Carl Zeiss Meditec Gmbh

Carl Zeiss Meditec Ag

Conor Leahy

Matthew J Everett

Keith E O'Hara

David Nolan

Mary K Durbin

Jennifer Y Luu

Gregory G Anderson

Priya Kulkarni

Keith Brock

Alexandre R Tumlinson

Luis De Sisternes

Muzammil A Arain

Lars Omlor

Sophie Kubach

Yingjian Wang

Sunny Virmani

Niranchana Manivannan

Scott Chang

Jeffrey Schmidt

Michael Chen

Katherine Makedonsky

Kevin Meng

Ali Fard

Richard Orlowski

Pranav Malvania

Gary Lee

Benjamin Kwok

Archana Kolli

Zubir Khan

Keith O'hara

Gregory Anderson

Jennifer Luu

An ophthalmic imaging system provides an automatic focus mechanism based on the difference of consecutive scan lines. The system also provides of user selection of a focus point within a fundus image. A neural network automatically identifies the optic nerve head in an FA or ICGA image, which may be used to determine fixation angle. The system also provides additional scan tables for multiple imaging modalities to accommodate photophobia patients and multi-spectrum imaging options.

Patient tuned ophthalmic imaging system with single exposure multi-type imaging, improved focusing, and improved angiography image sequence display

An ophthalmic imaging system has a specialized graphical user interface GUI to convey information for manually adjusting control inputs to bring an eye into alignment with the device. The GUI provides additional information such as laterality, visual alignment overlay aids, and live video feeds. The system further applies automatic gain control to fundus images, synchronizes itself with other ophthalmic systems on a computer network, and provides an optimized image load and display system.

Systems and methods for improved ophthalmic imaging

Ophthalmic imaging systems, particularly slit-scanning ophthalmo-scopes, are capable of characterizing refraction over the entire field of view of the system. Light from the light source of the system illuminates a region of the eye and the returning light is measured on a detector. The deviation of the location of the returning light from a predetermined location on the detector is measured. The deviation corresponds to the mismatch between the refractions of the imaging system and the eye. The light can be scanned across the full field of view to characterize the entire field. A second illumination source traveling along a second illumination path can be used to improve the characterization. The characterization can be of use for optimizing the focus of the instrument and for assessing the condition of the eye, including assessing myopia and astigmatism in the periphery.

Systems and methods for characterizing refraction with ophthalmic imaging systems

An ophthalmic imaging system provides a user interface to facilitate the montaging of scan images collected with various imaging modalities, such as images collected with a fundus imaging system or an optical coherence tomography (OCT) system. The amount of each constituent image used in the montage is dependent upon its respective quality. During the collecting of scans (constituent images) for montaging, any scan may be designated for rescanning, such as if its current quality is deemed less than sufficient. In the case of using an OCT system to collect constituent images (e.g., cube scans), the scanned region of a constituent image may be modified based on physical characteristics of the eye being scanned.

Systems and methods for improved montaging of ophthalmic imaging data

Methods to create montages of wide-field fundus images, while correcting for the projective distortion inherent to an imaging system are described. The methods use specific knowledge of the imaging geometry of the particular imaging system to map the fundus images onto a set of 3D ray vectors, which allows them to be stitched together efficiently and precisely. After co-aligning the images using feature detection and matching, the registered images are projected back into 2D to generate the final montaged image. The method could be used on any type of wide-field fundus images including, but not limited to, those generated from optical coherence tomography, optical coherence tomography angiography, and broad-line fundus imaging systems.

Montaging of wide-field fundus images

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Dublin, CA, United States of America

Conor Leahy