Fulfill your dream of Glass – Free / Contact Lens – Free clear vision at MPEH’s world – class LASIK & Refractive Surgery center
- What is Refractive Error ?
Normally, the rays of light entering the eye are brought to a precise point focus on the retina (light – sensitive layer of eye), which results in clear vision. If the rays of light cannot be focused to the precise point on retina, image becomes blurred. These imperfections in the focusing capability of the eye are known as refractive errors.
- Common Refractive Errors
- Myopia (Near – Sightedness) : In myopia, the rays of light are focused at a point in front of the retina; either because the eyeball is longer than normal or the cornea is too steep. Near vision is clear but distant vision is blurred.
- Hyperopia (Far – Sightedness) : In hyperopia, the rays of light are focused at a point behind the retina; either because the eyeball is shorter than normal or the cornea is flat. Distant vision is clear but near vision is blurred.
- Astigmatism : In astigmatism, the rays of light are not focused to a point but form a line; resulting in distortion / blurring of vision for both distance & near. In astigmatism, the cornea is curved or more steep in one direction than in the other, like a rugby ball. It is possible to have astigmatism in combination with myopia or hyperopia.
- What is Refractive Surgery ?
- Refractive eye surgery is an outpatient procedure used to improve the refractive state of the eye & decrease or eliminate dependency on glasses or contact lens.
- This can include various methods such as surgical remodeling of the cornea (Keratomileusis), lens implantation (Implantable Collamer Lens) or lens replacement (Cataract Surgery).
- Successful refractive eye surgery can reduce or cure common vision disorders such as myopia, hyperopia, astigmatism or presbyopia, as well as degenerative disorders like keratoconus.
TYPES OF PROCEDURES
- LASIK (Laser – Assisted – In – Situ – Keratomileusis)
- In this procedure, a thin – hinged flap of cornea is created & lifted to one side to have access to the underlying corneal stromal tissue; & remove some corneal tissue using an excimer laser. The flap is then repositioned in the original position.
- There are two ways by which corneal flaps are created :
- With blade, using Microkeratome
- Without blade, using Femto – Laser System
- LASIK is the most commonly performed laser eye surgery to treat myopia, hyperopia and astigmatism.
- LASIK typically is pain-free and requires only about 15 minutes to treat both eyes. Vision improvement is immediate and often stabilizes in as little as 24 hours.
- Implantable Collamer Lens (ICL)
- ICL are designed for people with high degrees of refractive errors that cannot be safely corrected with corneal – based laser refractive surgery (LASIK).
- The ICL is surgically implanted inside the eye in front of the eye’s natural crystalline lens. The eye’s natural lens is not removed, so patients can retain their pre – existing ability to focus.
- Once the ICL is properly positioned inside the eye, it provides the necessary correction to redirect light rays precisely onto the retina.
- Refractive Lens Exchange / Clear Lens Extraction
- In this technique, an artificial lens is used to replace the eye’s natural crystalline lens in order to improve vision.
- The procedure is performed much like cataract surgery.