NCT04816266|Unknown
Comparative Study in Measuring Anterior Chamber Depth
Comparative Study Between Pentacam and IOL Master in Measuring Anterior Chamber Depth
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Comparative Study Between Pentacam and IOL Master in Measuring Anterior Chamber Depth
Sponsor study identifier
observational
50
0 countries
N/A
Study Start
April 1, 2021
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Primary Completion
April 1, 2022
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
April 1, 2023
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Measuring parameters of anterior segment of the eye accurately is important for diagnosing variety of diseases and for cataract surgeries, glaucoma, refractive surgeries and post-operative follow-up. One of the anterior segment parameters is the anterior chamber depth. The anterior chamber depth (ACD) measurement provides valuable information in different fields in ophthalmology. Firstly, it is important for the new theoretical biometric formulas used to calculate the power of intraocular lenses (IOLs) .Secondly, phakic IOL implantation requires precise ACD measurement for both surgical planning and IOL power calculation. Thirdly, the ACD is also implicated as a screening risk factor for glaucoma. Additionally, precise ACD measurement is thought to be important to the accurate determination of the optic zone ablation diameter for keratorefractive surgery, as well as for the analysis of postoperative ACD changes. Different technologies are used in measurement of the anterior chamber depth Such as pentacam and iol maste
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
April 1, 2023
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.
March 23, 2021
Actual (reported)March 25, 2021
Actual (reported)April 1, 2021
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
April 1, 2022
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
April 1, 2023
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Comparison between values of anterior chamber depth obtained by different devices
Measuring Anterior chamber depth by Pentacam and iol master in eyes with different refractive errors
One year
Iol master measures the distance between anterior pole of the cornea and the anterior surface of the lens to calculate the anterior chamber depth
The Pentacam HR calculates Anterior chamber depth from the corneal endothelial layer along a line from the apex of the cornea to the anterior surface of the lens
People between eighteen and forty years seeking for refractive surgery
First Submitted
March 23, 2021
First Posted
March 25, 2021
Study Start
April 1, 2021
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Primary Completion
April 1, 2022
Efficacy and Safety of Astaxanthin in Volunteer With Refraction Errors
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This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
April 1, 2023
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
March 25, 2021
Record last verified: 2021-03
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Source: ClinicalTrials.gov.
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