An earlier method of refractive surgery, known as photo-refractive keratectomy (PRK), was once the most commonly used technique. However, with advancements in laser technology, Advanced Surface Ablation (ASA) is now often the preferred option. ASA is especially suitable for patients whose corneas are too thin for LASIK surgery.
Advanced Surface Ablation is an advanced, flap-free laser vision correction procedure designed to reduce or eliminate dependence on glasses and contact lenses. Often considered an evolution of traditional PRK (Photorefractive Keratectomy), ASA reshapes the cornea using highly precise excimer laser technology to correct refractive errors such as:
- Nearsightedness (Myopia)
- Farsightedness (Hyperopia)
- Astigmatism
For patients who may not be ideal candidates for LASIK, ASA offers a safe and effective alternative with excellent long-term visual outcomes.
What Is Advanced Surface Ablation?
Unlike LASIK, Advanced Surface Ablation does not require the creation of a corneal flap. Instead, the thin outer layer of the cornea (epithelium) is gently removed to allow the laser to precisely reshape the underlying corneal tissue. Once the treatment is complete, a protective bandage contact lens is placed over the eye to support healing and comfort as the surface naturally regenerates.
This flap-free approach preserves more corneal tissue, making it a preferred option for certain patients. Also, complications from ASA are rare, though safety is improved and lower complication rates result; the procedure can produce more temporary discomfort for a longer time compared to LASIK. Also, recovery time and return to normal vision are usually longer.
Like all other vision correction procedures, your eye care needs and general health condition will be carefully evaluated before deciding which treatment options may be best for you.
