Types of Refractive Surgery
Laser Assisted Intrastromal Keratomileusis (lasik)
In this procedure a flap one tenth of a millimetre in thickness (approximately the thickness of two hairs) is created and the excimer laser is then used to remove tissue from the deeper corneal stroma. Following this, the flap is repositioned without any disturbance to the surface. The procedure is done with local anaesthetic (eye drops) and is painless.
Laser Epithelial Keratomileusis (Lasek)
This recently evolved procedure is a marriage between lasik and the older surface laser (PRK) whereby the surface epithelium is not removed but rolled into a scroll and then repositioned following excimer laser treatment.
Phakic Implants
In this procedure an artificial lens is placed in front of the pupil giving excellent distance vision. This procedure tends to be used in young peole not suitable for laser, and has the advantage of giving good reading as well as distance vision, without the need for spectacles.
Clear Lens Extraction
This procedure is done in older patients not suitable for lasik and involves removal of the crystalline lens and insertion of either:
- A monofocal artificial lens giving excellent distance vision (but patients continue to need reading glasses); or
- A multifocal implant which gives excellent distance, near and reading vision.
What We Treat
- Myopia (Shortsightendess)
- Hyperopia (Longsightedness)
- Astigmatism
To treat these conditions, our practice offers a comprehensive range of ophthalmic refractive procedures including: lasik, lasek, phakic implants and clear lens extraction.
Am I Eligible for lasik?
In general to be eligible you must:
- Be over 20 years of age
- Have a healthy cornea
- Have no significant change in their prescription for 12 months
- Have a prescription between +8 and -12DS and +1 and -1 DC
Treatment Options for those Ineligible for lasik
Phakic Implants
An artificial lens is clipped onto the pupil giving excellent distance vision. Advantages: good reading and distance vision without the need for glasses.
Clear Lens Extraction
The crystalline lens is removed from the eye and an artificial lens is inserted. Patients can choose between a monofocal lens, which gives excellent distance vision (but patients continue to need reading glasses) or a multifocal implant which gives excellent distance and reading vision.