Microkeratome: Difference between revisions

The microkeratome cutting head consists of a non-vibrating block and an oscillating blade unit. The non-vibrating block is composed of a tracking system, applanation plate, and cavities. The tracking system matches to the suction ring to connect the head to the ring using corresponding grooves. The applanation plate is the part of the block that precedes the oscillating blade and flattens the cornea, to create a constant angle for the blade for a constant flap thickness. The cavities of the block are used to hold the oscillating blade unit in place. The oscillating blade unit has a blade made of [[stainless steel]] or chrome-platinum. The standard oscillation speed of the blade is 15,000 [[Revolutions per minute|rpm]] with an engagement [[angle]] between 24° toand 30° depending on the required flap thickness. The direction of the cut determines the type of corneal flaps created on the cornea.