Anmeldung zur Tagung
Registration
Grußwort
Invitation
Themen
Topics
Allgemeiner Ablauf
General overview
Wissenschaftliches Programm
Scientific program
Kurse
Courses
Symposien
Symposiums
Frühstück mit Spezialisten
Breakfast with specialists
Arzthelferinnen-Fortbildung
Rahmenprogramm
Social program
DOG Information
DOG Information
Allgemeine Informationen
General Information
Autorenindex
Index of Authors
Ausstellerliste
Exhibitors
Sponsoren
Sponsors
Teilnahmegebühren
Registration fees
Impressum
Laser epithelial Keratomileusis (LASEK) - Experiences with a new technique in refractive surgery for correction of myopia
Lohmann C. P., Winkler v. Mohrenfels C., Gabler B., Müller M., Herrmann W.
University Eye Clinic Regensburg
Background: There is constant innovation in refractive corneal
surgery. Myopia of moderate degree is currently corrected mainly with
the excimer laser as Photorefractive Keratectomie (PRK) and Laser in situ
Keratomileusis (LASIK). A new laser refractive technique is LASEK, where
an epithelial flap is created. This method could eliminate the disadvantages
of PRK (pain, corneal haze, slow recovery of vision) and LASIK (flap-
and interface-problems, keratectasie) and combine their advantages.
Patients and Methods: We performed LASEK in 45 patients (65 eyes)
so far. Spherical refraction of treated eyes ranged from -1,5 D to -12,0
D, astigmatism from 0 to 2,0 D. Maximum follow-up is 12 months. During
LASEK an epithelial flap is created after microtrepanation (70 µm)
and application of 20% alcohol (20 sec), which is repositioned after laser
ablation. A soft bandage contact lens is applied for the first 2 postoperative
days to protect the flap.
Results: Preparation of the flap succeeded without complications
in all but one eye. In most cases there was only little postoperative
pain. At 12 months the resulting spherical refraction differed on average
0,25 D from the aimed correction; all eyes were within ±1D, 75%
within ±0,5D. One eye suffered a flap loss at the first postoperative
day. Corneal haze was not observed except for the one eye with flap loss.
One eye lost 1 line of best corrected visual acuity (BCVA), all other
eyes kept their BCVA or gained 1 line.
Conclusion: LASEK is a safe and precise method for correction of
myopia with only little pain and normally without corneal haze. A stromal
cut with permanently weakened corneal stability is not required. Because
of the superficial laser ablation and the suppression of the stromal/epithelial
wound reaction by the epithelial flap, LASEK seems to be suitable for
higher myopia.