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Is regression after LASIK more likely if I have high myopia?

Eye & LASIK

I have high myopia. Am I more likely to get regression after LASIK?

DOCTOR’S ANSWER (2)
Yes, generally speaking, the risk of regression is somewhat higher the higher a patient's pre-existing myopia before undergoing LASIK.

Factors contributing to this include the fact that the corneal shape is changed more for high corrections, and also because some very high myopes may not fully stabilise even when they get older.

Having said that, how high is high?

Different studies give different results, but it is my experience that most patients with myopia up to around -7D or -8D (700-800 degrees) still get very good results. Even if their risk of regression is somewhat higher than someone with 200 or 300 degrees of myopia, very few regress to the extent that they need to wear glasses again. In other words, if regression occurs it is usually in the region of 50-75 degrees, where distance vision is still not too badly affected.

Patients who are particularly concerned about this can consider simultaneous LASIK with corneal crosslinking, as there are now small studies suggesting that regression can be reduced with this extra treatment.

Patients with even higher degrees of myopia may want to consider options such as ICL surgery, especially if their corneas are thinner than average.

0 154 views 8 Jan 2019

Unfortunately, the answer is yes. Patients with higher degrees of myopia are known to experience more frequent regression of their original myopic refractive error after Lasik refractive surgery.

This is likely related to residual cornea thickness after surgery, and also the larger degree of ablation (for higher degrees of myopia).

Fortunately, we have in recent years a proven treatment of riboflavin collagen cross-linking (commonly termed Lasik-Extra) that helps to prevent this from occurring. Do discuss these options with your Ophthalmologist prior to deciding on your refractive surgery!

ESG

0 87 views 22 Jan 2019
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