Zero Compression
Zero Compression microkeratome does not compress the cut flap as the microkeratome advances across the cornea. This technology has shown to be the safest way to create a flap, as per FDA research. It saves corneal tissue by creating a thinner, smoother flap with less swelling. It is gentler on tissues and reduces chances of epithelial erosions (corneal abrasion) and therefore it allows for quicker visual rehabilitation. The thinner flap it creates is a benefit for those who have thin corneas, large pupils or high prescriptions.
ZERO COMPRESSION IS HIGHLY RECOMMENDED TO ALL PATIENTS AND MANDATORY FOR SOME.
Why should I use it?
- I want a safe way of cutting my flap
- I want the latest keratome technology
- I want tissue saving because my prescription is high, or my corneas are thin or I have large pupils
- I have a delicate corneal epithelium and am prone to abrasions from:
- Map Dot Fingerprint corneal dystrophy
- Diabetes
- Dry eyes
- Being aged above 30 years old
The Zero Compression Keratome reduces significantly the incidence of abrasion, in comparison to the original Bausch & Lomb Hansatome. The following table demonstrates this fact.
| Age Category | B&L Hansatome | B&L Zero Compression |
| 18-25 | 2% | 0% |
| 25-30 | 4% | 0% |
| 30-40 | 8% | << 1% |
| 40-50 | 13% | << 1% |
| 50-60 | 17% | < 1% |
| 60+ | 23% | 1% |
There is an increased incidence of other complications when a patient has a corneal abrasion following Lasik. Inflammation chances increase to 50%, flap swelling to 50%, epithelial ingrowth to 40%, flap wrinkles to 10%. Comparatively, the chances of the latter complications drop to less than 1% when there is no corneal abrasion. Inflammation is the exception and its incidence is between 1% and 2% without corneal abrasion.
Although the use of the Zero Compression Microkeratome is a surgical option, it has a much higher safety profile. It is strongly recommend that all Lasik patients give serious consideration to utilizing the advanced technology of The Zero Compression Microkeratome when undergoing Lasik surgery.