{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Single+Vision+Contact+Lens&page=2",
    "query": {
      "intervention": "Single Vision Contact Lens",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Single+Vision+Contact+Lens&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-14T18:41:14.197Z",
  "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": "NCT03544216",
      "title": "Accommodative Relief for Uncomfortable Non-Presbyopes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthenopia"
      ],
      "interventions": [
        {
          "name": "Multifocal Contact Lens",
          "type": "DEVICE"
        },
        {
          "name": "Single Vision Contact Lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "30 Years to 40 Years"
      },
      "enrollment_count": 84,
      "start_date": "2017-02-02",
      "completion_date": "2018-05-06",
      "has_results": true,
      "last_update_posted_date": "2019-02-15",
      "last_synced_at": "2026-09-14T18:41:14.197Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03544216"
    },
    {
      "nct_id": "NCT07300852",
      "title": "DSLT in Normal Tension Glaucoma (NTG) Asian Eyes",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Normal Tension Glaucoma (NTG)",
        "Glaucoma",
        "Open Angle Glaucoma (OAG)",
        "Glaucoma, Open Angle"
      ],
      "interventions": [
        {
          "name": "Direct Selective Laser Trabeculoplasty (DSLT)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Ngoc Nguyen Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "20 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2026-01-01",
      "completion_date": "2028-03-31",
      "has_results": false,
      "last_update_posted_date": "2025-12-24",
      "last_synced_at": "2026-09-14T18:41:14.197Z",
      "location_count": 1,
      "location_summary": "San Jose, California",
      "locations": [
        {
          "city": "San Jose",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07300852"
    },
    {
      "nct_id": "NCT03757039",
      "title": "Multifocal Visual Performance Study",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Presbyopia"
      ],
      "interventions": [
        {
          "name": "Multifocal soft contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Progressive addition lens spectacles",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "38 Years",
        "maximum_age": "58 Years",
        "sex": "ALL",
        "summary": "38 Years to 58 Years"
      },
      "enrollment_count": 42,
      "start_date": "2018-12-16",
      "completion_date": "2019-03-06",
      "has_results": true,
      "last_update_posted_date": "2020-03-25",
      "last_synced_at": "2026-09-14T18:41:14.197Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03757039"
    },
    {
      "nct_id": "NCT04806802",
      "title": "APIOC Sphere and APIOC Astigmatism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia",
        "Hyperopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "APIOC Sphere and APIOC Astigmatism",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Lentechs, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 50,
      "start_date": "2021-03-18",
      "completion_date": "2021-10-31",
      "has_results": false,
      "last_update_posted_date": "2022-01-19",
      "last_synced_at": "2026-09-14T18:41:14.197Z",
      "location_count": 6,
      "location_summary": "San Diego, California • Orlando, Florida • Lexington, Kentucky + 3 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Miamisburg",
          "state": "Ohio"
        },
        {
          "city": "New Albany",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04806802"
    },
    {
      "nct_id": "NCT03465748",
      "title": "Effectiveness of Orthokeratology in Myopia Control",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "OrthoK",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Illinois College of Optometry",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "13 Years",
        "sex": "ALL",
        "summary": "6 Years to 13 Years"
      },
      "enrollment_count": 45,
      "start_date": "2017-05-01",
      "completion_date": "2021-12-01",
      "has_results": true,
      "last_update_posted_date": "2023-09-28",
      "last_synced_at": "2026-09-14T18:41:14.197Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03465748"
    },
    {
      "nct_id": "NCT00950924",
      "title": "Optical Defocus to Stimulate Eye Elongation in Hyperopia",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hyperopia",
        "Refractive Error"
      ],
      "interventions": [
        {
          "name": "Simultaneous Vision Bifocal Soft Contact Lenses",
          "type": "DEVICE"
        },
        {
          "name": "Single Vision Soft Contact Lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Aller, Thomas A., OD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "5 Years to 12 Years"
      },
      "enrollment_count": 30,
      "start_date": "2015-01",
      "completion_date": "2022-01-01",
      "has_results": false,
      "last_update_posted_date": "2021-01-12",
      "last_synced_at": "2026-09-14T18:41:14.197Z",
      "location_count": 1,
      "location_summary": "San Bruno, California",
      "locations": [
        {
          "city": "San Bruno",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00950924"
    },
    {
      "nct_id": "NCT05159765",
      "title": "Progressive Myopia Treatment Evaluation for NaturalVue Multifocal Contact Lens Trial",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Single vision contact lenses",
          "type": "DEVICE"
        },
        {
          "name": "Multifocal contact lenses",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Visioneering Technologies, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "13 Years",
        "sex": "ALL",
        "summary": "7 Years to 13 Years"
      },
      "enrollment_count": 144,
      "start_date": "2022-01-22",
      "completion_date": "2026-02",
      "has_results": false,
      "last_update_posted_date": "2025-09-22",
      "last_synced_at": "2026-09-14T18:41:14.197Z",
      "location_count": 4,
      "location_summary": "Fresno, California • Deerfield, Illinois • New York, New York + 1 more",
      "locations": [
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Deerfield",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Bellaire",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05159765"
    },
    {
      "nct_id": "NCT03519490",
      "title": "Can Distance Center and Near Center Multifocal Contact Lenses Control Myopia Progression in Children?",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia",
        "Myopia, Progressive"
      ],
      "interventions": [
        {
          "name": "Hybrid Contact Lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Thomas A. Aller, OD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "14 Years",
        "sex": "ALL",
        "summary": "7 Years to 14 Years"
      },
      "enrollment_count": 0,
      "start_date": "2018-06-01",
      "completion_date": "2020-08-31",
      "has_results": false,
      "last_update_posted_date": "2019-07-05",
      "last_synced_at": "2026-09-14T18:41:14.197Z",
      "location_count": 1,
      "location_summary": "San Bruno, California",
      "locations": [
        {
          "city": "San Bruno",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03519490"
    },
    {
      "nct_id": "NCT04334369",
      "title": "Contact Lens and Myopia Control in Optometry School Students",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia, Progressive"
      ],
      "interventions": [
        {
          "name": "Proclear Single Vision Contact Lenses manufactured by CooperVision",
          "type": "DEVICE"
        },
        {
          "name": "Proclear Multifocal Contact Lenses manufactured by CooperVision",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Jeff Rabin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 0,
      "start_date": "2018-12-12",
      "completion_date": "2022-07-03",
      "has_results": false,
      "last_update_posted_date": "2022-07-07",
      "last_synced_at": "2026-09-14T18:41:14.197Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04334369"
    },
    {
      "nct_id": "NCT05308069",
      "title": "Contact Lens Optics and Visual Performance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Single vision contact lens",
          "type": "DEVICE"
        },
        {
          "name": "Multifocal contact lens",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "David A Berntsen, OD PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 24,
      "start_date": "2022-06-13",
      "completion_date": "2022-07-27",
      "has_results": false,
      "last_update_posted_date": "2022-08-09",
      "last_synced_at": "2026-09-14T18:41:14.197Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05308069"
    }
  ]
}