Progressive power ophthalmic lens
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United States of America Patent
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-
Mar 8, 1988
Grant Date -
N/A
app pub date -
Mar 2, 1982
filing date -
Jun 19, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved ophthalmic lens for presbyopia is disclosed in which the refractive power is progressively changed to provide a natural visual target arrangement. In the opthalmic lens, rotation of the head of a wearer for binocular lateral vision is taken into account to permit comfortable binocular lateral vision closer to vision with the naked eyes.
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