Patent ID: 11918287
Assignee: NOVA-SIGHT LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 17:
18. The device of claim 15, further comprising,
an eye tracker configured for determining a gaze direction of a second eye of a person viewing said display screen and for providing a determined gaze direction to said computer processor;
said computer processor further configured:
to generate a second display image from a received digital base image and based on a gaze direction of the second eye received from said eye tracker, wherein:
i. a central-vision portion of said second display image that corresponds to a portion of the field of view of the second eye that includes said determined gaze direction, wherein the central-vision portion is either:
unmodified compared to a corresponding portion in said base image; or
modified so that visual characteristics of said central-vision portion of said second display image are changed compared to corresponding visual characteristics of a corresponding portion in said base image which modification improves the image quality of said central-vision portion relative to the corresponding portion in said base image, and
ii. a non-central vision portion of said second display image that is different from said central-vision portion is either:
unmodified compared to a corresponding portion in said base image; or
modified so that visual characteristics of said noncentral vision portion of said second display image are changed compared to corresponding visual characteristics of a corresponding portion in said base image,

wherein as a result of said generating, an image quality of said non-central vision portion of said second display image is lower than the image quality of said central-vision portion of said second display image; and
to display said generated second display image on a display screen functionally associated with said computer processor so that the second eye of the person views said second display image on said display screen, wherein said non-central portion of said second display image is modified so that visual characteristics of said non-central vision portion of said second display image are changed compared to corresponding visual characteristics of a corresponding portion in said base image which modification degrades the image quality of said non-central vision portion relative to the corresponding portion in said base image, wherein said modification which degrades the image quality of said non-central vision portion relative to the corresponding portion in said base image includes at least reduced contrast.