Authors
Suchkova V.A., Arutyunyan L.L., Izmailova S.B., Shatskikh A.V., Taevere M.R.
The S. Fyodorov Eye Microsurgery Federal State Institution, Moscow
Abstract
Rationale: Penetrating keratoplasty (PKP) often remains the only possible radical treatment for patients with corneal pathologies, one of which is keratoconus in the late stages [1]. The main criterion for the success of keratoplasty today remains transparent engraftment of the graft, but nowadays it is becoming increasingly important to achieve high clinical and functional results after surgery, which directly depends on the degree of ametropia of the operated eye [2]. Today, a fairly large number of methods for preventing postkeratoplastic ametropia are known, but as studies have shown, each method has a number of disadvantages. Therefore, at present, the search for an optimal method for intraoperative correction of ametropia in patients with keratoconus, allowing to obtain a stable result, is still relevant.
Objective: Development of a new modified method for performing penetrating femto-assisted keratoplasty.
Methods: The objects of the experimental study were 6 isolated donor (cadaver) eyes that did not undergo high-quality selection of material for keratoplasty. All donor eyes underwent femto-assisted penetrating keratoplasty with implantation of an intrastromal ring according to the proposed method.
Results: When modeling the technology we proposed, we obtained a complete cut of the cornea without the formation of tissue bridges and adhesions.
Conclusion: With the help of femtosecond technologies, the intrastromal ring places the correct position around the entire circumference and remains fixed by the surrounding tissues in its lamellar pocket, which eliminates the need for suturing.
Keywords: intrastromal ring, keratoplasty, femtosecond laser, keratokonus.
References
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