Post-penetrating keratoplasty astigmatism

Postoperative astigmatism is one of the common complications affecting visual outcomes after a penetrating keratoplasty. It can result from various factors related to host, donor and surgical technique, resulting in suboptimal visual outcome. While some of the measures taken during preoperative plan...

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Bibliographic Details
Published in:Survey of ophthalmology 2022-07, Vol.67 (4), p.1200-1228
Main Authors: Deshmukh, Rashmi, Nair, Sridevi, Vaddavalli, Pravin K, Agrawal, Tushar, Rapuano, Christopher J, Beltz, Jacqueline, Vajpayee, Rasik B.
Format: Article
Language:English
Subjects:
astigmatism
Astigmatism - etiology
Astigmatism - surgery
Corneal Diseases - etiology
Corneal Diseases - surgery
Humans
keratoplasty
Keratoplasty, Penetrating - adverse effects
Penetrating
Postoperative Complications - surgery
Refraction, Ocular
Retrospective Studies
Visual Acuity
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Summary:Postoperative astigmatism is one of the common complications affecting visual outcomes after a penetrating keratoplasty. It can result from various factors related to host, donor and surgical technique, resulting in suboptimal visual outcome. While some of the measures taken during preoperative planning and during actual surgery can reduce the magnitude of postoperative astigmatism, postoperative correction of astigmatism is often required in cases with high degrees of astigmatism. When spectacles and contact lenses fail to provide optimal visual outcomes, various surgical techniques that include astigmatic keratotomy, compression sutures, toric intraocular lens placement, and laser refractive procedures can be considered. When none of these techniques are able to achieve a desired result with in the acceptable optical range, a repeat keratoplasty is considered a last option. We discuss the various causes and management of complication of postoperative astigmatism occurring after a full thickness corneal transplantation surgery.
ISSN:0039-6257
1879-3304
DOI:10.1016/j.survophthal.2021.11.005