PRK (Photorefractive Keratectomy) is an older but still highly relevant refractive surgery option, particularly for patients who aren't ideal LASIK or SMILE candidates. Here's how to think about the choice.
| Factor | LASIK / SMILE | PRK |
|---|---|---|
| Corneal tissue removal approach | Beneath the corneal surface (flap or lenticule) | Surface layer removed directly, no flap or lenticule |
| Initial recovery | Fast — clear vision often within a day or two | Slower — several days of blurrier vision and more discomfort while the surface heals |
| Long-term results | Excellent | Equally excellent once fully healed |
| Best suited for | Most candidates meeting standard criteria | Thinner corneas, certain occupations, or patients not candidates for flap/lenticule approaches |
PRK's slower initial recovery is its main practical trade-off — final visual outcomes are comparably excellent to LASIK once healing is complete. It's often specifically recommended, not just a fallback, for certain corneal profiles or occupational needs.
Who's typically steered toward PRK
- Patients with corneas too thin for LASIK or SMILE
- Patients in occupations or activities with meaningfully elevated risk of eye trauma, where avoiding any corneal flap or incision is preferred
- Patients with certain corneal surface irregularities better addressed by PRK's approach
What the longer recovery actually involves
Expect several days of blurrier vision, light sensitivity, and some discomfort while the corneal surface heals — meaningfully different from LASIK's faster initial recovery, worth planning trip length around if PRK is recommended for your case.
Trip planning implications
PRK generally requires a longer trip than LASIK given the slower initial recovery — discuss this specifically with your surgeon if PRK is recommended, since it changes your travel timeline meaningfully compared to standard LASIK planning.
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