METHOD OF SURGICAL CORRECTION OF HIGH ASTIGMATISM FOLLOWING THROUGH KERATOPLASTY Russian patent published in 2011 - IPC A61F9/07 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to ophthalmology, and can be used for surgical correction of high astigmatism of eye following through keratoplasty. The astigmatism correction is two-staged: it starts with sub-flap keratotomy ensured by intraoperative pachymetry following formation of a surface flap, and determination of a residual thickness of a transplant within planned incisions; and two incisions are made with an edge of a cutting instrument projected by a size equal to 90 % of said thickness, on a corneal transplant perpendicularly to a strong astigmatism axis within the greatest refracting power, each spaced 0.5 mm from a transplant scar and concentrically thereto. The flap is arranged on its place and fixed with a soft contact lens. In 1 month after keratotomy, by optical coherent tomography, a thickness of underlying stroma is determined, and a stromal keratoablation algorithm is pre-calculated with observing an indication for the second stage of surgery. In 4 months after keratotomy, the flap is lifted, and laser keratoablation follows with considering recent refraction data.

EFFECT: method allows ensuring high functional results in a relatively short time.

2 cl, 2 ex