Correlation of Angle Kappa , Corneal High Order Aberrations and Total Eye Aberrations in Various Refractive Errors

• Sponsor: Sohag University (Other)
• Overall Status: Not yet recruiting
• CT.gov ID: NCT05741190
• Collaborator: (none)
• Enrollment: 100
• Anticipated Duration (Months): 7

Study Details

Study Description

Brief Summary

Identification of the correlation between angle kappa , corneal high order aberrations and total eye aberrations in myopic hyperopic and astigmatic patients

Condition or Disease	Intervention/Treatment	Phase
Aberration, Corneal Wavefront	Device: Pentacam Imaging

Detailed Description

The patient will be thoroughly examined clinically on slit lamp detailed history will be obtained visual acuity will be measured and patient refraction will be taken then imaging on Sirius topographer will be used to obtain angle Kappa and high order aberrations of the cornea and I-design pentacam imaging will be used to get the total aberrations of the eye

Study Design

• Study Type: Observational
• Anticipated Enrollment: 100 participants
• Observational Model: Case-Only
• Time Perspective: Cross-Sectional
• Official Title: Correlation of Angle Kappa , Corneal High Order Aberrations and Total Eye Aberrations in Various Refractive Errors
• Anticipated Study Start Date: Mar 1, 2023
• Anticipated Primary Completion Date: Sep 1, 2023
• Anticipated Study Completion Date: Oct 1, 2023

Arms and Interventions

Arm	Intervention/Treatment
myope Patients with myopia	Device: Pentacam Imaging; Imaging of the corneal surface
Hypermetrope Patients with hypermetropia	Device: Pentacam Imaging; Imaging of the corneal surface
Astigmatic Patients with Astigmatism	Device: Pentacam Imaging; Imaging of the corneal surface

Outcome Measures

Primary Outcome Measures

1. correlation between angle Kappa and high order aberrations of the cornea and total aberrations of the eye in various refractive errors [baseline]

   does the refraction affect the angle kappa or the corneal high order aberrations or the total aberrations of the eye

Eligibility Criteria

Criteria

• Ages Eligible for Study: 18 Years to 60 Years
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: Yes

Inclusion Criteria:

1. Patients with errors of refraction above the age of 18

2. No history of trauma.

3. No other ocular disease .

Exclusion Criteria:

1. patient under age of 18

2. patients with systemic disease.

3. patient with corneal diseases

4. Patient who did any sort of occular surgery

5. patient refusal

Contacts and Locations

Locations

No locations specified.

Sponsors and Collaborators

• Sohag University

Investigators

None specified.

Study Documents (Full-Text)

None provided.

More Information

Publications

• Gharieb Ibrahim HM, Gharieb HM, Othman IS. Angle kappa Measurement and Its Correlation with Other Ocular Parameters in Normal Population by a New Imaging Modality. Optom Vis Sci. 2022 Jul 1;99(7):580-588. doi: 10.1097/OPX.0000000000001910. Epub 2022 Jun 3.

• Responsible Party: Mario Magdy Ezzat, Resident Doctor, Sohag University
• ClinicalTrials.gov Identifier: NCT05741190
• Other Study ID Numbers: Angle Kappa and aberrations
• First Posted: Feb 23, 2023
• Last Update Posted: Feb 23, 2023
• Last Verified: Feb 1, 2023

• Studies a U.S. FDA-regulated Drug Product: No
• Studies a U.S. FDA-regulated Device Product: No
• Additional relevant MeSH terms: Refractive Errors; Corneal Wavefront Aberration

Study Results

No Results Posted as of Feb 23, 2023