Detailed eye imaging after presbyopia‑correcting lens implantation using OCT and pyramid aberrometry

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational imaging study collects high-resolution anterior segment OCT biometry together with pyramidal wavefront measurements in eyes implanted with presbyopia‑correcting intraocular lenses. Investigators will correlate three‑dimensional anterior segment morphology with ocular wavefront data to characterize in vivo optical quality of pseudophakic eyes. The protocol uses spectral‑domain or swept‑source OCT and the Osiris‑T pyramidal wavefront sensor to derive internal lens aberrations and objective optical metrics. Results aim to link biometric eye models with non‑paraxial optical measurements to better understand lens performance.

Why it matters

Who can join: the full rules

Inclusion Criteria:

1. Men and women aged above 21 years with prior uncomplicated cataract/IOL exchange surgery
2. Willing to sign informed consent before measurements
3. Corrected distance visual acuity (CDVA) of 0.1 logMAR or better
4. Absence of corneal scars/dry eye disease that could falsify the light transmission of the study eye
5. Total absence of posterior capsule opacification or patients who already have undergone Nd:YAG capsulotomy
6. Absence of ocular comorbidity (Macular degeneration, glaucoma, amblyopia)

Exclusion Criteria:

1. Prior corneal refractive or ocular surgery
2. Posterior capsule opacification.
3. Keratometry between \<42.5 and \>45 D,
4. Corneal spherical aberration \> 0.4 microns 5) Angle kappa \> 0.4 mm

6\) Zonular weakness 7) Pseudoexfoliation syndrome 8) Eccentric fixation or insufficient ability to fixate (tremor, nystagmus) 9) Pregnancy

Where it's running

• Vienna Institute for Research in Ocular Surgery (VIROS), Hanusch Hospital Vienna
  Vienna, Austria Recruiting
• Vienna Institute for Research in Ocular Surgery (VIROS), Hanusch Hospital Vienna
  Vienna, Austria Recruiting

Study contacts

• Principal investigator: Oliver Findl, Prof., Dr. — Vienna Institute for Research in Ocular Surgery
• Study coordinator: Stefan Georgiev, MD, PhD
• Email: office@viros.at
• Phone: +43 1 91021

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.