Study

Not yet recruiting Not a phased study

Sources: ClinicalTrials.gov Checked: 11 October 2026 Not medical advice

This trial at a glance

Status Not yet recruiting
Phase Not a phased study
Sponsor Carl Zeiss Meditec AG
Registry number NCT06960785
Started 1 May 2025 Today 16 October 2026 Estimated completion 1 January 2026

Past estimated completion. The registry still lists this trial as open, and the date it gave for finishing has been and gone. Confirm with the official record before you act on it.

Where this trial is running

Trial sites and the status recorded for each
SiteCityState or countryStatus at this site
Eye Laser Specialists Melbourne VIC Status not stated
Crystal Eye and laser Center Craigie WA Status not stated

voxsanity.com.au · trial sites from public registries · registry record synced 11 October 2026 · not medical advice

Who can join

Age 45 Years to 65 Years
Sex Anyone, regardless of sex
Healthy volunteers Not accepted
Enrolment target 75

The official eligibility criteria

Registry text, reproduced exactly. These are the words the trial's sponsor published on ClinicalTrials.gov. They have not been edited, shortened or rewritten, and they are written for researchers rather than for patients.

Inclusion Criteria:

1. Subjects between 45 and 65 years old

2. Scheduled to undergo bilateral LASIK treatment with PRESBYOND

3. Preoperative corrected distance visual acuity of 20/20 Snellen or better in each eye

4. Normal corneal topography in each eye

5. Discontinue use of contact lenses at least 1 month for hard contacts and 1 week for soft lenses prior to the preoperative examination

6. Residual stromal thickness ≥250 microns in each eye

7. Availability, willingness, to comply with examination follow up visits

8. Signed informed consent and data protection documents

9. Patients successfully passed the tolerance test

Exclusion Criteria:

1. Mixed astigmatism in any eye

2. Irregular corneal astigmatism in any eye

3. Clinically significant ocular surface disease in any eye

4. History of ocular surgery, ocular pathology, or other significant ocular findings that, in the Investigator's opinion, may increase the patient's risk for corneal refractive surgery or affect potential visual outcomes in each eye

5. Prior corneal refractive surgery (SMILE, LASIK, LASEK, RK, PRK, etc,) in each eye

6. Amblyopia, strabismus, nystagmus, forme fruste keratoconus in any eye

7. Clinically significant pupil abnormalities in any eye

8. Use of systemic or ocular medications that may affect visual outcomes

9. Systemic pathology that may affect the results of the study

10. Pregnancy or being treated for conditions associated with hormonal fluctuation

11. Participation in another clinical trial in the last 30 days

Dates on the record

Started 1 May 2025
Estimated completion 1 January 2026
Registry last updated 7 May 2025
Checked by Voxsanity 11 October 2026

Results, publications and the official record

Sources and dates

  • ClinicalTrials.gov – the record this page reformats
  • ClinicalTrials.gov processing date: 7 May 2025.
  • This page last checked by Voxsanity: 11 October 2026.

Voxsanity reformats data from public registries into this layout. It does not edit, interpret or add to what the registry published.

Not medical advice.

Individual trial records are refreshed on a rolling basis rather than all at once, so a record may be up to several weeks old. Each trial page and trial card shows the date its own record was last synced. Where a record has lagged, its status, sites and enrolment can differ from the current registry state in either direction, so check the registry link on the trial page before acting on them.

Letter for your doctor

A one-page summary of this trial to print or email to your GP. It carries the registry's own record of the trial and its eligibility criteria, and nothing Voxsanity has written about whether it suits you.