Systems and methods for continuous objective assessment of near work
AssigneeUniversity of Houston System
InventorLisa Ostrin
Life of this patent
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Abstract
Systems and methods for continuous objective assessment are discussed herein. The systems and methods may comprise sensor(s), a processor, a clock, data storage, and a power source. The sensor(s) may continuously monitor viewing distances, light exposure, or the like, and the system may log corresponding time and/or duration information. Also provided herein are methods of treating, preventing, and/or diagnosing vision impairment risk. These systems and methods may provide warns, such as when detecting the viewing of materials too closely (e.g. ≤30 cm), near to near intermediate viewing (e.g. ≤70 cm) exceeding a predetermined time (e.g. ≥20 min.) without a break, and/or not getting enough outdoor light exposure (e.g. at least 75 minutes of exposure at >1000 lux) for the day.
Claims18
A system for objective assessment, the system comprising:
- a power source;
- a processor;
- a distance sensor coupled to the processor, wherein the distance sensor is positioned to continuously measure viewing distances;
- a clock providing time data that is associated with the viewing distances measured;
- and
- data storage recording the time data associated with the viewing distances measured and the viewing distances measured, wherein the processor utilizes the time data and the viewing distances measured to calculate diopter hours to diagnose vision impairment risk,
- wherein the diopter hours is calculated as [(3×hours of the time data associated with the viewing distances measured between 10 cm≤50 cm)+(2×hours of the time data associated with the viewing distances measured between 50 cm≤80 cm)+(1×hours of the time data associated with the viewing distances measured between 80 cm≤100 cm)].
A method for objective assessment, the method comprising:
- positioning a distance sensor to continuously measure viewing distances;
- capturing time data associated with the viewing distances measured;
- storing the time data and the viewing distances measured;
- and
- analyzing the viewing distance measurements and the time data associated with the viewing distances measured to calculate diopter hours to diagnose vision impairment risk,
- wherein diopter hours is calculated as [(3×hours of the time data associated with the viewing distances measured between 10 cm≤50 cm)+(2×hours of the time data associated with the viewing distances measured between 50 cm≤80 cm)+(1×hours of the time data associated with the viewing distances measured between 80 cm≤100 cm)].
Dependencies are inferred from the claim text.