2. A vacuum ring is put throughout the cornea, which serves to stabilize the eyeball and in addition acts being a System to the microkeratome. When vacuum is activated, the eyesight will become hazy and tension on the attention is felt. LASIK will not be suggested for clients with keratoconus, https://simbadirectory.com/listings13465827/5-tips-about-lasik-treatment-you-can-use-today