Procedure

The procedure employs a holmium

Holmium

Holmium is a chemical element with the symbol Ho and atomic number 67. Part of the lanthanide series, holmium is a rare earth element. Its oxide was first isolated from rare earth ores in 1878 and the element was named after the city of Stockholm....

 laser to place a ring of concentric laser burns on the cornea

Cornea

The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. Together with the lens, the cornea refracts light, with the cornea accounting for approximately two-thirds of the eye's total optical power. In humans, the refractive power of the cornea is...

 between 6mm and 7mm in diameter. These burns cause a ring of constriction on the peripheral cornea causing the cornea to steepen making the eye focus better at near. This procedure may regress somewhat over time. It is similar to the conductive keratoplasty

Conductive keratoplasty

Conductive keratoplasty is a type of refractive surgery that uses radio waves to adjust the contour of the cornea by shrinking the corneal collagen around it. It is used to treat mild to moderate hyperopia. It is a non-invasive alternative to other types of eye surgery....

(CK) procedure where a micro-needle high frequency probe is used to make a ring of corneal burns in a similar fashion.

Patents

This is an FDA procedure patented by Sunrise Technologies and currently owned by Priavision.