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Optical Biometry and Spherical Aberration in Ametropic and Emmetropic Eyes

NCT01663597 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 160

Last updated 2013-08-29

No results posted yet for this study

Summary

Aberrations play a significant role in the visual process and can be divided in lower-order and higher-order aberrations. The former can be measured using the commercially available IOL Master (Carl Zeiss Meditec AG, Germany) and have profound influence on visual acuity. Higher-order aberrations do not significantly influence visual acuity but affect the quality of vision and can cause halos, double vision, and night vision disturbances.

Background Cataract surgery has become a routine procedure in the developed countries. During this surgery, a foldable intraocular lens is usually inserted into the capsular bag. However, these lenses do not account for individual optical biometry data or aberrations. Therefore, it is important to provide data for ametropic and emmetropic eyes as this information might improve future intraocular lens design and lead to individually adapted lenses for yielding optimal visual acuity and quality results.

The aim of the present study is to clarify the correlation between refractive errors/axial eye length and spherical aberrations of the cornea.

Conditions

  • Refractive Errors
  • Axial Length, Eye
  • Corneal Wavefront Aberration

Sponsors & Collaborators

  • Medical University of Vienna

    lead OTHER

Eligibility

Min Age
40 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2012-08-31
Primary Completion
2013-05-31
Completion
2013-05-31

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 NCT01663597 on ClinicalTrials.gov