LASIK has a complication called keratoectasia.
This complication, also known as corneal ectasia, is a condition similar to keratoconus.

It mainly refers to a condition that occurs after LASIK surgery, in which the strength of the cornea decreases and, due to the internal pressure of the eye, the cornea protrudes forward in a cone-like shape.

Please try to imagine this.
Suppose there is a food called mochi.
When mochi is grilled, it swells up like a balloon, doesn’t it?
This is similar to the condition of the eye, and when the eye bulges into a cone-like shape, it is called keratoectasia.
Because it is similar to keratoconus, it is difficult to achieve good vision, and correction is also difficult.

Treatment methods include corneal cross-linking, hard contact lenses, intracorneal ring segments, and corneal transplantation.

If the risks related to LASIK can be identified in advance, switching to ICL as an alternative surgery is also recommended.

Keratoectasia has a very low incidence rate in Japan, and it is estimated to occur in approximately 1 in 10,000 cases.