Refractive Surgery
Various scans will need to be performed in order to determine what technique of corrective surgery the patient will be suitable for. Refractive surgery techniques include: iLASIK, Photorefractive Keratectomy (PRK) and Implantable Collamer Lens (ICL).
Photorefractive Keratectomy (PRK)
PRK is suggested for patients who have thin corneas and are not suitable candidates for iLASIK. Patients requiring this technique will also need to be captured on the iTrace surgical design software suite.
When the cornea is thin a corneal flap cannot be created and thus in the case of PRK the corneal epithelium is removed with a special brush. Patients who undergo PRK have a slower healing time.
![](https://www.sandhursteyecentre.co.za/wp-content/uploads/2016/07/prk-pic.jpg)