Anterior segment optical coherence tomography findings in type I Boston keratoprosthesis

Anterior segment optical coherence tomography findings in type I Boston keratoprosthesis

Author Silva, Luzia Diegues Autor UNIFESP Google Scholar
Santos, Albert Autor UNIFESP Google Scholar
de Sousa, Luciene Barbosa Autor UNIFESP Google Scholar
Allemann, Norma Google Scholar
de Oliveira, Lauro Augusto Autor UNIFESP Google Scholar
Abstract Purpose: To report the results of high-resolution anterior segment optical coherence tomography of patients implanted with a type 1 Boston keratoprosthesis (KPro). Methods: The retrospective study cohort included 11 eyes of 11 patients (average age, 58.4 years

range, 34-83 years). All subjects underwent anterior segment optical coherence tomography at a single posteoperative time point. The main outcome measures were retro-backplate and retro-optic membrane formation, thinning and gap formation of the corneal carrier graft (melting), and degree of angle closure. Results: Preoperative diagnoses included chemical burn (55%), failed corneal transplant (36%), and Stevens-Johnson syndrome (9%). The mean postoperative follow-up duration was 38.5 (range, 12-72) months. The most frequent findings of anterior segment optical coherence tomography were retroprosthetic membrane formation (63%, 7/11), thinning of the corneal carrier graft (melting

55%, 6/11), and a narrow or closed angle (91%, 10/11). Other less common findings were epithelial growth over the optic surface and periprosthetic cyst formation. Retroprosthetic membrane formation was observed in all patients with melting (6/11). Conclusions: Detailed postoperative examination and visualization of subtle changes of keratoprosthesis implanted eyes by slit lamp biomicroscopy are often difficult. Anterior segment optical coherence tomography is a useful, noninvasive, and quantitative imaging technique that provides useful information to postoperatively monitor the anatomic stability of an implanted keratoprosthesis.
Keywords Keratoprosthesis
Corneal diseases
Visual prosthesis
Optical coherence tomography
Anterior eye segment
xmlui.dri2xhtml.METS-1.0.item-coverage Sao Paulo
Language English
Sponsor Ministry of Education - Brazil (CAPES) [2374/2011]
Grant number CAPES [2374/2011]
Date 2018
Published in Arquivos Brasileiros De Oftalmologia. Sao Paulo, v. 81, n. 1, p. 42-46, 2018.
ISSN 0004-2749 (Sherpa/Romeo, impact factor)
Publisher Consel Brasil Oftalmologia
Extent 42-46
Origin http://dx.doi.org/10.5935/0004-2749.20180010
Access rights Closed access
Type Article
Web of Science ID WOS:000427401000010
URI https://repositorio.unifesp.br/handle/11600/53831

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