2. A vacuum ring is placed around the cornea, which serves to stabilize the eyeball and in addition functions as being a platform for your microkeratome. When vacuum is activated, the vision will become hazy and tension on the attention is felt. LASIK is not recommended for patients with keratoconus, https://techonpage.com/story6416837/the-fact-about-lasik-eye-surgery-that-no-one-is-suggesting