{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Contrast+Sensitivity+Testing",
    "query": {
      "intervention": "Contrast Sensitivity Testing"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 33,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Contrast+Sensitivity+Testing&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T08:36:34.836Z",
  "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": "NCT00345085",
      "title": "Comparison of Higher Order Aberrations and Contrast Sensitivity Between Acrysof SN60AT, SN60WF and Restore Intraocular Lenses",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "Wavefront and Contrast Sensitivity",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2005-03",
      "completion_date": "2007-04",
      "has_results": false,
      "last_update_posted_date": "2014-07-25",
      "last_synced_at": "2026-09-04T08:36:34.836Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00345085"
    },
    {
      "nct_id": "NCT05582304",
      "title": "Role of Glare and Spectral Filtering on Contrast Sensitivity: A Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Acuity"
      ],
      "interventions": [
        {
          "name": "Test Lens",
          "type": "DEVICE"
        },
        {
          "name": "Control Lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johnson & Johnson Vision Care, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 40,
      "start_date": "2022-10-31",
      "completion_date": "2022-12-08",
      "has_results": true,
      "last_update_posted_date": "2024-01-31",
      "last_synced_at": "2026-09-04T08:36:34.836Z",
      "location_count": 1,
      "location_summary": "Athens, Georgia",
      "locations": [
        {
          "city": "Athens",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05582304"
    },
    {
      "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": "2026-09-04T08:36:34.836Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00469612"
    },
    {
      "nct_id": "NCT01889992",
      "title": "Cardiac Allograft Remodeling and Effects of Sirolimus",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cardiac Hypertrophy",
        "Immunosuppression"
      ],
      "interventions": [
        {
          "name": "Cardiac MRI",
          "type": "RADIATION"
        },
        {
          "name": "Coronary angiography with IVUS",
          "type": "PROCEDURE"
        },
        {
          "name": "Cardiac Allograft Remodeling",
          "type": "OTHER"
        },
        {
          "name": "M-TOR Immunosuppression",
          "type": "DRUG"
        },
        {
          "name": "Cardiac Biopsy C4D stain",
          "type": "PROCEDURE"
        },
        {
          "name": "Genetic Mechanism of M-TOR",
          "type": "GENETIC"
        },
        {
          "name": "Cardiopulmonary Exercise Test (CPET)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "PROCEDURE",
        "OTHER",
        "DRUG",
        "GENETIC"
      ],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "19 Years to 70 Years"
      },
      "enrollment_count": 42,
      "start_date": "2013-04-24",
      "completion_date": "2018-09-27",
      "has_results": false,
      "last_update_posted_date": "2023-08-30",
      "last_synced_at": "2026-09-04T08:36:34.836Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01889992"
    },
    {
      "nct_id": "NCT04041232",
      "title": "PBA Use for Treatment of ATF6-/- Patients",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "ACHROMATOPSIA 7",
        "Achromatopsia"
      ],
      "interventions": [
        {
          "name": "PBA",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2025-04-08",
      "completion_date": "2027-08",
      "has_results": false,
      "last_update_posted_date": "2025-09-12",
      "last_synced_at": "2026-09-04T08:36:34.836Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04041232"
    },
    {
      "nct_id": "NCT02028351",
      "title": "Vision Measured by the Vimetrics CVA Compared With Chart Testing Under Similar Luminance and Contrast Conditions",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Refractive Error",
        "Cataract",
        "Maculopathy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Sinclair Technologies, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2008-01",
      "completion_date": "2009-03",
      "has_results": false,
      "last_update_posted_date": "2014-01-07",
      "last_synced_at": "2026-09-04T08:36:34.836Z",
      "location_count": 1,
      "location_summary": "Elkins Park, Pennsylvania",
      "locations": [
        {
          "city": "Elkins Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02028351"
    },
    {
      "nct_id": "NCT03894527",
      "title": "Impact of Acute Exercise on Vascular Insulin Sensitivity in Metabolic Syndrome",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Metabolic Syndrome",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Single Bout of Exercise",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control Condition",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "40 Years to 70 Years"
      },
      "enrollment_count": 16,
      "start_date": "2019-02-18",
      "completion_date": "2020-01-31",
      "has_results": false,
      "last_update_posted_date": "2019-03-28",
      "last_synced_at": "2026-09-04T08:36:34.836Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03894527"
    },
    {
      "nct_id": "NCT01476644",
      "title": "How Has Glaucoma Affected Your Quality of Life?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glaucoma",
        "Quality of Life"
      ],
      "interventions": [
        {
          "name": "Clinical evaluation",
          "type": "OTHER"
        },
        {
          "name": "Performance based measures",
          "type": "OTHER"
        },
        {
          "name": "Subjective measures of vision-related quality of life",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 161,
      "start_date": "2011-10",
      "completion_date": "2017-06",
      "has_results": true,
      "last_update_posted_date": "2019-11-15",
      "last_synced_at": "2026-09-04T08:36:34.836Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01476644"
    },
    {
      "nct_id": "NCT06727097",
      "title": "Post-Stroke Sensory Reweighting on Walking and Balance Outcomes",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Ischemic Stroke"
      ],
      "interventions": [
        {
          "name": "Posturography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Walking Speed",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Instrumented 7M Timed UP and GO",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Fall Event Records",
          "type": "OTHER"
        },
        {
          "name": "MRI (3T)",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "University of Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 45,
      "start_date": "2024-11-01",
      "completion_date": "2027-08-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-02",
      "last_synced_at": "2026-09-04T08:36:34.836Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06727097"
    },
    {
      "nct_id": "NCT04112667",
      "title": "Functionally Validated Structural Endpoints for Early AMD",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Age-related Macular Degeneration",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Normal Macular Health",
          "type": "OTHER"
        },
        {
          "name": "Early Macular Degeneration",
          "type": "OTHER"
        },
        {
          "name": "Young Normals",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Cynthia Owsley",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "20 Years and older"
      },
      "enrollment_count": 556,
      "start_date": "2019-10-07",
      "completion_date": "2024-10-31",
      "has_results": false,
      "last_update_posted_date": "2025-09-26",
      "last_synced_at": "2026-09-04T08:36:34.836Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04112667"
    }
  ]
}