Joint determination of accommodation and vergence

A computer program comprising executable instructions for carrying out a method for jointly determining accommodation and vergence of at least one eye of a user, the method comprising the following steps:

• a) presenting at least one symbol at at least one first distance in front of at least one eye of a user for stimulating the accommodation of the at least one eye;
• b) capturing at least one eye movement of the at least one eye;
• and
• c) determining a refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• d) jointly determining the accommodation and the vergence of the at least one eye by:
• determining a change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at at least one second distance;
• and
• determining the vergence of the at least one eye from the at least one eye movement of the at least one eye with the accommodation of the at least one eye at the at least one first distance,
• wherein the refraction of the at least one eye is determined by capturing the at least one eye movement of the at least one eye based on the at least one symbol while a parameter of the at least one symbol is altered, wherein a point in time is determined at which a recognition threshold of the user for the at least one symbol emerges from the at least one eye movement, wherein the refraction of the at least one eye is determined from the parameter for the at least one symbol defined at the point in time.

A computer-readable non-transitory storage medium comprising instructions that, upon execution by a computer, cause the latter to carry out the steps of a method for producing a spectacle lens for at least one eye of a user, wherein the spectacle lens is produced by processing a lens blank or a semi-finished spectacle lens product, wherein the lens blank or the semi-finished spectacle lens product is processed based on refraction data, wherein the refraction data take into account values for an accommodation and a vergence of at least one eye of the user, wherein a method for jointly determining the accommodation and the vergence of the eye of the user is used, the method for producing the spectacle lens comprising the following steps:

• a) presenting at least one symbol at at least one first distance in front of at least one eye of a user for stimulating the accommodation of the at least one eye;
• b) capturing at least one eye movement of the at least one eye;
• and
• c) determining a refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• d) jointly determining the accommodation and the vergence of the at least one eye by:
• determining a change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at at least one second distance;
• and
• determining the vergence of the at least one eye from the at least one eye movement of the at least one eye with the accommodation of the at least one eye at the at least one first distance,
• wherein the refraction of the at least one eye is determined by capturing the at least one eye movement of the at least one eye on the basis of the at least one symbol while a parameter of the at least one symbol is altered, wherein a point in time is determined at which a recognition threshold of the user for the at least one symbol emerges from the at least one eye movement, wherein the refraction of the at least one eye is determined from the parameter for the at least one symbol defined at the point in time.

An apparatus for jointly determining accommodation and vergence of at least one eye of a user, the apparatus comprising:

• a device configured to present at least one symbol at at least one first distance in front of at least one eye of a user for stimulating the accommodation of the at least one eye;
• an eye movement measuring device configured to capture at least one eye movement of the at least one eye;
• and
• an evaluation unit configured to jointly determine the accommodation, from the change in the refraction, and the vergence, from the eye movement, by:
• determining a change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at at least one second distance;
• and
• determining the vergence of the at least one eye from the at least one eye movement of the at least one eye with the accommodation of the at least one eye at the at least one first distance,
• wherein the evaluation unit is further configured to carry out the ascertainment of the refraction of the at least one eye by capturing the at least one eye movement of the at least one eye based on the at least one symbol while a parameter of the at least one symbol is altered, wherein a point in time is determined at which a recognition threshold of the user for the at least one symbol emerges from the at least one eye movement, and wherein the refraction of the at least one eye is determined from the parameter for the at least one symbol defined at the point in time.

A data processing apparatus, comprising:

• a) means for presenting at least one symbol at at least one first distance in front of at least one eye of a user for stimulating the accommodation of the at least one eye;
• b) means for capturing at least one eye movement of the at least one eye;
• and
• c) means for determining a refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• and
• d) jointly determining the accommodation and the vergence of the at least one eye by:
• determining a change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at at least one second distance;
• and
• determining the vergence of the at least one eye from the at least one eye movement of the at least one eye with the accommodation of the at least one eye at the at least one first distance,
• wherein the refraction of the at least one eye is determined by capturing the at least one eye movement of the at least one eye based on the at least one symbol while a parameter of the at least one symbol is altered, wherein a point in time is determined at which a recognition threshold of the user for the at least one symbol emerges from the at least one eye movement, and wherein the refraction of the at least one eye is determined from the parameter for the at least one symbol defined at this point in time.

