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After Lasik, Bladeless Lasik, PRK, LASEK, and Epi-Lasik.

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Regression may cause a loss of some of the effects of refractive surgery.  

Moderate regression may occur after excimer laser assisted conventional or custom wavefront Lasik, Bladeless Lasik, PRK, LASEK, and Epi-Lasik. This occurs mostly in myopic patients who have more than 6.0 diopters of refractive error and virtually all hyperopic patients.

After excimer laser assisted refractive surgery the cornea tends to regress back toward the original refractive error. The epithelium and the deeper stroma can reshape and reform at different rates and can cause regression.

Most Lasik and Bladeless Lasik patients experience regression within the first few weeks after surgery, while the surface ablation techniques of PRK, LASEK, and Epi-Lasik may require additional time until regression has settled down. For myopic patients, regression usually occurs within the first one to three months after surgery. Hyperopic patients may experience regression for a longer period of time. In all cases, it is reasonable to expect regression to stop within the normal six month healing period.

Regression that is severe or continues to progress may be a sign of ectasia.

Regression is a natural component of the healing process and is considered in the planned correction. A patient may be deliberately overcorrect to accommodate expected levels of regression. See Lasik Overcorrection.

Regression occurs more commonly with smaller ablation diameters and with abrupt transition zones at the edge of the treatment areas. Steroid medications can be used to regulate and control regression. Although regression seems to be more prevalent the higher the refractive error, regression can occur in anyone.

Looking For Best Lasik Surgeon?

If you are ready to choose a doctor to be evaluated for conventional or custom wavefront Lasik, Bladeless Lasik, PRK, or any refractive surgery procedure, we recommend you consider a doctor who has been evaluated and certified by the USAEyes nonprofit organization. Locate a USAEyes Evaluated & Certified Lasik Doctor.

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Recent Lasik Regression Medical Journal Articles...

Related Articles

The Correlation Analysis between Corneal Biomechanical Properties and the Surgically Induced Corneal High-Order Aberrations after Small Incision Lenticule Extraction and Femtosecond Laser In Situ Keratomileusis.

J Ophthalmol. 2015;2015:758196

Authors: Wu W, Wang Y

Background. To investigate the correlation between corneal biomechanics and the surgically induced corneal high-order aberrations (HOAs) after small incision lenticule extraction (SMILE) and femtosecond laser in situ keratomileusis (FS-LASIK). Methods. A total of 150 right myopic eyes that underwent SMILE or FS-LASIK surgery were included in this retrospective study, 75 eyes in each group. The corneal hysteresis (CH) and the corneal resistance factor (CRF) with the corneal HOAs of the anterior, posterior, and total cornea were assessed preoperatively and three months postoperatively. Multivariate linear regression was applied to determine the correlations. Results. The preoperative CRF was significantly correlated with the induced 3rd-6th-order HOAs and spherical aberration of the anterior surface and the total cornea after SMILE and FS-LASIK surgeries (P < 0.05), postoperatively. The CRF was significantly correlated with the induced vertical coma of the anterior and posterior surfaces and the total cornea after SMILE surgery (P < 0.05). There was a significant correlation between the CRF and the induced posterior corneal horizontal coma after FS-LASIK surgery (P = 0.013). Conclusions. The corneal biomechanics affect the surgically induced corneal HOAs after SMILE and FS-LASIK surgery, which may be meaningful for screening the patients preoperatively and optimizing the visual qualities postoperatively.

PMID: 26483975 [PubMed]


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