Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Adaptive Optics and Wavefront Control for Biological Systems V |
| Herausgeber (Verlag) | SPIE |
| Seitenumfang | 10 |
| ISBN (elektronisch) | 9781510624146 |
| Publikationsstatus | Veröffentlicht - 2019 |
| Veranstaltung | Adaptive Optics and Wavefront Control for Biological Systems V 2019 - San Francisco, USA / Vereinigte Staaten Dauer: 3 Feb. 2019 → 4 Feb. 2019 |
Publikationsreihe
| Name | Progress in Biomedical Optics and Imaging - Proceedings of SPIE |
|---|---|
| Band | 10886 |
| ISSN (Print) | 1605-7422 |
Abstract
Surgery with fs-laser in the posterior part of the eye could be useful for separation of tractional epiretinal membrane and vitreous floaters treatment. However, focus degradation occurs near the retina due to induced aberrations by cornea and lens. To overcome this issue, adaptive optics with wavefront sensor and wavefront modulator can be utilized. We demonstrate an alternative concept for image guided femto second laser (fs-laser) surgery in the posterior eye with wavefront sensorless adaptive optics (WFSLAO). Our laboratory setup consists of an 800 nm fs-laser and a superluminescent diode (SLD) with 897.2 nm central wavelength. The SLD is used for optical coherence tomography (OCT) whereby the light for the OCT sample arm and the fs-laser share the same optical path which contains a deformable mirror, scanner and focusing optics. Energy calibrated photodiodes are used to measure the threshold energy for a laser induced optical breakdown inside a water filled chamber that acts as simple eye model. OCT image based metrics were used to determine a set of Zernike polynomials that describe a near optimal deformable mirror state. Such a mirror state improved OCT resolution and at the same time lowered the required fs-laser energy for a laser induced optical breakdown inside the eye model substantially.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Werkstoffwissenschaften (insg.)
- Biomaterialien
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
- Medizin (insg.)
- Radiologie, Nuklearmedizin und Bildgebung
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- BibTex
- RIS
Adaptive Optics and Wavefront Control for Biological Systems V. SPIE, 2019. 1088603 (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Band 10886).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Wavefront sensorless adaptive optics for optical coherence tomography guided femtosecond laser surgery in the posterior eye
AU - Zabic, Miroslav
AU - Matthias, Ben
AU - Hahn, Jan
AU - Heisterkamp, Alexander
AU - Meyer, Heiko
AU - Ripken, Tammo
N1 - Funding Information: We acknowledge financial support for the project IKARUS (innovative cataract, age related presbyopia and retina treatment with ultrashort pulsed lasers; NO. 13N11847) by the German Federal Ministry of Education and Research (BMBF).
PY - 2019
Y1 - 2019
N2 - Surgery with fs-laser in the posterior part of the eye could be useful for separation of tractional epiretinal membrane and vitreous floaters treatment. However, focus degradation occurs near the retina due to induced aberrations by cornea and lens. To overcome this issue, adaptive optics with wavefront sensor and wavefront modulator can be utilized. We demonstrate an alternative concept for image guided femto second laser (fs-laser) surgery in the posterior eye with wavefront sensorless adaptive optics (WFSLAO). Our laboratory setup consists of an 800 nm fs-laser and a superluminescent diode (SLD) with 897.2 nm central wavelength. The SLD is used for optical coherence tomography (OCT) whereby the light for the OCT sample arm and the fs-laser share the same optical path which contains a deformable mirror, scanner and focusing optics. Energy calibrated photodiodes are used to measure the threshold energy for a laser induced optical breakdown inside a water filled chamber that acts as simple eye model. OCT image based metrics were used to determine a set of Zernike polynomials that describe a near optimal deformable mirror state. Such a mirror state improved OCT resolution and at the same time lowered the required fs-laser energy for a laser induced optical breakdown inside the eye model substantially.
AB - Surgery with fs-laser in the posterior part of the eye could be useful for separation of tractional epiretinal membrane and vitreous floaters treatment. However, focus degradation occurs near the retina due to induced aberrations by cornea and lens. To overcome this issue, adaptive optics with wavefront sensor and wavefront modulator can be utilized. We demonstrate an alternative concept for image guided femto second laser (fs-laser) surgery in the posterior eye with wavefront sensorless adaptive optics (WFSLAO). Our laboratory setup consists of an 800 nm fs-laser and a superluminescent diode (SLD) with 897.2 nm central wavelength. The SLD is used for optical coherence tomography (OCT) whereby the light for the OCT sample arm and the fs-laser share the same optical path which contains a deformable mirror, scanner and focusing optics. Energy calibrated photodiodes are used to measure the threshold energy for a laser induced optical breakdown inside a water filled chamber that acts as simple eye model. OCT image based metrics were used to determine a set of Zernike polynomials that describe a near optimal deformable mirror state. Such a mirror state improved OCT resolution and at the same time lowered the required fs-laser energy for a laser induced optical breakdown inside the eye model substantially.
KW - Fs-laser
KW - Ophthalmic laser surgery
KW - Optical coherence tomography
KW - Wavefront sensorless adaptive optics
UR - http://www.scopus.com/inward/record.url?scp=85066637389&partnerID=8YFLogxK
U2 - 10.1117/12.2509363
DO - 10.1117/12.2509363
M3 - Conference contribution
AN - SCOPUS:85066637389
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Adaptive Optics and Wavefront Control for Biological Systems V
PB - SPIE
T2 - Adaptive Optics and Wavefront Control for Biological Systems V 2019
Y2 - 3 February 2019 through 4 February 2019
ER -