Managing Post Keratoplasty Astigmatism

Figures & data

Table 1 Quick-View Summary of Interventions

	Indications for treatment
Suture adjustment	During the initial postoperative period spanning 12 to 18 months, the strategic practice of selective suture removal is frequently used to modulate the healing process. Additional treatment modalities are typically initiated three months after the removal of all sutures.
Limbal relaxing incisions or compression sutures	Post suture removal these techniques provide a minimally invasive modality for addressing residual astigmatism when glasses or contact lenses are not providing satisfactory vision correction.
Excimer Laser based procedures	Topography-guided PRK or LASIK are both effective options for improving post-keratoplasty astigmatism. These procedures use advanced technology to map the irregularities of the corneal surface and guide the laser in reshaping it precisely. By customizing the treatment based on the corneal topography, these techniques can address the specific astigmatism present after keratoplasty, leading to improved vision outcomes for patients.
Intrastromal corneal ring segments	Intrastromal corneal ring segments have shown promise in improving post-keratoplasty astigmatism. These segments are inserted into the cornea to reshape its curvature. By altering the corneal shape, these segments can help address astigmatism following keratoplasty, offering patients another viable option for vision improvement.
IOL based treatment	IOL based treatments involve implanting special IOLs that can correct astigmatism along with addressing other vision issues like cataracts or refractive errors. They can be used in combination with the other options above to provide a comprehensive solution for patients with post-keratoplasty astigmatism.
Repeat corneal transplantation	In instances where alternative modalities for vision correction have proven ineffective, recurrent corneal transplantation may emerge as the ultimate recourse.