2C+Subnormal",
    "query": {
      "condition": "Vision, Subnormal"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 104,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vision%2C+Subnormal&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T04:51:33.542Z",
  "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": "NCT00494676",
      "title": "Clinical Trial of Peripheral Prism Glasses for Hemianopia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Homonymous Hemianopia"
      ],
      "interventions": [
        {
          "name": "High power (57 prism diopter) peripheral prism glasses",
          "type": "DEVICE"
        },
        {
          "name": "Low power sham peripheral prism glasses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alexandra Bowers",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 73,
      "start_date": "2007-09",
      "completion_date": "2010-04",
      "has_results": true,
      "last_update_posted_date": "2017-04-04",
      "last_synced_at": "2026-06-11T04:51:33.542Z",
      "location_count": 12,
      "location_summary": "Birmingham, Alabama • Palo Alto, California • Jupiter, Florida + 9 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Jupiter",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00494676"
    },
    {
      "nct_id": "NCT05454124",
      "title": "Factors in Learning And Plasticity: Macular Degeneration",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Central Visual Impairment",
        "Macular Degeneration"
      ],
      "interventions": [
        {
          "name": "Training visual sensitivity",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Combination training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 60,
      "start_date": "2022-11-01",
      "completion_date": "2026-11",
      "has_results": false,
      "last_update_posted_date": "2026-02-09",
      "last_synced_at": "2026-06-11T04:51:33.542Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05454124"
    },
    {
      "nct_id": "NCT03728660",
      "title": "Design and Clinical Evaluation of a Smartphone-based Low Vision Enhancement System",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Low Vision"
      ],
      "interventions": [
        {
          "name": "Virtual bioptic magnification with large field of view",
          "type": "DEVICE"
        },
        {
          "name": "Full field magnification with small field of view",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "14 Years to 100 Years"
      },
      "enrollment_count": 88,
      "start_date": "2019-01-29",
      "completion_date": "2021-02-05",
      "has_results": false,
      "last_update_posted_date": "2021-02-16",
      "last_synced_at": "2026-06-11T04:51:33.542Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03728660"
    },
    {
      "nct_id": "NCT06805474",
      "title": "A Prospective Observational Study to Assess the Reliability and Validity of the MLSDT",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Macular Degeneration",
        "Geographic Atrophy",
        "Stargardt Disease"
      ],
      "interventions": [
        {
          "name": "Observational",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Nanoscope Therapeutics Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2025-01-28",
      "completion_date": "2025-05-27",
      "has_results": false,
      "last_update_posted_date": "2025-03-24",
      "last_synced_at": "2026-06-11T04:51:33.542Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06805474"
    },
    {
      "nct_id": "NCT02019927",
      "title": "Electric Stimulation of the Eye to Improve Vision After Trauma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Non-arteritic Anterior Ischemic Optic Neuropathy (NAION)",
        "Trauma",
        "Multiple Sclerosis (MS)"
      ],
      "interventions": [
        {
          "name": "Transcorneal Electrical Stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Sham",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 97,
      "start_date": "2013-07",
      "completion_date": "2017-09",
      "has_results": true,
      "last_update_posted_date": "2020-01-18",
      "last_synced_at": "2026-06-11T04:51:33.542Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02019927"
    },
    {
      "nct_id": "NCT07380256",
      "title": "Visual Influences on Vestibular Adaptation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vestibular Hypofunction",
        "Binocular Vision Abnormalities",
        "Reduced Vision"
      ],
      "interventions": [
        {
          "name": "StableEyes: Incremental Vestibulo-Ocular Reflex Adaptation (IVA)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Emory 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": 100,
      "start_date": "2026-02-04",
      "completion_date": "2029-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-17",
      "last_synced_at": "2026-06-11T04:51:33.542Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07380256"
    },
    {
      "nct_id": "NCT00760240",
      "title": "Ability of Patients With Low Vision to Properly Instill Eye Drops",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Glaucoma",
        "Retinal Pathology"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mid-Atlantic Glaucoma Experts",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2008-09",
      "completion_date": "2009-09",
      "has_results": false,
      "last_update_posted_date": "2010-04-26",
      "last_synced_at": "2026-06-11T04:51:33.542Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00760240"
    },
    {
      "nct_id": "NCT02102958",
      "title": "Nonvisual Foot Examination for People With Diabetes and Visual Impairment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes",
        "Visual Impairment"
      ],
      "interventions": [
        {
          "name": "DSME with Nonvisual Foot Examination",
          "type": "BEHAVIORAL"
        },
        {
          "name": "DSME with Usual Foot Examination Instruction",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Case Western Reserve University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 57,
      "start_date": "2011-07",
      "completion_date": "2013-12",
      "has_results": false,
      "last_update_posted_date": "2023-11-14",
      "last_synced_at": "2026-06-11T04:51:33.542Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02102958"
    },
    {
      "nct_id": "NCT03174314",
      "title": "Feasibility and Efficacy of Assisstive Tactile and Auditory Communicating Devices",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Impairment"
      ],
      "interventions": [
        {
          "name": "Standard object battery and training sequence",
          "type": "BEHAVIORAL"
        },
        {
          "name": "VIS4ION System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DEVICE"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 120,
      "start_date": "2017-07-26",
      "completion_date": "2024-07-23",
      "has_results": false,
      "last_update_posted_date": "2025-05-30",
      "last_synced_at": "2026-06-11T04:51:33.542Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03174314"
    },
    {
      "nct_id": "NCT02983305",
      "title": "Optical Head-Mounted Display Technology for Low Vision Rehabilitation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Retinal Dystrophies",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Head-Mounted Display",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2017-06-26",
      "completion_date": "2018-11-21",
      "has_results": true,
      "last_update_posted_date": "2019-10-09",
      "last_synced_at": "2026-06-11T04:51:33.542Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02983305"
    }
  ]
}