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Ipsilateral rotational autokeratoplasty: a review
F Arnalich-Montiel1, J K G Dart
1Corneal and External Disease Service, Moorfields Eye Hospital NHS Foundation Trust, London, UK.
Eye (London, England)
|January 13, 2009
Summary
Ipsilateral rotational autokeratoplasty (IRA) treats localized corneal opacity by retaining host endothelium, reducing rejection risk and steroid use. While visual acuity may be slightly lower than penetrating keratoplasty, IRA offers significant benefits for specific patient groups.
Area of Science:
- Ophthalmology
- Corneal Surgery
- Vision Science
Background:
- Corneal opacity is a leading cause of blindness globally.
- Keratoplasty is a surgical treatment for corneal opacities.
- Various keratoplasty techniques exist, including deep anterior lamellar allokeratoplasty, penetrating allokeratoplasty, and autokeratoplasty.
Purpose of the Study:
- To review the indications, surgical technique, and outcomes of ipsilateral rotational autokeratoplasty (IRA).
- To evaluate the benefits and limitations of IRA compared to other keratoplasty procedures.
Main Methods:
- Review of existing literature on ipsilateral rotational autokeratoplasty.
- Description of patient selection criteria for IRA.
- Explanation of surgical planning and technique for IRA.
- Analysis of outcomes, including visual acuity and complications.
Main Results:
- IRA is indicated for localized corneal opacities with sufficient clear cornea (4-5 mm diameter).
- Surgical planning can involve digital image manipulation or formulas.
- IRA may result in higher astigmatism and reduced pupillary clear zone compared to penetrating keratoplasty.
- Key benefits include retention of host endothelium, elimination of endothelial rejection risk, and reduced need for postoperative steroids.
Conclusions:
- Ipsilateral rotational autokeratoplasty is a viable option for select patients with corneal opacity.
- The procedure minimizes risks associated with allograft rejection and endothelial cell loss.
- IRA offers advantages in specific high-risk populations, such as pediatric patients and those with vascularized corneas.
