We retrospectively examined 34 eyes treated with SCC. The mean age of the patients was 31 years (range 19–75 years). Our regular
follow up was 1 day, 1 week and 3 months following treatment. The preoperative astigmatism was -1.87dpt ±0.94dpt and the spherical
equivalent was -3,04 ± 3,04 dpt.
Figure 2: The eyetracking system of the Schwind AMARIS Laser compensates six movements of the eye for exact ablation control.
Postoperative the astigmatism was -0,33 ± 0,35 dpt and the spherical equivalent 0,03 ± 0,53 dpt. 85% of the patients showed
an astigmatism in a range of ±0.5dpt and 97% within ±1,0dpt.
The cyclotorision angle measured within a much higher range than we expected before we started working with the system. 55%
of the patients had an angle of ±2 degrees, 37% within 2 and ±5 degrees. 15% were between 5 and ±10 degrees and the remaining
5% were within 10 to ±15 degrees of cyclotorsion. The dynamic cyclotorsion measured was within ±1 degree in 67% of patients
and within ±2 in 94% and within ±3 in 100%.
This data shows that the cyclotorsion of the patient's eye is a significant factor influencing the corneal ablation. In our
group uncorrected VA increased from 0.2 to 1.0. The results were stable after 1 week and after 3 months. No retreatment was
performed within this group.
As a consequence of these results we now perform treatments with SCC in all patients with an astigmatism higher than 0.75
dpt. The refractive and functional results are very good. SCC is a very safe and predictable option, which we will investigate
further. We think that SCC will be a reliable instrument of laser surgery especially when going to the limits of astigmatism