Page 50 - The UK Guide to Laser Eye Surgery
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50 Questions about technology
 Ocular dominance and loose lens testing
What is it for?
Assessing your tolerance for Laser Blended Vision and enabling your surgeon to design a customised treatment plan that will correct both your distance and near vision at the same time.
What actually happens?
Your optometrist focuses your non- dominant eye for near vision while leaving your dominant eye focused for distance. They will then measure your binocular vision at distance and close up to determine whether you are likely to be suitable for a Blended Vision correction.
How does it feel?
You feel nothing.
How does it benefit you?
If you are over 40 years old, Laser Blended Vision can significantly reduce or even eliminate your dependency on reading glasses, bifocals or varifocals.
What is it for?
The microkeratome is a high-precision, computer-controlled instrument that the surgeon uses to help create the corneal flap in LASIK.
What actually happens?
You lie down on the laser bed facing up. After anaesthetising your eyes with eye drops, the surgeon holds your eye open using a lid holder. The microkeratome holds your eye steady by creating suction between it and your cornea and is then used to make a circular corneal flap with
a hinge. The surgeon folds the flap back
to expose the inner surface of the cornea, which is then ready for reshaping. In many clinics, the flap creation is done using a femtosecond laser. See next page.

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