Intrastromal Corneal Ring Segment Implantation in 219 Keratoconic Eyes at Different Stages
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Ages Eligible for Study:
20 Years to 60 Years (Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Patients with keratoconus (stage I; stage II and stage III,according to the Amsler-Krumeich keratoconus classification) in whom KeraRing ICRS were implanted at the Fernández-Vega Ophthalmological Institute, Oviedo, Spain.
Patients who had keratoconus
Contact lens intolerance and clear cornea.
The maximum keratometric reading was less than 60.00 diopters (D)
The minimum corneal thickness more than 300 μm.
Acute or grade IV keratoconus.
Previous corneal or intraocular surgery.
Cataract, history of glaucoma or retinal detachment, macular degeneration or retinopathy, neuro-ophthalmic diseases, and history of ocular inflammation