Swept source OCT with air puff chamber for corneal dynamics measurements

Karol Karnowski; David Alonso-Caneiro; Bartlomiej Kaluzny; Andrzej Kowalczyk; Maciej Wojtkowski

doi:10.1117/12.908848

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Swept source OCT with air puff chamber for corneal dynamics measurements

Conference paper

Open access

Peer reviewed

Swept source OCT with air puff chamber for corneal dynamics measurements

Karol Karnowski, David Alonso-Caneiro, Bartlomiej Kaluzny, Andrzej Kowalczyk and Maciej Wojtkowski

Proceedings Volume 8209, Ophthalmic Technologies XXII, Vol.8209(1), pp.1-7

Conference on Ophthalmic Technologies, 22nd (San Francisco, United States, 21-Jan-2012–22-Jan-2012)

Proceedings of SPIE, S P I E - Society of Photo-Optical Instrumentation Engineers

2012

DOI: https://doi.org/10.1117/12.908848

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Abstract

cornea

optical coherence tomography

eye

polishing

error analysis

glasses

interferometeres

None of currently used tonometers produce estimated IOP values that are free of errors. Measurement incredibility arises from indirect measurement of corneal deformation and the fact that pressure calculations are based on population averaged parameters of anterior segment. Reliable IOP values are crucial for understanding and monitoring of number of eye pathologies e. g. glaucoma. We have combined high speed swept source OCT with air-puff chamber. System provides direct measurement of deformation of cornea and anterior surface of the lens. This paper describes in details the performance of air-puff ssOCT instrument. We present different approaches of data presentation and analysis. Changes in deformation amplitude appears to be good indicator of IOP changes. However, it seems that in order to provide accurate intraocular pressure values an additional information on corneal biomechanics is necessary. We believe that such information could be extracted from data provided by air-puff ssOCT.

Details

Title: Swept source OCT with air puff chamber for corneal dynamics measurements
Authors: Karol Karnowski (Author) - Nicolaus Copernicus University
David Alonso-Caneiro (Author) - Nicolaus Copernicus University
Bartlomiej Kaluzny (Author) - Nicolaus Copernicus University
Andrzej Kowalczyk (Author) - Nicolaus Copernicus University
Maciej Wojtkowski (Author) - Nicolaus Copernicus University
Contributors: F Manns (Editor)
P G Soderberg (Editor)
A Ho (Editor)
Publication details: Proceedings Volume 8209, Ophthalmic Technologies XXII, Vol.8209(1), pp.1-7
Conference details: Conference on Ophthalmic Technologies, 22nd (San Francisco, United States, 21-Jan-2012–22-Jan-2012)
Series: Proceedings of SPIE
Publisher: S P I E - Society of Photo-Optical Instrumentation Engineers
Date published: 2012
DOI: 10.1117/12.908848
ISSN: 1605-7422
Grant note: N N402482039 / Polish Ministry of Science and Higher Education Supervisor LIDER/11/114/L-1/09/NCBiR/2010 / National Centre for Research and Development; National Centre for Research & Development, Poland EURYI-01/2008-PL / EuroHORCs-European Science Foundation EURYI; European Science Foundation (ESF) 8.2 / Polish Government within Integrated Regional Development Operational Programme Foundation for Polish Science N N402 084435 / Polish Ministry of Science and Higher Education; Ministry of Science and Higher Education, Poland European Social Fundation Grant for Young Scientists Development of Faculty of Physics, Astronomy and Applied Informatics
Organisation Unit: School of Science, Technology and Engineering
Language: English
Record Identifier: 99973595602621
Output Type: Conference paper

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Optics; Radiology, Nuclear Medicine & Medical Imaging