Cataract surgery on post radial keratotomy patients

Area of Science:

• Ophthalmology
• Corneal Surgery
• Cataract Surgery

Background:

• Previous radial keratotomy (RK) can complicate cataract surgery.
• RK incisions may affect corneal biomechanics and wound healing.
• Evaluating surgical approaches in RK patients is crucial.

Purpose of the Study:

• To compare three cataract surgery incision techniques in eyes with prior RK.
• To assess the mechanical integrity of the cornea post-surgery.
• To identify the safest approach for cataract surgery in RK patients.

Main Methods:

• Three groups of 8 eyes each with 16 RK incisions were studied.
• Group 1: Superior cataract incision.
• Group 2: Temporal cataract incision.
• Group 3: Temporal incision with a precautionary stabilizing suture across RK incisions.

Main Results:

• Group 1 showed 37.5% intraoperative dehiscence, requiring sutures.
• Group 2 had 20% intraoperative dehiscence, requiring sutures.
• Group 3, with stabilizing sutures, had no intraoperative dehiscences.

Conclusions:

• A precautionary stabilizing suture across RK incisions enhances safety during cataract surgery.
• This technique reduces the risk of wound dehiscence.
• Stabilizing sutures also appear to minimize post-operative astigmatism.