Femtosecond Laser in Comparison to Moria Microkeratome in Creating Corneal Flaps Clinical Trial
Official title:
Predictability of Corneal Flap Thickness in Lasik Using Femtosecod Laser in Comparison to Moria Microkeratome
Since the cornea is the main responsible for the refraction of the eye, as its refractive power is greater than 70% of the total refraction of the eye, so modification of its refractive properties are used to change the optical system of the eye. Hence, laser-assisted in situ keratomileusis has become the most commonly procedure used to correct the refractive errors of the eye. The most important step in laser-assisted in situ keratomileusis is the creation of the corneal flap, which its thickness may judge the whole outcome of the surgery . So trying to minimize the variation in the thickness of the resultant flap in comparison to what planned flap thickness preoperatively become our target.
Status | Not yet recruiting |
Enrollment | 50 |
Est. completion date | April 2020 |
Est. primary completion date | August 2019 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years to 40 Years |
Eligibility |
Inclusion Criteria: - Age 18-40 year - Preoperative spherical refraction of -2.00 to -10.00D. - Refractive cylinder of less than -3.00D. - A stable refractive state for 2 years. - An intraocular pressure (IOP) of <22 mm Hg. Exclusion Criteria: - A history of any systemic autoimmune disease. - A history of diabetes. - Other ophthalmic disorders. - A history of ocular trauma and surgical history. |
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
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Assiut University |
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Type | Measure | Description | Time frame | Safety issue |
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Primary | corneal flap thickness | measuring the corneal flap thickness in nanometers postoperatively by anterior segment OCT | 7 days | |
Secondary | uncorrected visual acuity | identifying uncorrected visual acuity postoperatively | 7 days | |
Secondary | best corrected visual acuity | identifying best corrected visual acuity postoperatively | 7 days |