Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 20, 2010
Patent Application Number
11734701
Date Filed
April 12, 2007
Patent Citations Received
0
Patent Primary Examiner
Patent abstract
A scleral lens has an optical zone, a peripheral zone and a sagittal depth control zone between the optical zone and the peripheral zone. The sagittal depth control zone may be configured to raise the optical zone above the level of a person's eye when the scleral lens is in use and create a tear layer between the optical zone and the person's eye. Tear flow control features are provided in the sagittal depth control zone.
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