{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Disturbance%3B+Vision%2C+Loss",
    "query": {
      "condition": "Disturbance; Vision, Loss"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 66,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Disturbance%3B+Vision%2C+Loss&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T07:33:27.037Z",
  "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": "NCT00333879",
      "title": "Virtual Reality Mobility Training System for Veterans With Vision Loss",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Blindness"
      ],
      "interventions": [
        {
          "name": "Virtual Sound System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "US Department of Veterans Affairs",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4,
      "start_date": "2009-03",
      "completion_date": "2009-04",
      "has_results": true,
      "last_update_posted_date": "2013-12-16",
      "last_synced_at": "2026-06-11T07:33:27.037Z",
      "location_count": 1,
      "location_summary": "Decatur, Georgia",
      "locations": [
        {
          "city": "Decatur",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00333879"
    },
    {
      "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": "2026-06-11T07:33:27.037Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05454124"
    },
    {
      "nct_id": "NCT00867815",
      "title": "PDE5 Inhibitor Use and Non-arteritic Anterior Ischemic Optic Neuropathy (NAION)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Anterior Ischemic Optic Neuropathy"
      ],
      "interventions": [
        {
          "name": "Diagnostic procedures",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "40 Years and older · Male only"
      },
      "enrollment_count": 10,
      "start_date": "2009-07-13",
      "completion_date": "2018-03-28",
      "has_results": true,
      "last_update_posted_date": "2019-01-23",
      "last_synced_at": "2026-06-11T07:33:27.037Z",
      "location_count": 11,
      "location_summary": "Vista, California • Atlantis, Florida • Fort Myers, Florida + 7 more",
      "locations": [
        {
          "city": "Vista",
          "state": "California"
        },
        {
          "city": "Atlantis",
          "state": "Florida"
        },
        {
          "city": "Fort Myers",
          "state": "Florida"
        },
        {
          "city": "Fort Myers",
          "state": "Florida"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00867815"
    },
    {
      "nct_id": "NCT06578117",
      "title": "Statistical Learning as a Novel Intervention for Cortical Blindness",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke, Ischemic",
        "Hemianopia, Homonymous",
        "Hemianopsia",
        "Occipital Lobe Infarct",
        "Visual Field Defect, Peripheral",
        "Vision Loss Partial",
        "Quadrantanopia",
        "Stroke Hemorrhagic"
      ],
      "interventions": [
        {
          "name": "Vision Training and Learning Task",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 30,
      "start_date": "2024-11-06",
      "completion_date": "2027-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-01-30",
      "last_synced_at": "2026-06-11T07:33:27.037Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06578117"
    },
    {
      "nct_id": "NCT00720317",
      "title": "Diabetic Retinopathy and Sickle Trait",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Diabetic Retinopathy",
        "Sickle Cell Trait"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 48,
      "start_date": "2008-05",
      "completion_date": "2010-07",
      "has_results": false,
      "last_update_posted_date": "2010-09-16",
      "last_synced_at": "2026-06-11T07:33:27.037Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00720317"
    },
    {
      "nct_id": "NCT06349759",
      "title": "Safety and Efficacy of 0.75% Phentolamine Ophthalmic Solution in Subjects With Post-refractive Surgery Visual Disturbances",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Mesopic Vision",
        "Night Vision Loss"
      ],
      "interventions": [
        {
          "name": "phentolamine ophthalmic solution 0.75%, a non-selective alpha-1 and alpha-2 adrenergic antagonist",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ocuphire Pharma, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2024-04-01",
      "completion_date": "2026-02-19",
      "has_results": false,
      "last_update_posted_date": "2026-03-12",
      "last_synced_at": "2026-06-11T07:33:27.037Z",
      "location_count": 25,
      "location_summary": "Pheonix, Arizona • Scottsdale, Arizona • Bakersfield, California + 20 more",
      "locations": [
        {
          "city": "Pheonix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06349759"
    },
    {
      "nct_id": "NCT05176717",
      "title": "Study to Evaluate the Efficacy Safety and Tolerability of QR-421a in Subjects With RP Due to Mutations in Exon 13 of the USH2A Gene With Early to Moderate Vision Loss (Celeste)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Retinitis Pigmentosa",
        "Usher Syndrome Type 2",
        "Deaf Blind",
        "Retinal Disease",
        "Eye Diseases",
        "Eye Diseases, Hereditary",
        "Eye Disorders Congenital",
        "Vision Disorders"
      ],
      "interventions": [
        {
          "name": "QR-421a",
          "type": "DRUG"
        },
        {
          "name": "Sham-procedure",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Laboratoires Thea",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 5,
      "start_date": "2021-12-15",
      "completion_date": "2022-08-02",
      "has_results": true,
      "last_update_posted_date": "2024-08-07",
      "last_synced_at": "2026-06-11T07:33:27.037Z",
      "location_count": 2,
      "location_summary": "Dallas, Texas • Madison, Wisconsin",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05176717"
    },
    {
      "nct_id": "NCT04925687",
      "title": "Phase 1 Study of Intravitreal Autologous CD34+ Stem Cell Therapy for Retinitis Pigmentosa",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Retinitis Pigmentosa"
      ],
      "interventions": [
        {
          "name": "Intravitreal autologous CD34+ cells",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4,
      "start_date": "2021-06-01",
      "completion_date": "2023-11-01",
      "has_results": false,
      "last_update_posted_date": "2024-09-23",
      "last_synced_at": "2026-06-11T07:33:27.037Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04925687"
    },
    {
      "nct_id": "NCT03350919",
      "title": "Visual Restoration for Hemianopia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stroke Induced Vision Loss",
        "Hemianopia",
        "Quadrantanopia"
      ],
      "interventions": [
        {
          "name": "Training in the blind field",
          "type": "DEVICE"
        },
        {
          "name": "Training in the intact field",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 48,
      "start_date": "2018-03-15",
      "completion_date": "2019-12-03",
      "has_results": true,
      "last_update_posted_date": "2020-12-24",
      "last_synced_at": "2026-06-11T07:33:27.037Z",
      "location_count": 3,
      "location_summary": "Miami, Florida • Rochester, New York • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Rochester",
          "state": "New York"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03350919"
    },
    {
      "nct_id": "NCT03653715",
      "title": "Bifocal Contact Lens Study for Adults With Age-Related Near Vision Loss",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "Clerio Vision LIRIC-modified Bifocal Contact Lens",
          "type": "DEVICE"
        },
        {
          "name": "Johnson & Johnson 1-Day Acuvue Moist Multifocal Contact Lens",
          "type": "DEVICE"
        },
        {
          "name": "Johnson & Johnson 1-Day Acuvue Moist Contact Lens",
          "type": "DEVICE"
        },
        {
          "name": "Clerio Vision Single Vision Contact Lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Clerio Vision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2018-08-06",
      "completion_date": "2018-10-12",
      "has_results": false,
      "last_update_posted_date": "2019-04-19",
      "last_synced_at": "2026-06-11T07:33:27.037Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03653715"
    }
  ]
}