Intraocular Lens (IOL) Calculation Improvement

This study has been terminated.
(slow recruitment)
Information provided by (Responsible Party):
University Hospital, Basel, Switzerland Identifier:
First received: June 7, 2011
Last updated: January 7, 2015
Last verified: January 2015
Intraocular Lens (IOL) formulas sometimes differ from expected. Using novel measurement methods before and after cataract surgery improved formulas are tried be developed.

Condition Intervention
Other: biometry calculation

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Intraocular Lens (IOL) Formula Calculation Improvement

Resource links provided by NLM:

Further study details as provided by University Hospital, Basel, Switzerland:

Primary Outcome Measures:
  • postoperative refraction (Diopters) [ Time Frame: 2 years ] [ Designated as safety issue: No ]

Enrollment: 11
Study Start Date: April 2011
Study Completion Date: May 2013
Primary Completion Date: May 2013 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
cataract patients
cataract patients
Other: biometry calculation


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
cataract patients

Inclusion Criteria:

  • older 18
  • clear cornea
  • cataract
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01372657

Augenzentrum Bahnhof Basel
Basel, Basel-Stadt, Switzerland, 4051
Sponsors and Collaborators
University Hospital, Basel, Switzerland
Study Director: David Goldblum, MD University Basel
  More Information

Responsible Party: University Hospital, Basel, Switzerland Identifier: NCT01372657     History of Changes
Other Study ID Numbers: EK 304/10 
Study First Received: June 7, 2011
Last Updated: January 7, 2015
Health Authority: Switzerland: Ethikkommission

Keywords provided by University Hospital, Basel, Switzerland:
formula processed this record on May 26, 2016