System and method for demonstrating an optical disorder

Patent metadata

Field	Value
Publication number	US-11810468-B2
Application number	US-202016745908-A
Country	US
Kind code	B2
Filing date	Jan 17, 2020
Priority date	Jan 21, 2019
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

A method for demonstrating an optical disorder includes providing two ophthalmic lenses in a first position relative to each other. Each lens includes a first vision zone and a second vision zone. The first vision zone includes a distance vision zone having a distance vision reference point and a power of between about −1.00 Diopters and −4.00 Diopters. The second vision zone includes a near vision zone having a near vision reference point and a power of between about +1.00 Diopters and about +4.00 Diopters. Each lens includes an Add power of between +2.00 Diopters and +3.25 Diopters; the ophthalmic lenses are repositioned to a second position relative to each other, so the distance vision zone of each lens is viewable by a wearer through the near vision zone and the near vision zone of each lens is viewable by a wearer through the distance vision zone.

First claim

The invention claimed is:

1. A method for demonstrating an optical disorder, wherein the method comprises:
a) providing two ophthalmic lenses in a first position relative to each other, wherein each lens comprises a first vision zone and a second vision zone, wherein the first vision zone comprises a distance vision zone having a distance vision reference point and a power of between about −1.00 Diopters and about −4.00 Diopters, and the second vision zone comprises a near vision zone having a near vision reference point and a power of between about +1.00 Diopters and about +4.00 Diopters, and wherein each lens comprises an Add power of between about +2.00 Diopters and about +3.25 Diopters and having the wearer view through the two ophthalmic lenses;
b) re-positioning the ophthalmic lenses to a second position relative to each other, such that the distance vision zone of each lens is viewable by a wearer through the near vision location of the near vision zone as set forth in step a) and the near vision zone of each lens is viewable by a wearer through the distance vision location of the distance vision zone as set forth in step a); and
c) providing the ophthalmic lenses to the wearer and having the wearer view through the two ophthalmic lenses as re-positioned to thereby compare the two viewings and demonstrate an optical disorder.

2. The method of claim 1 , wherein the method of providing further comprises providing progressive lenses.

3. The method of claim 1 , wherein the method further comprises positioning the near vision reference point such that an angle between the near vision reference point and the distance vision reference point with respect to a center dot of each lens is between about 100 degrees and 125 degrees.

4. The method of claim 1 , wherein the method further comprises providing the ophthalmic lenses to a non-presbyope wearer.

5. The method of claim 4 , wherein the method further comprises demonstrating presbyopia to the non-presbyope wearer.

6. The method of claim 5 , wherein the method further comprises measuring a facial reaction of the non-presbyope wearer in response to the distance vision zone of each lens being viewable by the wearer through the near vision location of the near vision zone as set forth in step a) and the near vision zone of each lens being viewable by the wearer through the distance vision location of the distance vision zone as set forth in step a).

Assignees

• Essilor Int

Inventors

• Keita Gabriel
• Guerra John

Classifications

• G09B19/00 Primary

  Teaching not covered by other main groups of this subclass (teaching or practice apparatus for gun-aiming or gun-laying F41G3/26) · CPC title

• G02C7/027

  considering wearer's parameters · CPC title

• G02C7/063

  Shape of the progressive surface · CPC title

• G02C7/066 Primary

  Shape, location or size of the viewing zones · CPC title

• G02C7/06 Primary

  bifocal; multifocal {; progressive (G02C7/041 takes precedence)} · CPC title