Central Corneal Thickness
Conditions
Brief summary
To evaluate the impact of refractive errors on the central corneal thickness obtained by Pentacam and intraocular lenses (IOL) master in eyes with different refractive errors.
Detailed description
Central corneal thickness (CCT) is a key indicator of corneal health status and helps to assess corneal diseases. The normal corneal thickness is about 540 μm and mainly consists of the stroma, which is estimated at 450 μm in the center. The stroma provides vital structural integrity and plays a key role in helping maintain transparency. It has been reported, however, that CCT follows a diurnal pattern being 10 μm thicker in the morning due to reduced evaporation of water from underneath the closed eyelids
Interventions
DEVICEPentacam and IOL master
Device used for measurement of central corneal thickness
Sponsors
Assiut University
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
20 Years to 41 Years
Inclusion criteria
* Subjects included in this study aged between20 and 41 years, asked for refractive surgery
Exclusion criteria
* patients with corneal scarrig or opacification. * Patients with corneal dystrophies. * Patients with keratoconus. * Previous ocular or refractive surgery. * Ocular trauma. * Uveitis patients. * Patients with history of recent contact lens wear.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| To find if there a correlation between refractive errors and the central corneal thickness | Baseline | Study the effect of refractive errors on central corneal thickness |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| To study if there a difference between measurement by pentacam and measurement of IOL master | Baseline | Study which device is more accurate in measuring the central corneal thickness and if there is any difference between the two devices |
Contacts
Primary ContactHaidy Nayer Adly, Master
Outcome results
None listed