Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1984-05-30
1987-03-24
Corbin, John K.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
351160H, G02C 704
Patent
active
046520996
ABSTRACT:
A scleral ring of hydrophilic material 0.05 to 0.35 millimeters thick is provided with a circular shape about 16 to 25 millimeters in diameter, or a generally elliptical shape approximately 24 to 30 millimeters long and approximately 12 to 18 millimeters in width, also a central portion of about 9 to 15 millimeters in diameter. There is also a peripheral portion disposed about said central portion colored white, whereby the exposed portion of the wearer's sclera is cosmetically treated. The central portion may have an optical center about 5 millimeters in diameter, preferably of optical quality for the correction of vision or clear or removed.
REFERENCES:
patent: 3679504 (1972-07-01), Wichterle
patent: 4157864 (1979-06-01), Koller et al.
Hoffmannbeck, W.; "Painted Plastic Contact Lenses"; Contacto; vol. 10, No. 4, Dec. 1966, pp. 15-19.
Corbin John K.
Sugarman Scott J.
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