80 results about "Right visual field" patented technology

Visual aids and associated methods for improving the eye sight of low vision patients are provided. Generally, the devices of the present disclosure address the needs of age-related macular degeneration (AMD) and other low vision patients by providing a magnified retinal image while keeping a large visual field of view. Further, the devices of the present disclosure allow direction of the magnified retinal image away from damaged portions of the retina and towards healthy, or at least healthier, portions of the retina. The devices of the present disclosure are also configured for implantation within the eye using minimally invasive surgical procedures. Methods of utilizing the devices of the present disclosure, including surgical procedures, are also provided.

Computer-implemented method for enhancing a participant's cognition, including, e.g., visual memory, utilizing a computing device to present visual stimuli for training, and to record responses from the participant. Multiple graphical elements are provided for visual presentation to the participant. A temporal sequence of a plurality of the graphical elements is visually presented, including displaying each graphical element in the sequence at a respective location in a visual field for a specified duration, then ceasing to display the graphical element. The presented graphical elements include at least two matching graphical elements. The participant is required to respond to the presented sequence, including indicating locations of matching graphical elements. A determination is made as to whether the participant responded correctly, and the duration modified based on the determining. The visually presenting, requiring, determining, and modifying are repeated one or more times in an iterative manner to improve the participant's cognition.

A spectacle system is disclosed for shifting the field expansion property of peripheral prisms from the upper and lower peripheral visual fields toward the central visual field of a person with peripheral field loss, and particularly hemianopia, while maintaining the lateral field expansion. In terms of perceived image, the spectacle system includes image-shifting devices that shift the perceived images from the central missing visual fields toward the upper and lower peripheral visual fields. The image-shifting devices are placed out of the central visual field and do not interfere with the normal central or foveal vision of the wearer. The spectacle system can be fitted onto one or both carrier lenses of a pair of spectacles and includes at least one image-shifting device. The image-shifting device includes a plurality of image-shifting elements. In one embodiment, the image-shifting device includes a plurality of image-shifting mirror elements that are arranged to form a Fresnel-like mirrors based prism. In another embodiment, the image-shifting elements can include either a plurality of image shifting mirrors or a plurality of image-shifting prisms that are oriented such that the optical axis of each image-shifting element forms an acute angle with the horizontal visual meridian of the person wearing the spectacles.

A kind of wide visual field mediate to near distances progressive multi-focal lens, it belongs to spectacle or same spectacle's characteristic protective lens, which consists of near and intermediate visual areas, the described lens has progressive surfaces which designed gradually step by step with different diopters in the mediate intermediate and near visual areas.The narrowest visual corridor (path) has width 18-20 mm, the described lens from central line down to near visual area has length 10 mm. This lens has wider visual corridor in the intermediate area, also has six focci are reasonable located in the corridor, will affect to improve vision of wearer for the visual fields, increase up the degree of width and clarity, of vision also strengthen the comfortable feelings when wore the spectacle; in addition, it will affect to delete the damage of vision by current market lens which made and caused by incorrect eye's examination. This lens is used for corrective presbyopia vision, specially corrective for mediate and near distance presbyopia vision.

A visual field testing apparatus for scanning the visual field of a human eye in great detail, precision, and clarity so as to detect the smallest blind area whereby allowing users the ability of early detection of glaucoma and other eye diseases of visual loss. The apparatus is small and inexpensive so that anyone can afford to purchase it and self-test without assistance so that the user can test frequently at home which further leads to early detection of eye diseases. Because of its great precision and detail in test results, the present invention is especially useful to doctors and researchers. One embodiment of the present invention is a visual field tester which comprises: (a) a recording surface having eye fixation means to fixate an eye's visual field relative to said recording surface; and (b) a handheld scanning device which has a test mark for detecting very small blind areas in said eye's visual field and marking means for mapping said detected very small blind areas onto said recording surface.

This invention provides an analyzer for judging whether or not a tangible component is present in a sample in a preparation, and analyzing, if a tangible component is present, the tangible component with efficiency and high accuracy. For this purpose, an analyzer (100) of the present invention analyzes a tangible component in a sample (23) held by a preparation (20). The analyzer (100) checks whether or not a tangible component is present in the sample (23) by extensively observing an area in a certain visual field in which area the tangible component is assumed to be present. If the tangible component is judged to be present, the analyzer (100) analyzes the tangible component. Then, another visual field is selected, and another analysis is started therein so as to analyze only in the vicinity of the area where the tangible component was judged to be present. The analyzer (100) can determine whether or not a tangible component is present, and can analyze the tangible component with efficiency and high accuracy.

The present invention extends to methods, systems, and computer program products for replicating text at a virtual keyboard. Characters submitted to, displayed at, or accumulated for submission to an application data field are echoed at a keyboard data field that is in relatively close proximity to virtual keys used to enter the characters. Thus, a user does not have to alter their field of view to the application data field to determine what was submitted to the application data field, what was entered at the application data field, or what is to be submitted to the application data field. Accordingly, embodiments of the invention permit a user to much more easily see what they typed using a virtual keyboard. The need to alter a visual field of focus between an application data field and a virtual keyboard is significantly reduced, if not eliminated.

A device and method are provided for treating the visual system of a human including the retina, visual cortex and / or other neuro-cellular structures. The method includes the steps of locating and defining a blind zone of deteriorated vision within the human's visual system, defining a treatment area which is located predominantly within the blind zone, and treating the human's visual system by presenting visual stimuli to the human's visual system. The majority of the visual stimuli are presented to at least a portion of the blind zone.

The invention relates to mobile computer devices, front-mounted optical systems and computer program products allowing perimetry measurement.

The invention relates to a radiance calibration method of a large visual field optical remote sensing instrument. The radiance calibration method includes the following steps: the radial direction of a calibration system is changed by means of an external reflection unit, the radiation which has high-quality Burt characteristic in the calibration system radiation source is reflected to the visual field of the large visual field optical remote sensing instrument, and the full visual field radiance is calibrated. By means of the radiance calibration method of the large visual field optical remote sensing instrument, according to the multidirectional structural features of the large visual field, an external reflecting system of a circle structure composed of special plane mirrors is designed, a fixed angle is formed, the radiation with the high-quality Burt characteristic within an angle in a range of from a integrating sphere plus 30 degrees and the integrating sphere minus 30 degrees is reflexed to the direction meeting system calibration, therefore, the integrating sphere in not enlarged, the radiation with the high-quality Burt characteristic within the angle in the range of from the integrating sphere plus 30 degrees and the integrating sphere minus 30 degrees is fully used, and the radiance calibration of the large visual field optical remote sensing instrument is achieved.