IMPROVEMENTS IN OR RELATING TO A VISUAL GUIDE

Abstract

A visual guide for assisting a user with the positioning of an object relative to the user’s eye is provided. The visual guide comprises: a first positioning indicator provided on an axis; and a second positioning indicator, visually distinct from the first. The first and second positioning indicators are offset along the axis. Furthermore, visual contact of the first and second positioning indicators occurs when the object is located within a predetermined locus of the user’s eye.

Description

Claims

1-16. (canceled)

17. A visual guide for assisting a user with the positioning of an object relative to the user’s eye, the visual guide comprising: a first positioning indicator provided on an axis; anda second positioning indicator, visually distinct from the first,wherein the first and second positioning indicators are offset along the axis andwherein visual contact of the first and second positioning indicators occurs when the object is located within a predetermined range of distances from the user’s eye and when the object is positioned within a predetermined range of angles relative to the visual axis of the user’s eye.

18. The visual guide according to claim 17, wherein visual contact of substantially all of the first indicator with at least a portion of the second positioning indicator occurs when the object is located within a predetermined range of distances from the eye and when the object is positioned within a predetermined range of angles relative to the visual axis of the user’s eye.

19. The visual guide according to claim 17, wherein the first and second positioning indicators are coaxial.

20. The visual guide according to claim 17, wherein at least one of the length, circumference, diameter and cross-sectional area of the first positioning indicator is less than the corresponding measurement of the second positioning indicator.

21. The visual guide according to claim 17, wherein the first positioning indicator can fit substantially within an external boundary of the second positioning indicator when viewed in two-dimensions (2D).

22. The visual guide according to claim 17, wherein the first positioning indicator is a different and/or contrasting colour to the second positioning indicator.

23. The visual guide according to claim 17, wherein at least one of the first and second positioning indicators is configured for attachment to the object.

24. The visual guide according to claim 17, wherein the first and/or second positioning indicator comprises a plurality of discrete elements.

25. The visual guide according to claim 24, wherein at least one of the length, circumference, diameter and cross-sectional area of at least one element of the first positioning indicator is less than the corresponding measurement of the second positioning indicator.

26. The visual guide according to claim 17, wherein at least one of the first and second positioning indicators, or at least one element thereof, is at least one of: i. An outer surface or boundary of a ring or disc;ii. A continuous line or marking on a ring or disc;iii. A plurality of discrete markings on a ring or disc;iv. An outer surface of at least three protrusions or outcrops;v. A continuous marking or scale on at least three protrusions or outcrops.

27. The visual guide according to claim 17, wherein at least one of the first and second positioning indicators is integral to the object.

28. The visual guide according to claim 17, wherein at least one of the first and second positioning indicators, or at least one element thereof, is at least one of: i. A boundary or edge between a first and second surface of the object;ii. A visual boundary wherein a continuous surface of the object disappears from vision;iii. A continuous marking or plurality of discrete markings on the surface or label of the object.

29. The visual guide according to claim 17, wherein the object is an imaging device.

30. A visual guide for assisting a user with the positioning of an ophthalmic fluid dispenser relative to the user’s eye, the visual guide comprising: a first positioning indicator provided on an axis; anda second positioning indicator, visually distinct from the first,wherein the first and second positioning indicators are offset along the axis andwherein visual contact of the first and second positioning indicators occurs when the dispenser is located within a predetermined range of distances from the user’s eye and when the dispenser is positioned within a predetermined range of angles relative to the visual axis of the user’s eye.

31. The visual guide according to claim 30, wherein the second positioning indicator becomes less visible as the guide is moved proximal to the eye.

32. The visual guide according to claim 30, further comprising a third positioning indicator.