Refractive surgery for hyperopia

In general, refractive surgery for hyperopia is not as
effective or reliable as for myopia. However, following
procedures are used:

1. Holmium laser thermoplasty has been used for
low degree of hyperopia. In this technique, laser spots
are applied in a ring at the periphery to produce central
steepening. Regression effect and induced
astigmatism are the main problems.

2. Hyperopic PRK using excimer laser has also been
tried. Regression effect and prolonged epithelial
healing are the  
  main problems encountered.

3. Hyperopic LASIK is effective in correcting
hypermetropia upto +4D.

4. Conductive keratoplasty (CK) is nonablative and
nonincisional procedure in which cornea is steepened
by collagen shrinkage through the radiofrequency
energy applied through a fine tip inserted into the
peripheral corneal stroma in a ring pattern. This
technique is effective for correcting hyperopia of upto
3D.