In-vivo architectural analysis of intrastromal incisions after INTRACOR surgery using Fourier-domain OCT and Scheimpflug imaging

• Autores: Tony Guedj, Arié Danan, Dan Alexandre Lebuisson
• Localización: Journal of Emmetropia: Journal of Cataract, Refractive and Corneal Surgery, ISSN-e 2171-4703, Vol. 2, Nº. 2, 2011, págs. 85-91
• Idioma: inglés
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• Resumen

  • Intrastromal incisions created using the Technolas Femtosecond Workstation 520F have been analyzed by in-vivo imaging of the anterior segment based on the Scheimpflug and interferometry principles of the Pentacam (Oculus) and the OCT RTVUE 100 (Optovue) imaging systems. The arrangement, orientation and size of the incisions in the stroma have been observed. The INTRACOR treatment is within a 1.7–3.4 mm optical zone. At least 100 µm separate the incisions from the Bowman’s membrane and endothelium. These incisions slant toward the apex; the size of incision increases from the periphery to the centre.

    Spacing between the incisions was similar, 0.20 mm. Morphological analysis enabled 3D INTRACOR profile modelling. We have visualised intrastromal incisions after INTRACOR surgery. We showed that Fourier-domain OCT and Scheimpflug imaging can be used to investigate the pattern, orientation and size of intrastromal incisions. This new invivo corneal exploration after surgical presbyopic treatment with INTRACOR establishes new foundations to investigate the technique’s mode of action.