{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Conventional+lenses",
    "query": {
      "intervention": "Conventional lenses"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 17,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Conventional+lenses&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-20T18:57:54.491Z",
  "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": "NCT04827147",
      "title": "Clinical Trial of Multi-Periscopic Prism Glasses for Hemianopia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Homonymous Hemianopia"
      ],
      "interventions": [
        {
          "name": "Multi-Periscopic Prism (MPP) glasses",
          "type": "DEVICE"
        },
        {
          "name": "Fresnel Peripheral Prism (FPP) glasses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Massachusetts Eye and Ear Infirmary",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "7 Years and older"
      },
      "enrollment_count": 64,
      "start_date": "2023-04-03",
      "completion_date": "2026-04-30",
      "has_results": true,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-09-20T18:57:54.491Z",
      "location_count": 8,
      "location_summary": "Birmingham, Alabama • Denver, Colorado • Palm Springs, Florida + 3 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Palm Springs",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04827147"
    },
    {
      "nct_id": "NCT04187157",
      "title": "Association Between Light Spectrum and Survival After Cataract Surgery",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cataract",
        "Age-related Cataract",
        "Circadian Rhythm Disorders",
        "Glaucoma",
        "Age Related Macular Degeneration"
      ],
      "interventions": [
        {
          "name": "Blue-light filtering intraocular lens",
          "type": "DEVICE"
        },
        {
          "name": "Conventional intraocular lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 10192,
      "start_date": "2012-01-01",
      "completion_date": "2019-04-30",
      "has_results": false,
      "last_update_posted_date": "2019-12-05",
      "last_synced_at": "2026-09-20T18:57:54.491Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04187157"
    },
    {
      "nct_id": "NCT03668067",
      "title": "Performance of 2WIN Photoscreener With Corneal Reflex Compared to School Bus Retinoscopy by AAPOS Guidelines",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Refractive Errors",
        "Amblyopia",
        "Strabismus",
        "Development Delay"
      ],
      "interventions": [
        {
          "name": "2WIN photoscreener",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Alaska Blind Child Discovery",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Week",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "1 Week to 90 Years"
      },
      "enrollment_count": 471,
      "start_date": "2018-04-02",
      "completion_date": "2018-10-31",
      "has_results": false,
      "last_update_posted_date": "2024-01-30",
      "last_synced_at": "2026-09-20T18:57:54.491Z",
      "location_count": 1,
      "location_summary": "Anchorage, Alaska",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03668067"
    },
    {
      "nct_id": "NCT00581659",
      "title": "Evaluation of the Bausch & Lomb PureVision Under Nighttime Driving Conditions",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Astigmatism"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Iowa",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "25 Years to 45 Years"
      },
      "enrollment_count": 40,
      "start_date": "2007-11",
      "completion_date": "2008-10",
      "has_results": false,
      "last_update_posted_date": "2017-04-28",
      "last_synced_at": "2026-09-20T18:57:54.491Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00581659"
    },
    {
      "nct_id": "NCT07176897",
      "title": "Refractive Accuracy of Toric Intraocular Lens Implantation Using Digital Marking Compared to Conventional Marking",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cataract",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Normal Toric IOL implantation with digital marking",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Colvard Kandavel Eye Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "50 Years to 90 Years"
      },
      "enrollment_count": 41,
      "start_date": "2024-06-01",
      "completion_date": "2025-03-12",
      "has_results": false,
      "last_update_posted_date": "2025-09-16",
      "last_synced_at": "2026-09-20T18:57:54.491Z",
      "location_count": 2,
      "location_summary": "Encino, California",
      "locations": [
        {
          "city": "Encino",
          "state": "California"
        },
        {
          "city": "Encino",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07176897"
    },
    {
      "nct_id": "NCT07495345",
      "title": "Feasibility Study of a Novel Automated Slit Lamp Camera (Lightfield Medical Ophthalmic Camera Model Vscan001)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Anterior Segment of Eye"
      ],
      "interventions": [
        {
          "name": "Lightfield Medical Vscan001 Automated Slit-lamp Camera",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Lightfield Medical",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 54,
      "start_date": "2023-07-01",
      "completion_date": "2024-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-03-27",
      "last_synced_at": "2026-09-20T18:57:54.491Z",
      "location_count": 1,
      "location_summary": "Golden Valley, Minnesota",
      "locations": [
        {
          "city": "Golden Valley",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07495345"
    },
    {
      "nct_id": "NCT00747227",
      "title": "Safety and Efficacy of a Violet Visible Light Blocking Intraocular Lens (IOL)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Cataract"
      ],
      "interventions": [
        {
          "name": "modified light transmission intraocular lens",
          "type": "DEVICE"
        },
        {
          "name": "monofocal acrylic intraocular lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Abbott Medical Optics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 250,
      "start_date": "2006-12",
      "completion_date": "2009-06",
      "has_results": true,
      "last_update_posted_date": "2011-11-11",
      "last_synced_at": "2026-09-20T18:57:54.491Z",
      "location_count": 11,
      "location_summary": "Scottsdale, Arizona • Rogers, Arkansas • New Haven, Connecticut + 8 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Rogers",
          "state": "Arkansas"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Bloomington",
          "state": "Minnesota"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00747227"
    },
    {
      "nct_id": "NCT01468337",
      "title": "Topical Interferon Gamma-1b for Central Serous Chorioretinopathy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Retinal Disease",
        "Macular Disease"
      ],
      "interventions": [
        {
          "name": "Interferon gamma-1b",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Eye Institute (NEI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 5,
      "start_date": "2011-10",
      "completion_date": "2014-02",
      "has_results": true,
      "last_update_posted_date": "2024-01-30",
      "last_synced_at": "2026-09-20T18:57:54.491Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01468337"
    },
    {
      "nct_id": "NCT00894192",
      "title": "Comprehensive Evaluation of Visual Function",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Visual Function"
      ],
      "interventions": [
        {
          "name": "Izon Wavefront-guided lenses",
          "type": "DEVICE"
        },
        {
          "name": "Conventional lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The Chicago Lighthouse",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 300,
      "start_date": "2009-02",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2009-05-06",
      "last_synced_at": "2026-09-20T18:57:54.491Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00894192"
    },
    {
      "nct_id": "NCT02513745",
      "title": "Conventional Surgery vs. Verion/VerifEye",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cataract",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Conventional",
          "type": "DEVICE"
        },
        {
          "name": "Refractive Cataract Suite (Verion + ORA)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Carolina Eyecare Physicians, LLC",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 84,
      "start_date": "2015-06",
      "completion_date": "2017-05-05",
      "has_results": true,
      "last_update_posted_date": "2019-09-04",
      "last_synced_at": "2026-09-20T18:57:54.491Z",
      "location_count": 1,
      "location_summary": "Mt. Pleasant, South Carolina",
      "locations": [
        {
          "city": "Mt. Pleasant",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02513745"
    }
  ]
}