Camellin Style

The Camellin Style LASEK Trephine & Alcohol Well: Precision for Surface Ablation

In the area of refractive surgery, it is the Camellin Style LASEK Trephine and Alcohol Retaining Well is an essential tool for Laser Epithelial Keratomileusis (LASEK). The tool was created through the work of Dr. Massimo Camellin, the pioneer of the LASEK technique. The double-ended device is designed to create an ideal epithelial flap and protect the corneal stroma, which is delicate. This 8mm trephine, as well as the 8.5mm well configuration, is among the most commonly utilized sizes, specifically designed for conventional treatment zones.

Dual-Ended Design: Two Steps, One Instrument

It is the Camellin Style instrument that combines two essential surgical steps into one single, ergonomic instrument. The double-ended design allows surgeons to turn the instrument in mid-procedure to ensure that the flow of surgery is maintained and to cut down the number of tools in the tray.

1. 8.3mm Trephine (Epitheliotomy) The trephine’s edge has an edge of 270 ° that is semi-sharp with a 90 ° cutout. This particular shape is specifically designed to allow a partial thickness cut through the epithelium. The 90 ° cutout will ensure that the “hinge” of tissue remains intact, thus preventing the free-floating epithelial cap, and allows for an easy repositioning following laser ablation.
2. The 8.5mm Alcohol Retaining Well: On the other side of the 8.5mm hole is set on top of the trephinated portion. It’s used to secure an alcohol solution that is dilute (typically 18 to 20 percent) in the cornea between 20 and 30 minutes. The alcohol reduces the hemidesmosomal attachments and allows the epithelial layer to be peeled back into an entire, functional layer.

Why the 8.5mm Well for an 8mm Trephine?

The size that this device uses is deliberate and clinically important. With an instrument that’s 0.5mm greater than the size of the trephine, the surgeon can ensure:

• Total Coverage Alcohol solution extends to the border of the trephination line, creating a more clean “peel” at the margin.
• Leak Prevention . Its slightly greater diameter of the well to be positioned well around the cut, which creates a more secure seal with the corneal surface, preventing alcohol from spilling onto the delicate conjunctiva.