Why stop wearing contact lenses before laser myopia correction?

Abstract: to fully restore the original shape of the cornea, so as not to affect the preoperative diopter examination, so as to affect the accuracy of surgical correction; Different types of corneal contact lenses (different materials, different radians, matching degree with corneal shape) and corneal contact lenses have different effects on corneal tissue (thickness, elasticity, etc.). Why should

stop wearing contact lenses before operation? How long does it take to stop wearing?

stopping wearing contact lenses is one of the scientific procedures for laser myopia correction that must be observed. The influence of corneal contact lens (contact lens) on corneal morphology and diopter varies from person to person. The purpose of stopping wearing contact lenses before

and

examination

and

1. Make the cornea fully restore its original shape, so as not to affect the preoperative diopter examination, so as to affect the accuracy of surgical correction.

2. Different types of corneal contact lenses (different materials, different radians, matching degree with corneal shape) have different effects on corneal tissue (thickness, elasticity, etc.).

3. Generally, the cornea is easy to deform, and it is easy to restore the shape before wearing. But this kind of cornea should be paid attention to. Most of them are thin cornea or have the characteristics of keratoconus.

4. Stopping wearing contact lenses is to restore the corneal epithelial cells to normal, especially the damaged corneal epithelial cells.

5. If the contact lens causes “keratitis”, it needs systematic treatment. After the keratitis is completely controlled, it can be corrected after inspection and confirmation.