{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Corneal+Astigmatism",
    "query": {
      "condition": "Corneal Astigmatism"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 30,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Corneal+Astigmatism&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T08:12:02.044Z",
  "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": "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": "2026-05-22T08:12:02.044Z",
      "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": "2026-05-22T08:12:02.044Z",
      "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": "NCT00762281",
      "title": "Safety and Effectiveness Study of the MEL 80 Excimer Laser Using LASIK in the Treatment of Hyperopia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hyperopia"
      ],
      "interventions": [
        {
          "name": "MEL 80 Hyperopic LASIK Treatment",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Carl Zeiss Meditec, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 189,
      "start_date": "2004-07",
      "completion_date": "2008-10",
      "has_results": false,
      "last_update_posted_date": "2012-08-13",
      "last_synced_at": "2026-05-22T08:12:02.044Z",
      "location_count": 6,
      "location_summary": "San Diego, California • Greenwood Village, Colorado • Kansas City, Missouri + 3 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Greenwood Village",
          "state": "Colorado"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "Eugene",
          "state": "Oregon"
        },
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00762281"
    },
    {
      "nct_id": "NCT04210232",
      "title": "Post-market Study to Obtain Surgeon Feedback on Clinical Outcome in Eyes Implanted With TECNIS Toric II IOL",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cataract",
        "Corneal Astigmatism"
      ],
      "interventions": [
        {
          "name": "TECNIS® TORIC II Intraocular Lens (IOL)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Johnson & Johnson Surgical Vision, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 54,
      "start_date": "2020-01-14",
      "completion_date": "2020-09-11",
      "has_results": true,
      "last_update_posted_date": "2021-10-12",
      "last_synced_at": "2026-05-22T08:12:02.044Z",
      "location_count": 12,
      "location_summary": "Bakersfield, California • Sioux City, Iowa • Annapolis, Maryland + 9 more",
      "locations": [
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "Sioux City",
          "state": "Iowa"
        },
        {
          "city": "Annapolis",
          "state": "Maryland"
        },
        {
          "city": "Chevy Chase",
          "state": "Maryland"
        },
        {
          "city": "Birmingham",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04210232"
    },
    {
      "nct_id": "NCT00842231",
      "title": "Assessment of Visual Performance in Patients With Low Levels of Astigmatism",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cataract Extraction",
        "Corneal Astigmatism"
      ],
      "interventions": [
        {
          "name": "Visual performance measures",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "50 Years to 75 Years"
      },
      "enrollment_count": 40,
      "start_date": "2009-01",
      "completion_date": null,
      "has_results": true,
      "last_update_posted_date": "2010-09-28",
      "last_synced_at": "2026-05-22T08:12:02.044Z",
      "location_count": 1,
      "location_summary": "Fort Worth, Texas",
      "locations": [
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00842231"
    },
    {
      "nct_id": "NCT05561296",
      "title": "Astigmatism Management With Iris-registration Guided Corneal Relaxing Incisions or Toric IOLs During Cataract Surgery",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Astigmatism",
        "Cataract"
      ],
      "interventions": [
        {
          "name": "Femtosecond laser assisted cataract surgery with astigmatism management",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Kenneth J Rosenthal",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "95 Years",
        "sex": "ALL",
        "summary": "18 Years to 95 Years"
      },
      "enrollment_count": 50,
      "start_date": "2022-09",
      "completion_date": "2023-12",
      "has_results": false,
      "last_update_posted_date": "2022-09-30",
      "last_synced_at": "2026-05-22T08:12:02.044Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05561296"
    },
    {
      "nct_id": "NCT00542581",
      "title": "Acrysof Toric SN60T3corneal Astigmatism Between 0.75 and 1.00 D.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cataracts"
      ],
      "interventions": [
        {
          "name": "The Acrysof toric SN60T3 IOL",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 4,
      "start_date": "2007-10",
      "completion_date": "2008-12",
      "has_results": false,
      "last_update_posted_date": "2018-07-24",
      "last_synced_at": "2026-05-22T08:12:02.044Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00542581"
    },
    {
      "nct_id": "NCT01384773",
      "title": "Progressive Keratoconus or Ectasia Treatment Plan",
      "overall_status": "NO_LONGER_AVAILABLE",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "Keratoconus",
        "Ectasia"
      ],
      "interventions": [
        {
          "name": "Riboflavin Solution",
          "type": "OTHER"
        },
        {
          "name": "UV-X Illumination System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DEVICE"
      ],
      "sponsor": "Stephen Trokel",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "16 Years and older"
      },
      "enrollment_count": null,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2023-02-09",
      "last_synced_at": "2026-05-22T08:12:02.044Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01384773"
    },
    {
      "nct_id": "NCT01045733",
      "title": "A Comparison of Corneal Aberrations in Subjects With Contralateral AcrySof IQ Toric Intraocular Lens (IOL) and AcrySof IQ IOL With Limbal Relaxing Incision (LRI)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cataract",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "AcrySof IQ Toric IOL",
          "type": "DEVICE"
        },
        {
          "name": "AcrySof IQ Aspheric IOL",
          "type": "DEVICE"
        },
        {
          "name": "Limbal Relaxing Incision (LRI)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2009-12",
      "completion_date": "2011-05",
      "has_results": false,
      "last_update_posted_date": "2012-11-29",
      "last_synced_at": "2026-05-22T08:12:02.044Z",
      "location_count": 1,
      "location_summary": "Fort Worth, Texas",
      "locations": [
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01045733"
    },
    {
      "nct_id": "NCT05985304",
      "title": "Clinical Trial of a Hydrophilic EMV Toric Lens RAO210T in the Correction of Aphakia and Corneal Astigmatism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cataract",
        "Corneal Astigmatism"
      ],
      "interventions": [
        {
          "name": "RayOne EMV Toric IOL",
          "type": "DEVICE"
        },
        {
          "name": "RayOne Monofocal IOL",
          "type": "DEVICE"
        },
        {
          "name": "Cataract Surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "PROCEDURE"
      ],
      "sponsor": "Rayner Intraocular Lenses Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 274,
      "start_date": "2023-08-10",
      "completion_date": "2024-10-23",
      "has_results": true,
      "last_update_posted_date": "2026-01-21",
      "last_synced_at": "2026-05-22T08:12:02.044Z",
      "location_count": 9,
      "location_summary": "Fayetteville, Arkansas • Grand Junction, Colorado • Alexandria, Minnesota + 6 more",
      "locations": [
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Grand Junction",
          "state": "Colorado"
        },
        {
          "city": "Alexandria",
          "state": "Minnesota"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "West Fargo",
          "state": "North Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05985304"
    }
  ]
}