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Intraocular Lens Power Calculation Using Pre- and Intra-operative Measurements

NCT02513134 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 75

Last updated 2015-07-31

No results posted yet for this study

Summary

Recently a prototype of a combination of an anterior segment OCT (VISANTE; Carl Zeiss Meditec AG) and an operating microscope (OPMI 200; Carl Zeiss Meditec AG) was introduced that allows measurements of the crystalline lens as well as the lens capsule itself after removing the crystalline lens of cataract patients intra-operatively. This device uses OCT technology to create high resolution B-scans (=images) of the anterior segment of the eye. The OCT was shown to be highly reproducible for ACD measurements pre-operatively 12 and small changes of the IOL/crystalline lens can be detected 13.

In a previous study (EK-10-125-0710) that was recently published in the journal "Investigative Ophthalmology \& Visual Science" it was shown that intra-operative measurements of the anterior lens capsule improve the refractive outcome theoretically.14 However, in this previous study conventional eye models were used for IOL power calculation and only the intra-operative measurement replaced pre-operative ACD measurements.

Aim of this study is to observe, whether the postoperative refractive outcome could be improved theoretically by using both pre- and intra-operative measurements for retrospective IOL power calculation with new eye models.

Conditions

  • Cataract

Sponsors & Collaborators

  • Prim. Prof. Dr. Oliver Findl, MBA

    lead OTHER

Principal Investigators

  • Oliver Findl, Prof Dr · Vienna Institute for Research in Ocular Surgery

Eligibility

Min Age
21 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2014-06-30
Primary Completion
2015-01-31
Completion
2015-01-31

Countries

  • Austria

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02513134 on ClinicalTrials.gov