Contact lens for oriented optical corrections
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United States of America Patent
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-
Aug 22, 1989
Issued Date -
N/A
app pub date -
Aug 28, 1987
filing date -
Jun 12, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The contact lens comprises a central optical zone and a peripheral zone for fastening the lens. For centering said lens the peripheral zone comprises two stabilizing bosses which are disposed on the horizontal stabilization axis of the lens. For large palpebral openings it may be preferable to use two pairs of bosses, whereby each pair comprises two bosses, disposed symmetrically to said axis of stabilization. For multifocal corrections it is possible to use a third boss, disposed on the vertical axis of the lens. These stabilizers allow a perfect centering of the lens, hindering its rotation and the use of very thin lenses.
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