Patent US5056909A successfully refreshed from Google Patents.
US5056909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact lens for compensating eye dominance crossover
Assignee: Individual
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Filing: 1990-10-17
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Granted: 1991-10-15
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Expires: 2010-10-17
Abstract
Abstract A contact lens has a central circular region treated to make it translucent. The diameter of the translucent region is at least great enough to cover the pupil of the eye. Light passes through the central region of the lens but the image normally seen is blurred sufficiently so that it cannot be visualized. The lens is deposited on the pupil of the eye which is normally dominant for those who have eye dominance crossover such that where critical viewing along the sights of a gun or optical instrument, for example, must be performed by the other eye, visual dominance is transferred to said other eye.
Inventors
- 👤 Hugh L. Brown
- 👤 Richard J. Stepniewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:41
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/10; G02C7/104; G02C7/02; G02C7/024; G02C7/027; G02C7/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
122 words
A method for compensating non-dominant eye crossover and for improving the accuracy of visualizing and aiming at an object or the image of an object sighted by a non-dominant eye and for facilitating keeping the other dominant eye open simultaneously to preserve peripheral vision and depth perception, comprising: before undertaking to sight said object or image with said non-dominant eye, applying to said other dominant eye a contact lens having a circular optically diffusing translucent central region whose diameter is sufficient to cover the pupil of the eye and having a transparent annular region surrounding said central region, and positioning said translucent central region of the contact lens to completely cover the pupil and totally nullify visual acuity of said dominant eye.
Claim 2
Independent Claim
122 words
A method for compensating non-dominant eye crossover and for improving the accuracy of visualizing and aiming at an object or the image of an object sighted by a non-dominant eye and for facilitating keeping the other dominant eye open simultaneously to preserve peripheral vision and depth perception, comprising: before undertaking to sight said object or image with said non-dominant eye, applying to said other dominant eye a contact lens having a circular optically diffusing translucent central region whose diameter is sufficient to cover the pupil of the eye and having a transparent annular region surrounding said central region, and positioning said translucent central region of the contact lens to completely cover the pupil and totally nullify visual acuity of said dominant eye.
Claim 3
Dependent Claim
33 words
The method according to claim 1 including selecting for applying to said dominant eye a said contact lens whose circular optically diffusing translucent central region has an outside diameter of substantially 7.5 mm.
Claim 4
Dependent Claim
52 words
The method according to claim 1 including selecting for applying to said dominant eye a said contact lens whose circular optically diffusing translucent central region has an outside diameter of substantially 7.5 mm and said transparent annular region of said lens surrounding said central region has a diameter of substantially 11 mm.
References Cited (Backward Citations)
DD62926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-10-14 | 1995-04-15 | 1995-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-14 | 1999-04-15 | 1999-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-14 | 2003-04-15 | 2003-10-15 | $7700.00 | Window Closed / Lapsed |