A method for quantifying limbal stem cell niches using OCT imaging

Michel Haagdorens, Joséphine Behaegel, Jos Rozema, Veerle Van Gerwen, Sofie Michiels, Sorcha Ní Dhubhghaill, Marie José Tassignon, Nadia Zakaria

Onderzoeksoutput: Articlepeer review

21 Citaten (Scopus)

Samenvatting

Aims To evaluate the efficacy of Fourier domain-optical coherence tomography (FD-OCT) in imaging and quantifying the limbal palisades of Vogt and to correlate these images with histological findings. Methods The superior and inferior limbal region of both eyes of 50 healthy volunteers were imaged by FD-OCT. Images were processed and analysed using Matlab software. In vitro immunofluorescent staining of a cadaveric donor limbus was analysed to correlate the presence of stem cells in the visualised structures. Results FD-OCT could successfully visualise limbal crypts and the palisades of Vogt in the limbus region. Fluorescent labelling confirmed the presence of stem cells in these structures. The mean palisade ridge width (Î " PR) and the mean interpalisade epithelial rete peg width (Î " ERP) were both of the order of 72 μm, leading to a palisade density (PD) of about 7.4 palisades/mm. A significant difference in Î " PR, Î " ERP and PD was seen between the inferior and superior sides of the right eye and the superior sides of the left and right eye(p<0.05.). A significant influence of iris colour on parameters Î " PR, Î " ERP and PD was found, and of age on PD and Î " ERP (p<0.05). Conclusions In vivo OCT imaging is a safe and effective modality to image the limbus and can be used to visualise the palisades of Vogt. Image processing using Matlab software enabled quantification and density calculation of imaged limbal palisades of Vogt. This technique may enhance targeted limbal biopsies for transplantation.

Originele taal-2English
Pagina's (van-tot)1250-1255
Aantal pagina's6
TijdschriftBritish Journal of Ophthalmology
Volume101
Nummer van het tijdschrift9
DOI's
StatusPublished - 1 sep 2017

Bibliografische nota

Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

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