Aberration, Corneal Wavefront
Conditions
Brief summary
Identification of the correlation between angle kappa , corneal high order aberrations and total eye aberrations in myopic hyperopic and astigmatic patients
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
Interventions
Imaging of the corneal surface
Sponsors
Study design
Eligibility
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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 |