NCT03832335|UnknownDMC
A New Measurement of Anseikonia Tolerance
Can we Measure Aniseikonia Tolerance in a Normal Population
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Can we Measure Aniseikonia Tolerance in a Normal Population
Sponsor study identifier
observational
31
1 country
1
Study Start
July 2015
Actual (reported)Primary Completion
August 2, 2019
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
December 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Population 1: Measure the effect of size glasses from1-9% on stereopsis Population 2: Measure the effect of size glasses from 1-9% on stereopsis in two settings:
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
December 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
July 2015
Actual (reported)January 31, 2019
Actual (reported)February 6, 2019
Actual (reported)August 2, 2019
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
December 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Aniseikonia tolerance
How many percent aniseikonia is tolerated before stereopsis is impaired. Measured by first measuring baseline stereopsis and here after adding aniseikonic (size glass) from 1-9% in front of the right and left eye to measure if stereopsis is impaired. If stereopsis is impaired at 4% sizeglas then aniseikonia tolerance is 4%.
baseline
Change of Aniseikonia tolerance after surgery
Measurement of aniseikonia tolerance before and after surgery. Measurement: before and after surgery stereopsis is measured, hereafter aniseikonic glasses (size glass) from 1-9% is added in front of the right and left eye to see if stereopsis is impaired. If stereopsis is impaired with 3% aniseikonic glass then the tolerance is 3%. After surgery the measurement is repeated to examine if the aniseikonia tolerance is the same.
six weeks after surgery
21 eyehealthy individuals examined for baseline stereopsis and impact of aniseikonia on stereopsis. An non-invasive measurement.
11 patients awaiting cataract surgery on both eyes. Measurement of baseline stereopsis and impact of artificial induced aniseikonia on stereopsis. A non invasive measurement that are repeated after dilatation of the eyes and again six weeks after surgery.
Adding sizeglasses of different percent before right and left eye and measure the impact on stereopsis
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
group 1: eyehealthy pahkic individuls group 2: eyehalthy phakic patients awainting cataratc surgery
Rigshospitalet-glostrup
Glostrup Municipality, Danmark, 2600, Denmark
First Submitted
January 31, 2019
First Posted
February 6, 2019
Study Start
July 2015
Actual (reported)Primary Completion
August 2, 2019
Estimated (date passed)Contact the study team to confirm eligibility.
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
December 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
February 6, 2019
Record last verified: 2019-02
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Source: ClinicalTrials.gov.
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