Journal article
Assessment of corneal dynamics with high-speed swept source Optical Coherence Tomography combined with an air puff system
Optics Express, Vol.19(15), pp.14188-14199
2011
PMID: 21934782
Abstract
We present a novel method and instrument for in vivo imaging and measurement of the human corneal dynamics during an air puff. The instrument is based on high-speed swept source optical coherence tomography (ssOCT) combined with a custom adapted air puff chamber from a non-contact tonometer, which uses an air stream to deform the cornea in a non-invasive manner. During the short period of time that the deformation takes place, the ssOCT acquires multiple A-scans in time (M-scan) at the center of the air puff, allowing observation of the dynamics of the anterior and posterior corneal surfaces as well as the anterior lens surface. The dynamics of the measurement are driven by the biomechanical properties of the human eye as well as its intraocular pressure. Thus, the analysis of the M-scan may provide useful information about the biomechanical behavior of the anterior segment during the applanation caused by the air puff. An initial set of controlled clinical experiments are shown to comprehend the performance of the instrument and its potential applicability to further understand the eye biomechanics and intraocular pressure measurements. Limitations and possibilities of the new apparatus are discussed.
Details
- Title
- Assessment of corneal dynamics with high-speed swept source Optical Coherence Tomography combined with an air puff system
- Authors
- David Alonso-Caneiro (Author) - Nicolaus Copernicus UniversityKarol Karnowski (Author) - Nicolaus Copernicus UniversityBartlomiej J. Kaluzny (Author) - Nicolaus Copernicus UniversityAndrzej Kowalczyk (Author) - Nicolaus Copernicus UniversityMaciej Wojtkowski (Corresponding Author) - Nicolaus Copernicus University
- Publication details
- Optics Express, Vol.19(15), pp.14188-14199
- Publisher
- Optica
- Date published
- 2011
- DOI
- 10.1364/OE.19.014188
- ISSN
- 1094-4087
- PMID
- 21934782
- Grant note
- EURYI-01/2008-PL / EuroHORCs-European Science Foundation N N402 084435; N N402 482039 / Polish Ministry of Science and Higher Education; Ministry of Science and Higher Education, Poland
- Organisation Unit
- School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99973593702621
- Output Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Optics