Ignite Creation Date:
2025-12-24 @ 10:31 PM
Ignite Modification Date:
2026-03-13 @ 11:52 AM
Study NCT ID:
NCT02999035
Status:
COMPLETED
Last Update Posted:
2017-08-24
First Post:
2016-12-14
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Validation of a Newly Developed Liquid Jet Aesthesiometer
Sponsor:
University of Applied Sciences and Arts Northwestern Switzerland
Organization:
Study Overview
Official Title:
Validation of a Newly Developed Liquid Jet Aesthesiometer
Status:
COMPLETED
Status Verified Date:
2017-08
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
A new liquid jet aesthesiometer prototype was developed with the aim to measure ocular surface sensitivity by employing a liquid jet.
This study aims to validate this new prototype by means of correlating its measurement with a previously validated air jet aesthesiometer, the non-contact aesthesiometer (NCCA; by Murphy et al. 1996) and by exploring the repeatability of ocular surface sensitivity measurement.
This study aims to validate this new prototype by means of correlating its measurement with a previously validated air jet aesthesiometer, the non-contact aesthesiometer (NCCA; by Murphy et al. 1996) and by exploring the repeatability of ocular surface sensitivity measurement.
Detailed Description:
Currently, no aesthesiometer is available that delivers reliable and repeatable measurement of ocular surface sensitivity in a routine clinical setup. The only commercially available Cochet- Bonnet aesthesiometer uses a tactile-mechanical stimulus (the tip of a nylon thread), which can cause a microerosion when applied to the corneal surface. Additional disadvantages represent poor stimulus reproducibility, a limited stimulus bandwidth and the influence of humidity and age on the bending capibility of the nylon thread. For research purposes prototypes of non-contact air aesthesiometers (eg by Murphy et al. and Belmonte et al) are being used.
This study aims to correlate ocular surface sensitivity measurements of a newly developed prototype, the liquid jet aesthesiometer, with the non-contact air jet aesthesiometer by Murphy et al. 1996 and to explore its repeatability of measurement.
In this repeated measures design 60 subjects participate in corneal sensitivity measurements during two appointments with each described aesthesiometer.
This study aims to correlate ocular surface sensitivity measurements of a newly developed prototype, the liquid jet aesthesiometer, with the non-contact air jet aesthesiometer by Murphy et al. 1996 and to explore its repeatability of measurement.
In this repeated measures design 60 subjects participate in corneal sensitivity measurements during two appointments with each described aesthesiometer.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: