{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Astigmatism",
    "query": {
      "condition": "Astigmatism"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 179,
    "total_pages": 18,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Astigmatism&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T05:12:29.249Z",
  "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": "NCT01454843",
      "title": "LASIK Using the Alcon Allegretto Wavefront-Guided Excimer Laser vs AMO Visx Wavefront-Guided Excimer Laser",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Wavefront-guided LASIK - Allegretto",
          "type": "PROCEDURE"
        },
        {
          "name": "Wavefront-guided LASIK - AMO",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "21 Years to 60 Years"
      },
      "enrollment_count": 60,
      "start_date": "2009-04-01",
      "completion_date": "2012-06-23",
      "has_results": false,
      "last_update_posted_date": "2022-04-11",
      "last_synced_at": "2026-05-22T05:12:29.249Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01454843"
    },
    {
      "nct_id": "NCT05713552",
      "title": "Evaluation of ACUVUE® OASYS 1-Day for Astigmatism Contact Lenses With Alternative Lidstock",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ocular Physiology"
      ],
      "interventions": [
        {
          "name": "Acuvue Oasys 1 Day for Astigmatism with Legacy lidstock",
          "type": "DEVICE"
        },
        {
          "name": "Acuvue Oasys 1 Day for Astigmatism with Amcor laminated lidstock",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johnson & Johnson Vision Care, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 31,
      "start_date": "2023-01-30",
      "completion_date": "2023-02-09",
      "has_results": true,
      "last_update_posted_date": "2024-03-05",
      "last_synced_at": "2026-05-22T05:12:29.249Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05713552"
    },
    {
      "nct_id": "NCT03579433",
      "title": "Postmarket Study of an Intraocular Lens Power Selection System",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cataract"
      ],
      "interventions": [
        {
          "name": "ORA with VerifEye+",
          "type": "DEVICE"
        },
        {
          "name": "Alcon Barrett Toric Calculator",
          "type": "OTHER"
        },
        {
          "name": "Acrysof® IQ Toric IOL",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 124,
      "start_date": "2018-08-16",
      "completion_date": "2019-04-16",
      "has_results": true,
      "last_update_posted_date": "2020-04-07",
      "last_synced_at": "2026-05-22T05:12:29.249Z",
      "location_count": 9,
      "location_summary": "Mt. Dora, Florida • Panama City, Florida • Poughkeepsie, New York + 6 more",
      "locations": [
        {
          "city": "Mt. Dora",
          "state": "Florida"
        },
        {
          "city": "Panama City",
          "state": "Florida"
        },
        {
          "city": "Poughkeepsie",
          "state": "New York"
        },
        {
          "city": "Kingston",
          "state": "Pennsylvania"
        },
        {
          "city": "Florence",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03579433"
    },
    {
      "nct_id": "NCT01893671",
      "title": "Corneal Power, Astigmatism, and Aberration Changes After LASIK",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Measurements of Patients Using OCT Before and After LASIK"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 22,
      "start_date": "2011-01",
      "completion_date": "2017-08-31",
      "has_results": false,
      "last_update_posted_date": "2018-04-05",
      "last_synced_at": "2026-05-22T05:12:29.249Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01893671"
    },
    {
      "nct_id": "NCT01496066",
      "title": "Calhoun Vision Light Adjustable Lens (LAL) in Subjects With Pre-Existing Corneal Astigmatism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cataract"
      ],
      "interventions": [
        {
          "name": "LAL (Light Adjustable Lens) and Light Deliver Device (LDD)",
          "type": "DEVICE"
        },
        {
          "name": "Monofocal control IOL",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Calhoun Vision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 600,
      "start_date": "2011-12",
      "completion_date": "2016-06",
      "has_results": true,
      "last_update_posted_date": "2018-06-29",
      "last_synced_at": "2026-05-22T05:12:29.249Z",
      "location_count": 17,
      "location_summary": "Fayetteville, Arkansas • Los Angeles, California • Torrance, California + 14 more",
      "locations": [
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Sebring",
          "state": "Florida"
        },
        {
          "city": "Orland Park",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01496066"
    },
    {
      "nct_id": "NCT06266728",
      "title": "T30 for Astigmatism in Digital Device Users",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Contact Lens Complication",
