ASLA/PRK laser eye surgery

During an ASLA procedure the outer layer of the cornea is removed with a solution. The corneal tissue is then reshaped with an excimer laser.

Advanced Surface Laser Ablation (ASLA) is the updated term for a procedure also known as PRK (Photorefractive Keratectomy). PRK was the first laser eye surgery technique available, and it is still used in specific circumstances, such as when a patient has a thin or irregular shaped cornea.

Rather than using a laser to create an outer flap of corneal tissue, this procedure uses a diluted alcohol solution to dissolve the miniscule epithelial layer from the surface of the cornea, which is then scraped or pushed aside using a manual tool.

An excimer laser is then used to sculpt the cornea, correcting the refractive issue for the patient before a bandage lens is placed over top to protect the cornea. The bandage can be removed once the epithelial layer grows back, a process that takes just a few days.

How long does ASLA take?

The procedure itself is quick however recovery from PRK can take a little longer than other procedures. A return to work and usual activities is likely within a few days but it may take longer to notice your vision sharpening.

Who can have ASLA/PRK surgery?

Your specialist will confirm the most suitable laser correction procedure after your free laser eye assessment. In general, ASLA/PRK is used for people with thin corneas or those who have had a laser procedure in the past.

More laser vision correction procedures

LASIK

LASIK creates a thin corneal flap, allowing precise laser correction within seconds and quick visual results.

SMILE Pro

SMILE pro uses the latest ZEISS laser technology to gently remove a tiny lenticule through a keyhole incision, offering fast recovery and excellent comfort.

Meet our surgeons

Dr John Rawstron
MB ChB, MPH, GDipM (Refract Surg), FRANZCO

Dr Rawstron brings international surgery qualifications and experience to the refractive team. In addition to LASIK, SMILE pro, PRK and lens surgery procedures, he specialises in corneal transplants and cataract surgery as part of Southern Eye Specialist’s broader ophthalmology services.

Dr Elizabeth Conner
MBChB, BMedSci, FRANZCO

Liz Conner is an experienced cornea, cataract and refractive surgeon who joined Southern Eye Specialists Laser in 2022 after completing a fellowship in Pittsburgh. She specialises in a comprehensive range of laser correction procedures, including LASIK, SMILE pro, and PRK. Liz also offers cataract surgery with premium refractive lens options, treatments for keratoconus, and is fellowship trained in paediatric eye problems.