T.K. CHURAKOV¹, A.V. TITOV¹, L.I. BALASHEVICH¹_’², S.A. NIKULIN¹, A.B. KACHANOV¹_’², O.A. EFIMOV¹

¹St. Petersburg branch of the Interbranch scientific and technical complex «Eye Microsurgery» named after acad. S.N. Fedorov, 21 Ya. Gashek St., St. Petersburg, Russian Federation, 192283

²North-Western State Medical University named after I.I. Mechnikov, 41 Kirochnaya St., St. Petersburg, Russian Federation, 191015

Churakov T.K. ― Doctor, e-mail: [email protected]

Titov A.V. ― Doctor, tel. (812) 324-66-66, e-mail: [email protected]

Balashevich L.I. ― D. Med. Sc., Professor of the Ophthalmology Department, Chief Adviser, tel. (812) 324-66-66, e-mail: [email protected]

Nikulin S.A. ― Head of the Refractive Department, e-mail: e-mail: [email protected]

Kachanov A.B. ― Cand. Med. Sc., Associate Professor of the Ophthalmology Department, Doctor, tel. (812) 324-66-66, e-mail: [email protected]

Efimov O.A. ― Doctor, tel. (812) 324-66-66, e-mail: [email protected] 

The article presents the results of corneal collagen crosslinking, performed with relation to progressive keratoconus in 32 patients (61 eyes) with different stages of disease. Diagnostic value of projection Scheimpflug corneal topography «Pentacam» in the evaluation of the operation results was studied. It was determined that after CXL are fairly reduced five of seven «Pentacam» corneal topography indices, that leads to improvement of functional and refractive parameters. It has been found that the most informative for evaluation of the operation result was the index of surface variance (ISV).

Key words: keratoconus, corneal collagen crosslinking (CXL), Pentacam, keratoconus indices, Scheimpflug topography.