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A new surgical technique to perform a deep lamellar keratoplasty in patient with keratoconus: intrastromal keratoplasty (ISK)

Poster Details

First Author: G.Vizzari ITALY

Co Author(s):    P. Bordin                    

Abstract Details


The aim of this study is to describe a technique for performing deep lamellar keratoplasty using femtosecond laser in the surgery of keratoconus: Intra Stromal Keratoplasty (ISK).


Department of Ophthalmology, Hospital of Legnago, Verona


A 31-year-old-male presented with keratoconus was referred for progressive corneal ectasia and worsening visual-acuity.His best-corrected-visual-acuity(BCVA) was20/100with corneal central thickness of390�Â�µm.He underwent femtolaser-assisted(Victus,B&L)DALK.The femtolaser with-real-time-OCT was used to create a vertical side cut on donor-cornea of310�Â�µm with anterior diameter of8mm and a posterior of8.1mm in order to generate a small step in the-external-profile.In the recipient-cornea was created a femtolaser-corneal-pocket of9.3mm of diameter and210�Â�µm of thickness.Two corneal-incisions of3mm at40�Â�°and220�Â�°were created in the recipient cornea,followed by manual dissection of the stromal pocket to allow the insertion of the donor stromal strip.Two stitches were positioned on the corneal-incisions.


The patient was followed up on day 1, day 5, at 2 weeks, 4 weeks. At each follow-up visit, complete ocular examination were performed. The cornea was clear and the stromal strip in the right position. At 4 weeks the BCVA was 20/40. No complications were encountered.


ISK allows to perform a more safety surgical technique in keratoconus. It allow a fast recovery of the visual acuity without corneal suturing complications.

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