Method for determining at least one parameter of an eye of a person

A non-transitory computer readable medium having stored thereon a program product having one or more stored sequences of instructions that are accessible to a processor and which, when executed by the processor, causes the processor to implement a method comprising:

• displaying at least two focused images on a retina of an eye of a person, the at least two images including a target and being carried by two light beams focused substantially in a plane of a pupil of the eye at at least two different positions;
• adapting a parameter of the target in each image based on feedback of the person relative to change of the parameter of the target in the image;
• and
• determining at least one optical parameter of the person's eye based on the adaption of the parameter of the target in each image, and
• wherein at least three images are displayed on the retina of the eye of the person, the at least three images including a target and being carried by three light beams focused substantially in a plane of the pupil of the eye at at least three different positions and three optical parameters based on the adaption of the parameter of the target in each focused content are determined.

A method for displaying a focused image on a retina of an eye of a person, the person having a prescription for the eye of the person, the method comprising:

• determining at least one optical parameter relative to the prescription for the eye of the person;
• providing a plurality of initial sub-images, each initial sub-image corresponding to at least a part of the image to be displayed;
• providing a plurality of light beams configured to be focused substantially in a plane of a pupil of the eye at a plurality of corresponding different positions, each light beam being configured to carry an associated sub-image;
• for each sub-image, adapting the sub-image based on at least one provided optical parameter and on the corresponding focused position of the light beam configured to carry the sub-image to form an adapted sub-image;
• and
• displaying each adapted sub-image carried by an associated light beam on the retina of the person,
• wherein the determining the at least one optical parameter relative to the prescription for the eye of the person further includes:
• displaying at least two focused images on a retina of the eye of the person, the at least two images including a target and being carried by two light beams focused substantially in a plane of a pupil of the eye at at least two different positions,
• adapting a parameter of the target in each image based on feedback of the person relative to the change of the parameter of the target in the image, and
• determining the at least one optical parameter of the person's eye based on the adaption of the parameter of the target in each image, and
• wherein at least three focused images are displayed on the retina of the eye of the person, the at least three images including a target and being carried by three light beams focused substantially in the plane of the pupil of the eye at at least three different positions and three optical parameters based on the adaption of the parameter of the target in each focused content are determined.