Selective suture removal can reduce postkeratoplasty astigmatism.

Area of Science:

• Ophthalmology
• Corneal Surgery
• Transplantation

Background:

• Penetrating keratoplasty is a common surgical procedure for corneal blindness.
• Suture techniques significantly influence visual recovery and astigmatism post-transplantation.
• Optimizing suture removal protocols is crucial for successful outcomes.

Purpose of the Study:

• To evaluate the efficacy of selective interrupted suture removal after penetrating keratoplasty.
• To assess the impact of this technique on visual recovery and astigmatism.
• To compare complication rates with standard suturing methods.

Main Methods:

• A cohort of 204 eyes underwent penetrating keratoplasty using interrupted and continuous sutures.
• Interrupted sutures were selectively removed based on keratometry and topography.
• Two groups differed in suture removal timing: 6-8 weeks (Group I) and 3 weeks (Group II).

Main Results:

• Mean astigmatism decreased from 7.5 to 2.6 diopters between 1 and 14-16 months post-surgery.
• Complete suture removal was achieved in 75 eyes without significant corneal curvature changes.
• No increase in complications was observed compared to other suturing techniques.

Conclusions:

• Selective removal of interrupted sutures post-penetrating keratoplasty enhances visual recovery.
• This method improves outcomes without increasing risks associated with corneal transplantation.
• Early and selective suture management is key to optimizing visual results.