Laser Refractive surgery, such as Photorefractive keratectomy (PRK), Laser In Situ Keratomileusis (LASIK), and the most recent SMILE surgery are among most common ophthalmic procedures in the world. Reasons for their popularity lie in the safety, efficacy, quick visual recovery, and minimal patient discomfort..
Patient satisfaction is almost 99% with this type of surgery.
Read Other Surgery Details:
1. Photorefractive keratectomy (PRK)
PRK : is performing the refractive surgery without making the corneal flap. There are no flap complications with the PRK surgery, however visual rehabilitation takes longer and it is more painful comparing to LASIK. It is good for patients with a thin cornea.
The Treatment Steps
Step 1
Preparing the outer layer
An alcohol solution or special brush is used to dissolve the thin, outer layer of the eye (epithelium).
Step 2
Remove the outer layer
The epithelium is removed either manually or with an excimer laser. It can also be moved to the side with a manual instrument.
Step 3
Correcting the error
An excimer laser is used to sculpt the corneal, thereby correcting the refractive error.
Step 4
Protecting the eye
Finally, a bandage contact lens is placed over the eye for protection until the epithelium grows back.
Is the latest refractive improvement in correcting presbyopia (inability to see near object after the age of 40). In incorporate 2 techniques to extend the range of vision, by increasing the depth of focus in each eye and creating a slight difference between both eyes to gain distance and near vision. Though, there are almost 10% of patients that might still need reading glasses for small print.
IS PRESBYOND SURGERY SAFE?
PRSBYOND surgery is a laser refractive surgery, which means it is a surgery that is made on the surface of the cornea and not inside the eye, which makes it much safer than other procedures to correct Presbyopia like lens replacement surgery. Although it has the same risk associated with LASIK procedure with minority of patient 3/1000 losing 2 or more lines of vision due to flap complications.
