Ocular focus assessment and monitoring for myopia and other vision disorders
OwnerJames W. O'Neil, Richard S. Tirendiinventors
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Abstract
A system and method for home testing of patient focal length, and detecting for the presence or changes in myopic conditions utilizing a multi-colored testing screen. Utilizing the varied refractive properties of each wavelength of light (colors), changes in myopia and focal length can be monitored in each of the separate colors. Baseline visual acuity is determined, and the testing occurs with relevant-sized optotypes. Optotypes are displayed in red, white, and green, simultaneously on a display screen set at four meters distance. Games and acuity tests are conducted to determine the focal acuity at each of the wavelengths. Results are recorded and used for future diagnosis and treatment.
Claims23
A system for testing focal length of a patient's eye(s) via systematic testing of visual acuity or focal point via a testing screen displaying one or more optotypes, said system comprising:
- a. a screen displaying a test, said screen set at a known or monitored distance from a patient;
- b. a first optotype displayed on said screen, said first optotype displayed in white;
- c. at least a second optotype of a first spectral color displayed on the screen flanking the first optotype;
- d. an at least third optotype concurrently displayed on the screen with the first and at least second optotype, the at least third optotype of a second spectral color, wavelengths of said first and second spectral colors differing by at least twenty nanometers;
- and
- e. a recording device adapted to receive patient input regarding distance between the subject and the device and/or the identification of the first and at least second optotype.
A method for monitoring the focal length of a patient's eye, said method comprising the steps of:
- a. setting a screen at a known or monitored distance from a patient;
- b. initially testing a white optotype and at least one specific spectral color optotype individually;
- c. after said step of initially testing simultaneously displaying at least two optotypes, including a first optotype in with light of a known refractive property, and a second optotype in a specific spectral color, on the screen;
- d. recording patient identification of at least one of the at least two optotypes or distance.
A method for monitoring the focal length of a patient's eye, said method comprising the steps of:
- a. establishing an initial visual acuity, focal point, or perceived clarity of one eye of the patient via display of a screen at a known effective distance from a user at a first time, wherein said step of establishing comprises simultaneously displaying two or more color optotypes to the one eye, and recording an initial visual acuity, focal point, or perceived clarity for each of the at least two colors presented;
- b. retesting visual acuity, focal point, or perceived clarity of the one eye via display of a screen at a set distance from a user at a second time, wherein said step of retesting comprises simultaneously displaying two or more color optotypes to the one eye, and recording a later visual acuity, focal point, or perceived clarity for each of the at least two colors presented;
- c. evaluating for changes in focusing of the one eye over time by comparing visual acuity, focal point, or perceived clarity of two or more different color optotypes simultaneously displayed from said step of establishing and said step of retesting.
Dependencies are inferred from the claim text.