Yu.Yu. KALINNIKOV, I.E. IOSHIN, A.R. GRIGORYAN, A.I. BEZZABOTNOV

Clinical Hospital of the Executive Office of the President of the Russian Federation, 45 Losinoostrovskaya Str., Moscow, Russian Federation, 107150

Kalinnikov Yu.Yu. ― D. Med. Sc., ophthalmologist of the Ophthalmology Department, e-mail: [email protected]

Ioshin I.E. ― D. Med. Sc., Professor, Head of the Ophthalmology Department, e-mail: [email protected]

Grigoryan A.R. ― ophthalmologist of the Ophthalmology Department, e-mail: [email protected]

Bezzabotnov A.I. ― ophthalmologist of the Ophthalmology Department, e-mail: [email protected]

The study evaluated the clinical and functional results of the use of open corneal ring 359° in the treatment of keratoconus using a femtosecond laser for the formation of an intrastromal tunnel. 57 eyes of 51 patients were operated with keratoconus of 2-3 stage. Follow-up comprised 24 months. After the open corneal ring implantation, the cylindrical component of refraction decreased by 70.5%, the spherical component ― by 83%. The functional results showed significant improvement of visual acuity without correction by 33% and with correction ― by 40%.

Key words: keratoconus, intralamellar keratoplasty, implantation of 359° open corneal ring.

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