Use a circular motion while applying the brush to the eye. This will prevent a central area of residual epithelial tissue and can be used to control or enlarge the zone of epithelial removal.

Always wet the Cornea and brush tip with B.S.S. prior to use. Invert the brush and place a few drops of B.S.S. on the concave tip.

Turn the brush on before placing it on the eye. It is often useful to tell the patient that this is the sound of the brush as it creates a smooth surface for the laser to work.

Turn the magnification in the microscope as low as possible while using this device.

Be sure to turn off the fixation occluder before proceeding with laser ablation.

Flood the Cornea with Chilled B.S.S. (5-7C) immediately after P.R.K. to equilibrate the corneal temperature (7 to 10 sec).