The Innovation of CUTM-1 in Axis Measurement.

• Register: TCTR
• Last refreshed on: 29 April 2024
• Main ID: TCTR20141110002
• Date of registration: 10/11/2014
• Prospective Registration: No
• Primary sponsor: Ratchadaphiseksompot fund
• Public title: The Innovation of CUTM-1 in Axis Measurement.
• Scientific title: The Innovation of CUTM-1 in Axis Measurement.
• Date of first enrolment: 09/09/2014
• Recruitment status: Completed
• URL: https://www.thaiclinicaltrials.org/show/TCTR20141110002
• Study type: Observational
• Study design: N/A
• Phase: N/A

Contacts

• Name: Usanee - Reinprayoon
• Affiliation: Department of ophthalmology, Faculty of Medicine, Chulalongkorn university

• Name: Usanee - Reinprayoon
• Affiliation: Department of ophthalmology, Faculty of Medicine, Chulalongkorn university

Key inclusion & exclusion criteria

Inclusion criteria: Healthy adult, age more than 20 years old, without ocular disease
Exclusion criteria: pregnancy, breastfeeding, allergy to topical anesthetic drug or sterile ink, and any risks

of infection (e.g. immunocompromised host)

Age minimum: 20 Years
Age maximum: 120 Years
Gender: Both

Health Condition(s) or Problem(s) studied

corneal axis
axis marking method
astigmatic corneal marker
axis misalignment

Toric marker in cataract surgery for astigmatic correction
corneal axis
axis marking method
astigmatic corneal marker
axis misalignment

Intervention(s)

The CUTM-1 application,The slit lamp marking technique

Other,Other

The photograph was taken via the CUTM-1 application on mobile phone (iPhone5S, Apple, USA) which was attached on right slit-lamp eyepiece , volunteer was in upright position with the fellow eye fixed on distant target. The assigned axis was marked and saved on iPhone.,Slit-lamp photography (SL-D7 with DC-3 integrated digital camera, Topcon Corporation, Tokyo, Japan) was taken in upright position with the fellow eye fixed on distant target. All pictures were captured under same setting, which were diffuse illumination, 45 degree deviation of illuminating arm from the midline to temporal side and 16x optical magnification. A standard slit-lamp marking technique was performed using a sterile ink (Securline® Surgical Skin Marker, Aspen Medical Europe Ltd., Redditch, UK) to mark 0-180 degree reference point at the limbus in upright position and mark assigned axis using Mendez ring in supine position under surgical microscope. Then, the second photograph was taken.

Primary Outcome(s)

Horizontal deviation None Degree,Decentration None Millimeter,Axis deviation None Degree,Total axis deviation None Degree

Secondary Outcome(s)

None None None

Source(s) of Monetary Support

None

Ethics review

Status: Submitted, approved
Approval date:
Contact:

[e-mail]

Med Chula IRB

022564493 Ext. -

[e-mail]

Results

• Date Completed: 09/10/2014