Modified relaxing incision technique for postkeratoplasty astigmatism

Area of Science:

• Ophthalmology
• Corneal Surgery
• Refractive Surgery

Background:

• Postkeratoplasty astigmatism is a common complication following corneal transplantation.
• Standard relaxing incision techniques may not always achieve the desired correction or may require adjustments.

Observation:

• A modified technique involves planned spreading and recutting of initial relaxing incisions at 1-3 week intervals post-surgery.
• The depth and length of the incision can be adjusted based on the required effect.
• This procedure can be repeated for late regression of the desired astigmatic correction.

Findings:

• The modified technique effectively corrects postkeratoplasty astigmatism, allowing for spectacle or contact lens correction.
• Corrections exceeding 10 diopters are achievable.
• The technique allows for astigmatism evaluation without sutures, and no complications like perforations, infections, or graft rejections were noted in seven cases.

Implications:

• This modified relaxing incision technique offers a safe and effective method for managing significant postkeratoplasty astigmatism.
• It provides a valuable option for visual rehabilitation in corneal transplant patients.
• Further studies can explore long-term outcomes and broader applications.