Status:
UNKNOWN
Contribution of Posterior Corneal Astigmatism to Total Corneal Astigmatism in a Sample of Egyptian Population
Lead Sponsor:
Cairo University
Conditions:
Corneal Astigmatism
Eligibility:
All Genders
18-45 years
Brief Summary
The magnitude of posterior corneal astigmatism was considered negligible due to the smaller difference in the refractive index between the cornea and the aqueous . though ,neglecting the posterior co...
Detailed Description
Astigmatism is a common vision condition that causes blurred vision. Astigmatism is an error of refraction in which incident parallel rays can't be focused to a single point .It could be corneal or le...
Eligibility Criteria
Inclusion
- Patients with corneal astigmatism(±0.5D up tp ±4 D )
- Age (18-45 years )
- Refractive error (myopia up to -8D)
- Hyperopia up to +4
- Patients who have clear cornea .
- Good quality Scheimpflug analyzer scans.
Exclusion
- Patients who have any corneal opacity .
- Patients who underwent any Previous corneal surgery .
- Patients who have Co existing corneal pathology.
- Glaucomatus patients.
- Patients with any Concomitant ocular disease .
- Patients with History of previous ocular trauma .
Key Trial Info
Start Date :
April 15 2020
Trial Type :
OBSERVATIONAL
Allocation :
ESTIMATED
End Date :
August 15 2020
Estimated Enrollment :
356 Patients enrolled
Trial Details
Trial ID
NCT04393740
Start Date
April 15 2020
End Date
August 15 2020
Last Update
May 19 2020
Active Locations (1)
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1
kasr El Aini medical school
Cairo, Egypt