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Enrolling by Invitation

NCT Number: NCT06578884

A Prospective Clinical Investigation to Evaluate the Safety and Performance of 877PTY Toric IOL for Visual Correction of Corneal Astigmatism

Medicontur preloaded hydrophobic monofocal toric intraocular lenses (IOLs) are indicated to improve vision at far distance in adults with or without cataract and correction of pre-existing corneal astigmatism secondarily to removal of the crystalline lens.

The intraocular lens is intended to be surgically implanted into the eye with the purpose of restoring optical function in the aphakic eye to provide an optical system with high predictability of the precalculated dioptric power.

The investigation will be performed as a prospective, non-comparative, single arm study with a single center design. Patients will be enrolled who are assigned to be implanted with the 877PTY IOLs mono- or binocularly between January 2024 - June 2025.

Data from six visits will be collected:

* Visit 1: Screening and Baseline (up to 90 days prior to the surgery) * Visit 2: IOL implantation (Day 0) * Visit 3: Day 1 post-operatively (+/- 0 day) * Visit 4: Day 7 post-operatively (+/- 3 days) * Visit 5: Month 1 post-operatively (+/- 2 weeks) * Visit 6: Month 6 post-operatively (+/- 1 month)

Enrolling by Invitation

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Győr-Moson-Sopron Vármegyei Petz Aladár Egyetemi Oktató Kórház

Győr, 9024, Hungary

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • adult patients (18 years old and older);
  • cataract and/or corneal astigmatism diagnosis;
  • indication for cataract surgery or refractive lens exchange;
  • recommended cylinder correction with toric IOL with cylinder power ≥1.0D;
  • clear intraocular media other than cataract;
  • signed informed consent form;

Exclusion criteria

  • irregular astigmatism;
  • patients who are not targeted to emmetropia (predicted residual spherical equivalent and/or astigmatism is out of the range of ±0.5D and ±0.38D respectively);
  • any retinopathy or maculopathy that affects the vision;
  • iris neovascularization;
  • congenital eye abnormality affecting visual performance;
  • advanced glaucoma;
  • pseudoexfoliation syndrome affecting IOL stability;
  • amblyopia;
  • uveitis;
  • retinal detachment;
  • prior ocular surgery in personal medical history;
  • irregular corneal curvature or corneal diseases affecting visual performance;
  • high myopia (axial length ≥ 26,5 mm);
  • inadequate visualization of the fundus on preoperative examination;
  • dilated pupil size not large enough to visualize toric IOL axis markings postoperatively based on the Investigator's decision;
  • eye trauma in medical history;
  • instability of keratometry or biometry measurements;
  • prior corneal refractive surgery such as LASIK, PRK, or SMILE;
  • patients deemed ineligible by the investigator because of any systemic disease or treatment;
  • pregnancy or lactation;
  • current use of systemic steroids or external ophthalmic drugs;
  • concurrent participation in another drug or device investigation.

Intraoperative exclusions: the presence of the following intraoperative exclusion criteria will lead to the exclusion of the subject:

  • Any unexpected or serious intraoperative complication that makes IOL implantation impossible or results in implantation of another type of IOL that is outside the scope of this clinical trial.

Treatment and study plan

877PTY

Device

IOL implantation with 6-month follow-up period Monocular UDVA/CDVA Manifest Refraction (SPH, CYL, SEQ) Optical Biometry, Keratometry (K1, K2, AXL, ACD) IOL axis orientation determination Visual function questionnaire Glistening evaluation Tonometry Slit-Lamp examination Fundus visualization

Primary outcomes

  1. Primary Performance Endpoint - CDVA

    Time frame: 6 months postoperatively

    Visual acuity: monocular CDVA at 6 months after IOL implantation

Secondary outcomes

  1. Secondary Performance Endpoint - UDVA

    Time frame: 6 months postoperatively

    Visual acuity: monocular UDVA at 6 months after IOL implantation

  2. Secondary Performance Endpoint - Subjective CYL

    Time frame: 6 months postoperatively

    Subjective (manifest) cylinder and keratometric cylinder of the eye at 6 months postoperatively

  3. Secondary Performance Endpoint - Residual CYL and SEQ

    Time frame: 6 months postoperatively

    Residual manifest cylinder and spherical equivalent at 6 months postoperatively;

  4. Secondary Performance Endpoint - Rotational stability

    Time frame: 6 months postoperatively

    IOL rotational stability at 6 months after IOL implantation;

  5. Secondary Performance Endpoint - Injector handling

    Time frame: 6 months postoperatively

    Ease of IOL implantation and positioning at surgery;

  6. Secondary Performance Endpoint - Patient satisfaction (VFQ-25)

    Time frame: 6 months postoperatively

    Patient-reported visual functions: overall global vision rating, difficulty with near and distance vision activities, social functioning and role limitations, dependency on others, mental health symptoms due to vision, driving difficulties, limitations with peripheral and color vision, and ocular pain evaluated by visual function questionnaire at 6 months after IOL implantation.

  7. Secondary Performance Endpoint - Glistening

    Time frame: 6 months postoperatively

    Glistening rate and severity at 6 months after IOL implantation

Other outcomes

  1. Safety Endpoints - Intraoperative complications

    Time frame: Up to day 1 postoperatively

    Intraoperative complications of cataract surgery

    • Posterior capsular or zonular rupture
    • Vitreous loss/anterior vitrectomy or aspiration
    • Iris/ciliary body injury
    • Loss of nuclear material into vitreous
    • Suprachoroidal haemorrhage
    • Retrobulbar haemorrhage
  2. Safety Endpoints - Postoperative complications

    Time frame: Up to month 1 postoperatively

    Postoperative complications of cataract surgery

    • Cystoid macular oedema
    • Iris abnormalities
    • Corneal oedema
    • Wound leak or rupture
    • IOL dislocation, removal, or exchange
    • Inflammation (Endophthalmitis, anterior chamber cells, anterior chamber flare, hypopyon)
    • Retinal tear, break, or detachment
    • Persistent iritis
    • Elevated intraocular pressure
    • Pupillary block
    • Cornea status
  3. Safety Endpoints - Complications of IOL implantation

    Time frame: Up to month 6 postoperatively

    Complications of IOL implantation

    • Posterior capsular opacification (PCO)
    • Opacification, IOL discoloration

Sponsors and collaborators

Lead sponsor

Medicontur Medical Engineering Ltd

Industry

Registry information

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Aug 30, 2024
Registry last updated
Aug 30, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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