        "Astigmatism",
        "Refractive Errors"
      ],
      "interventions": [
        {
          "name": "Total30 for Astigmatism Contact Lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Southern College of Optometry",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 48,
      "start_date": "2024-03-15",
      "completion_date": "2024-08-18",
      "has_results": false,
      "last_update_posted_date": "2025-02-24",
      "last_synced_at": "2026-05-22T05:12:29.249Z",
      "location_count": 2,
      "location_summary": "Pittsburg, Kansas • Coldwater, Mississippi",
      "locations": [
        {
          "city": "Pittsburg",
          "state": "Kansas"
        },
        {
          "city": "Coldwater",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06266728"
    },
    {
      "nct_id": "NCT05933772",
      "title": "Performance Evaluation of Two Silicone Hydrogel Toric Lens Designs in Habitual Soft Contact Lens Wearers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Lens A (comfilcon A toric lens)",
          "type": "DEVICE"
        },
        {
          "name": "Lens B (lehfilcon A toric lens)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision International Limited (CVIL)",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 50,
      "start_date": "2023-08-18",
      "completion_date": "2023-12-28",
      "has_results": true,
      "last_update_posted_date": "2025-03-11",
      "last_synced_at": "2026-05-22T05:12:29.249Z",
      "location_count": 3,
      "location_summary": "Pittsburg, Kansas • Vestal, New York • Granville, Ohio",
      "locations": [
        {
          "city": "Pittsburg",
          "state": "Kansas"
        },
        {
          "city": "Vestal",
          "state": "New York"
        },
        {
          "city": "Granville",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05933772"
    },
    {
      "nct_id": "NCT02193178",
      "title": "Multicenter Dispensing Study of Biofinity Toric Made-To-Order Lenses in Extended Power Ranges",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "comfilcon A Toric",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "CooperVision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2014-07",
      "completion_date": "2016-04",
      "has_results": true,
      "last_update_posted_date": "2020-07-29",
      "last_synced_at": "2026-05-22T05:12:29.249Z",
      "location_count": 2,
      "location_summary": "Bloomington, Indiana • Houston, Texas",
      "locations": [
        {
          "city": "Bloomington",
          "state": "Indiana"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02193178"
    },
    {
      "nct_id": "NCT05796453",
      "title": "Post Market Clinical Follow-up (PMCF) Study of Clareon Vivity & Clareon PanOptix",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aphakia",
        "Astigmatism",
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "Clareon Vivity IOL - Non Toric",
          "type": "DEVICE"
        },
        {
          "name": "Clareon Vivity IOL - Toric",
          "type": "DEVICE"
        },
        {
          "name": "Clareon PanOptix Trifocal IOL - Non Toric",
          "type": "DEVICE"
        },
        {
          "name": "Clareon PanOptix Trifocal IOL - Toric",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 470,
      "start_date": "2023-09-19",
      "completion_date": "2028-06",
      "has_results": false,
      "last_update_posted_date": "2025-08-14",
      "last_synced_at": "2026-05-22T05:12:29.249Z",
      "location_count": 6,
      "location_summary": "Torrance, California • Jacksonville, Florida • Liverpool, New York + 3 more",
      "locations": [
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Liverpool",
          "state": "New York"
        },
        {
          "city": "Tulsa",
          "state": "Oklahoma"
        },
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05796453"
    },
    {
      "nct_id": "NCT03733730",
      "title": "Post Approval Study of the AcrySof® IQ ReSTOR® Toric IOLs",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Aphakia",
        "Presbyopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "ACRYSOF IQ RESTOR +3.0 Multifocal Toric IOL",
          "type": "DEVICE"
        },
        {
          "name": "ACRYSOF IQ RESTOR +2.5 D Multifocal Toric IOL",
          "type": "DEVICE"
        },
        {
          "name": "ACRYSOF IQ RESTOR +2.5 D Multifocal IOL",
          "type": "DEVICE"
        },
        {
          "name": "Cataract Surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 2449,
      "start_date": "2018-11-27",
      "completion_date": "2022-10-14",
      "has_results": true,
      "last_update_posted_date": "2023-11-01",
      "last_synced_at": "2026-05-22T05:12:29.249Z",
      "location_count": 37,
      "location_summary": "Dothan, Alabama • Phoenix, Arizona • Fresno, California + 32 more",
      "locations": [
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Laguna Hills",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03733730"
    }
  ]
}