1. versus 2.75mm Incision Phacoemulsification
Björn Johansson, MD PhD Dept of Ophthalmology, Linköping University Hospital, Sweden
Clinical Outcomes
after 1.8mm C-MICS
versus 2.75mm Incision Phacoemulsification -
Refractive Stability
Financial interest disclosure:
There is no financial interest in the subject matter of this poster.
The author has received financial and/or administrative support for research
from Bausch&Lomb, AMO and Pfizer,
and travel expense reimbursement at meetings from Bausch & Lomb & Zeiss.

2. Much seems better with C-MICS...
Surgically induced astigmatismus lowered
Hayashi, Yoshida & Hayashi. J Cataract Refract Surg Feb;35(2):233-9
Higher order aberrations decreased
Tong et al. J Cataract Refract Surg Dec;34(12):
Corneal structure and profile improved
Elkady, Piñero, Alió. J Cataract Refract Surg Mar;35(3):466-74
But: does the patient notice?
- How long must I wait after my operation till I can get my glasses adjusted?

3. Purpose of this study
To examine if, in a clinical setting, refraction stability is significantly better after 1.8 mm Coaxial Micro Incision Cataract Surgery (C-MICS) compared with 2.75 mm standard phacoemulsification surgery (STDPS)

4. C-MICS 1.8mm (Stellaris®, Bausch&Lomb), n=46
Methods and Material
C-MICS 1.8mm (Stellaris®, Bausch&Lomb), n=46
STDPS 2.75mm (Legacy®, Alcon), n=59
SRK-T (IOLmaster, AXIS-II immersion)
Follow-up data after operations during March 2009, as reported to Swedish National Cataract Register:
planned and resulting refraction, K-readings.
1week and 7weeks after surgery

5. N.S. No significant difference MICS – STDPS
At 7 weeks after cataract operation: How many eyes remain within +/-0.5 D sph&cyl of the refraction at 1 week?
N.S.
P = 0,26,
chi²-test
No significant
difference
MICS – STDPS

6. Refraction target accuracy
N.S. chi²-test
N.S. chi²-test
N.S. chi²-test
No significant
difference
MICS - STDPS

7. Conclusions:
In a clinical setting, 1.8mm Coaxial Micro Incision Cataract Surgery (C-MICS) and 2.75mm standard phacoemulsification surgery (STDPS) did not differ with statistical significance, regarding
Refraction stability
Refraction target accuracy
More detailed investigations regarding the refractive recovery after phacoemulsification surgery are necessary