Correlation Between Corneal Topographic Patterns and Refractive Status Of The Eye in Sohag City,Egypt

NCT05626075 | Unknown

• 1 other identifier: Soh-Med-22-07-2014
• Study Type: interventional
• Target: 100
• Locations: 1 country
• Sites: 1

Brief Summary

To evaluate corneal topographic pattern \& its correlation with refractive status of the eye .

Conditions

Eye Change

Keywords

Topographic; visual acuity

Outcome Measures

Primary Outcomes (4)

• Thickness

  Topographic values using Oculus Pentacam®

  3 months after begin of study

• degree of astigmatism in D

  Topographic values using Oculus Pentacam®

  3 months after begin of study

• maximum keratometry

  Topographic values using Oculus Pentacam®

  3 months after begin of study

• front and back elevation of the apex (um).

  Topographic values using Oculus Pentacam®

  3 months after begin of study

Study Arms (4)

group Low Myopia

EXPERIMENTAL

1. Patients with low myopia aging more than 15 years old 2. All patients are with visual acuity (uncorrected, with habitual correction, and best spectacle correction). 3. There is no restrictions on the range and regularity of keratometry

Diagnostic Test: Using Oculus Pentacam® which is s a rotating Scheimpflug camera. The rotational measuring procedure generates Scheimpflug images in three dimensions.

group high myopia

EXPERIMENTAL

1. Patients with high myopia aging more than 15 years old 2. All patients are with visual acuity (uncorrected, with habitual correction, and best spectacle correction). 3. There is no restrictions on the range and regularity of keratometry

Diagnostic Test: Using Oculus Pentacam® which is s a rotating Scheimpflug camera. The rotational measuring procedure generates Scheimpflug images in three dimensions.

group Hypermetropia

EXPERIMENTAL

1. Patients with hypermetropia aging more than 15 years old 2. All patients are with visual acuity (uncorrected, with habitual correction, and best spectacle correction). 3. There is no restrictions on the range and regularity of keratometry

Diagnostic Test: Using Oculus Pentacam® which is s a rotating Scheimpflug camera. The rotational measuring procedure generates Scheimpflug images in three dimensions.

group mixed astigmatism

EXPERIMENTAL

1. Patients with mixed astigmatism aging more than 15 years old 2. All patients are with visual acuity (uncorrected, with habitual correction, and best spectacle correction). 3. There is no restrictions on the range and regularity of keratometry

Diagnostic Test: Using Oculus Pentacam® which is s a rotating Scheimpflug camera. The rotational measuring procedure generates Scheimpflug images in three dimensions.

Interventions

Using Oculus Pentacam® which is s a rotating Scheimpflug camera. The rotational measuring procedure generates Scheimpflug images in three dimensions. DIAGNOSTIC_TEST

Scheimpflug imaging attains a wide and high depth-of-focus , providing sharp images that include information from an anterior corneal surface through to the posterior crystalline capsule

Also known as: The scheimpflug principle describes the optical imaging condition

group Hypermetropia; group Low Myopia; group high myopia; group mixed astigmatism

Eligibility Criteria

• Age: 15 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• Patients aging more than 15 years old
• All patients are with visual acuity (uncorrected, with habitual correction, and best spectacle correction).
• There is no restrictions on the range and regularity of keratometry.

You may not qualify if:

• Patients with a history of any trauma to the eye.
• Patients with recent contact lens wear.
• history of ocular surgery .
• Patients with distance corrected visual acuity or abnormal retinoscopy examination (e.g., scissoring reflex).
• \. If there was any error in reading the topographic map. 6. Patients with anemotropic refraction.

Sponsors & Collaborators

• Sohag University: lead

Study Sites (1)

Facultyof medicine

Sohag, 82425, Egypt

RECRUITING

Study Officials

• Mohamed Iqbal, MD.PhD

  Sohag Faculty of medicine

  STUDY CHAIR

Central Study Contacts

Mohamed Iqbal, MD.PhD

CONTACT

00201068559840; dr_m_iqbal@yahoo.com

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Purpose: DIAGNOSTIC
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Ophthalmology Resident at Akhemim Central hospital

Study Record Dates

• First Submitted: October 12, 2022
• First Posted: November 23, 2022
• Study Start: September 22, 2022
• Primary Completion: December 1, 2022
• Study Completion: March 1, 2023
• Last Updated: November 23, 2022

Record last verified: 2022-11

Data Sharing

• IPD Sharing: Will not share

Locations

EG (1)