Arcuate Incisions With Light Adjustable Lens for Astigmatism Correction in Lens Surgery

NCT ID: NCT07140653

Last Updated: 2025-12-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE4

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-09-02

Study Completion Date

2026-09-02

Brief Summary

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This study aims to evaluate the safety and effectiveness of femtosecond laser arcuate corneal relaxing incisions (AK) combined with Light Adjustable Lens (LAL) implantation for correcting pre-existing corneal astigmatism in patients undergoing cataract or refractive lens exchange surgery. Postoperative assessments will focus on residual refractive astigmatism, visual outcomes, patient satisfaction, and the incidence of adverse events. Arcuate keratotomy and toric IOLs are well-established methods for astigmatism correction, and this study will compare their combined effectiveness using advanced femtosecond laser technology.

Detailed Description

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Conditions

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Astigmatism

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Femto arcs + LAL

Group Type OTHER

Femto arcs

Intervention Type OTHER

Femtosecond laser-assisted arcuate corneal relaxing incisions (AK) will be performed to correct astigmatism.

Light Adjustable Lens (LAL)

Intervention Type DEVICE

The LAL is intended to replace the natural lens at time of lens removal.

Interventions

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Femto arcs

Femtosecond laser-assisted arcuate corneal relaxing incisions (AK) will be performed to correct astigmatism.

Intervention Type OTHER

Light Adjustable Lens (LAL)

The LAL is intended to replace the natural lens at time of lens removal.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Subject must be aged ≥ 21 years at the time of eligibility visit.
2. Subject must have a vector difference of 0.50 D or less in magnitude of pre-operative anterior corneal astigmatism as measured by the Pentacam AXL and the Zeiss IOLMaster 700 (Carl Zeiss Meditec).
3. Subject must be able and willing to comply with the study examination procedures.
4. Astigmatic treatment must require paired arcs \<45mm in length.
5. Subject must be willing to complete the approved informed consent form.
6. Subject must have elected to undergo lens extraction and Light Adjustable Lens (LAL) implantation.
7. Subject must be willing and able to return for scheduled pre-op and follow-up examinations.
8. Subject must have central 7 mm of clear cornea without vascularization.

Exclusion Criteria

1. Subject who has undergone previous corneal or intraocular surgery in the eye to be treated.
2. Subject with a history, signs or symptoms of ocular disease or atypical findings that would be contraindicated under standard of care for lens extraction surgery.
3. Subject with neuro-ophthalmic disease.
4. Diabetic or hypertensive subject with clinical evidence of retinal pathology that the investigator believes will significantly affect visual outcomes.
5. Subject with macular degenerative pathology identified at the preoperative visit that the investigator believes will significantly affect visual outcomes.
6. Subject with a history of steroid-responsive rise in intraocular pressure (IOP), preoperative IOP \>25 mmHg, or uncontrolled glaucoma in either eye.
7. Subject with known lens/zonular instability.
8. Subject who cannot achieve dilated pupillary diameter \> 6 mm.
9. Subject with abnormal corneal topography, including evidence of forme fruste keratoconus, keratoconus or pellucid marginal degeneration.
10. Subject with posterior segment disease or degeneration.
11. Subject with corneal disease or pathology that precludes an adequate view for imaging or transmission of laser wavelength of light.
12. Subject with known sensitivity to planned perioperative standard of care medications.
13. Subject participating in any other ophthalmic drug or device clinical trial during the time of this clinical assessment.
14. Subject with known sensitivity to planned assessment concomitant medications.
15. Subjects with severe dry eye syndrome (DES) or history of ocular inflammation that may impact visual outcomes.
16. Subject with irregular astigmatism in the eye to be treated.
Minimum Eligible Age

21 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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LensAR Incorporated

INDUSTRY

Sponsor Role collaborator

Center For Sight

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Priya Mathews, MD

Role: PRINCIPAL_INVESTIGATOR

Center For Sight - Clinical Studies

Locations

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Center For Sight

Venice, Florida, United States

Site Status RECRUITING

Carolina Eyecare Physicians

Mt. Pleasant, South Carolina, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Helga P Sandoval

Role: CONTACT

Phone: 8438813937

Email: [email protected]

Facility Contacts

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Gina Thomas

Role: primary

Helga P Sandoval

Role: primary

Other Identifiers

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CFS 25-003

Identifier Type: -

Identifier Source: org_study_id