Intrastromal Lenticule Rotation To Correct High Hyperopic-Astigmatism In Young Patients
Published 2023 - 41st Congress of the ESCRS
Reference: CC01.09 | Type: Case report | DOI: 10.82333/8kpq-9x98
Authors: Suphi Taneri* 1 , Anika Förster 2 , H. Burkhard Dick 3
1Eye Department at St. Franzis Hospital,Center for Refractive Surgery,Münster,Germany;Ruhr-University Bochum,Bochum,Germany, 2Eye Department at St. Franzis Hospital,Center for Refractive Surgery,Münster,Germany, 3Ruhr-University Bochum,Bochum,Germany
To report clinical outcomes of this new modality in young patients
Eye Center at St. Francis Hospital, Münster, Germany
Case 1: A 23-year-old male presented with a manifest refraction of OD +6.75 -6.0 X 19° =1.25 and OS +6.5 - 6.5 X 157° = 1.0. Corneal astigmatism was regular (OD 5.1 D, OS 5.4 D).
Case 2: A 19-year-old female presented with a manifest refraction of OD +6.25 -3.75 X11° = 1.25 and OS +7.5 -5.25 X 173° =1.25. Corneal astigmatism was OD 4.7 D and OS 5.7 D.
Both patients were treated with intrastromal lenticule rotation. A flap and a toric lenticule with half of the refractive cylinder was created inside the corneal stroma. After flap lifting, the lenticule was rotated by 90° and the flap repositioned.
Thus, a spherical refraction was targeted. Case 1 presented 8 months after surgery with a manifest refraction of OD +3.75 -2.0 X33° and OS +2.75 -1.0 X8°. The second case had a manifest refraction of OD +4.25 -0.5 X125° and OS +5.25 -2.5 X114° one week after surgery. Uncorrected visual acuity improved in all 4 eyes and no eye lost any line of corrected visual acuity
Lenticule rotation is a promising new modality to correct high hyperopic-astigmatism outside the Femto-LASIK range in young patients. Additional excimer-laser ablation, either on the stromal surface or on the lenticule after flap-lifting, to correct the rest of manifest ametropia seems feasible.