Two. A vacuum ring is put across the cornea, which serves to stabilize the eyeball in addition to acts like a platform for the microkeratome. When vacuum is activated, the eyesight becomes hazy and strain on the eye is felt. Secure Eyesight: Candidates ought to have a stable eyeglass or https://wekurehealth.com/blog/cataracts-what-to-expect-and-how-to-prepare-wekure-health/