Radial Keratotomy Complication
- Refractive surgery procedure to correct mild to moderate degrees of myopia (2 to 5 D)
- Creating a series of radial corneal incisions.
- These incisions weaken the corneal structure and induce a slight bulging of the mid peripheral corneal with an associated flattening of the central optical zone.
- Surgical complications may include:
- Full thickness corneal perforation, which may lead to intraocular infection, endothelial damage, corneal decompensation, iris or lens injury, and induction of irregular astigmatism
- Incorrect use of the surgical nomogram
- Inadvertent extension of the incision into the optical zone
- Postoperative problems may include:
- Symptoms of ocular pain, glare, photophobia, diminished quality of vision and lost of best corrected visual acuity
- Irregular astigmatism
- Contact lens fitting problems
- Epithelial plugs filling the incisions with secondary wound gap
- Infection complicated with delayed wound healing
- Limbal vascularization
- If the perforation is extensive and non self-sealing (macro-perforation) it must be sutured to restore the ocular integrity.
- Reduced visual function not amenable to non-surgical treatment such as spectacle correction or contact lenses may be treated surgically with:
- Excimer laser phototherapeutic treatment
- Penetrating keratoplasty.