Method and apparatus for correcting vision using an electro-active phoropter
First Claim
1. A phoropter for determining a vision prescription comprising:
- individually addressable electro-active lenses in series;
a housing to support the series of electro-active lenses; and
a power source connected to each of the electro-active lenses to apply an electric potential across each electro-active lens and create a positive, negative, or neutral optical power in each electro-active lens.
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Accused Products
Abstract
An electro-active phoropter and a method of using the electro-active phoropter to measure a patient'"'"'s vision prescription is disclosed. The electro-active phoropter includes a series of individually addressable electro-active lenses. The lenses have either a positive or negative optical power when an electrical potential is applied across the lens and a neutral optical power when no electrical potential is applied across the lens. Each lens provides an optical power that is part of a net optical power of the series of lenses when a patient views through the phoropter. The optical power of the phoropter can be incrementally adjusted by changing the distribution of the electrical potential across the different lenses of the series to provide increasing or decreasing optical power until a patient achieves a desired level of clarity and a vision prescription has been determined.
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Citations
40 Claims
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1. A phoropter for determining a vision prescription comprising:
- individually addressable electro-active lenses in series;
a housing to support the series of electro-active lenses; and
a power source connected to each of the electro-active lenses to apply an electric potential across each electro-active lens and create a positive, negative, or neutral optical power in each electro-active lens. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 40)
- individually addressable electro-active lenses in series;
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26. A method for determining a vision prescription using an electro-active phoropter comprising individually addressable electro-active lenses in series and a power source connected to each of the electro-active lenses to individually create one of a positive, negative, or neutral optical power in each electro-active lens comprising:
- providing electrical power to at least one electro-active lens to produce a net optical power in the series of electro-active lenses other than 0 diopter;
individually varying the electrical power to each of the electro-active lenses to create an incremental change of net optical power to a patient'"'"'s eyes until a desired level of vision correction is achieved; and
recording the vision prescription that corresponds to the net optical power at the desired level vision correction. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
- providing electrical power to at least one electro-active lens to produce a net optical power in the series of electro-active lenses other than 0 diopter;
Specification