A computer program comprising instructions that, upon execution of the program by a computer, cause the latter to carry out a method comprising the following steps:

• a) presenting at least one symbol at at least one first distance in front of at least one eye of a user for stimulating the accommodation of the at least one eye;
• b) capturing at least one eye movement of the at least one eye;
• c) determining a refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• d) jointly determining the accommodation and the vergence of the at least one eye by:
• determining a change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at at least one second distance;
• determining the vergence of the at least one eye from the at least one eye movement of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• and
• e) determining a change of myopia of the at least one eye of the user from a ratio of the vergence of the at least one eye to the change in the accommodation from the change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at the at least one second distance.

A computer program comprising instructions that, upon execution of the program by a computer, cause the latter to carry out a method for determining values for a control of myopia of at least one eye of a user with a method for jointly determining accommodation and vergence of at least one eye of a user, the method comprising the following steps:

• a) presenting at least one symbol at at least one first distance in front of at least one eye of a user for stimulating the accommodation of the at least one eye;
• b) capturing at least one eye movement of the at least one eye;
• c) determining a refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• d) jointly determining the accommodation and the vergence of the at least one eye by:
• determining a change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at at least one second distance;
• determining the vergence of the at least one eye from the at least one eye movement of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• and
• e) determining a change of myopia of the at least one eye of the user from a ratio of the vergence of the at least one eye to the change in the accommodation from the change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at the at least one second distance,
• wherein the jointly determined accommodation and vergence of the at least one eye of the user are used as the values for the control of myopia.

An apparatus for data processing, comprising a processor configured to execute a method for jointly determining an accommodation and a vergence, the method comprising the following steps:

• a) presenting at least one symbol at at least one first distance in front of at least one eye of a user for stimulating the accommodation of the at least one eye;
• b) capturing at least one eye movement of the at least one eye;
• c) determining a refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• d) jointly determining the accommodation and the vergence of the at least one eye by
• determining a change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at the at least one second distance;
• determining the vergence of the at least one eye from the at least one eye movement of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• and
• e) determining a change of myopia of the at least one eye of the user from a ratio of the vergence of the at least one eye to the change in the accommodation from the change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at the at least one second distance.

An apparatus for data processing, comprising:

• a processor configured to execute a method for determining values for a control of myopia of at least one eye of a user with a method for jointly determining accommodation and vergence of at least one eye of the user, the method comprising the following steps:
• a) presenting at least one symbol at at least one first distance in front of at least one eye of a user for stimulating the accommodation of the at least one eye;
• b) capturing at least one eye movement of the at least one eye;
• c) determining a refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• d) jointly determining the accommodation and the vergence of the at least one eye by:
• determining a change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at at least one second distance;
• determining the vergence of the at least one eye from the at least one eye movement of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• and
• e) determining a change of myopia of the at least one eye of the user from a ratio of the vergence of the at least one eye to the change in the accommodation from the change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at the at least one second distance,
• wherein the jointly determined accommodation and vergence of the at least one eye of the user are used as the values for the control of myopia.

A computer-readable non-transitory storage medium comprising instructions that, upon execution by a computer, cause the latter to carry out a method comprising the following steps:

• a) presenting at least one symbol at at least one first distance in front of at least one eye of a user for stimulating the accommodation of the at least one eye;
• b) capturing at least one eye movement of the at least one eye;
• and
• c) determining a refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• d) jointly determining the accommodation and the vergence of the at least one eye by:
• determining a change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at at least one second distance;
• determining the vergence of the at least one eye from the at least one eye movement of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• and
• e) determining a change of myopia of the at least one eye of the user from a ratio of the vergence of the at least one eye to the change in the accommodation from the change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at the at least one second distance.

A computer-readable non-transitory storage medium comprising instructions that, upon execution by a computer, cause the latter to carry out a computer-implemented method for determining values for a control of myopia of at least one eye of a user by a joint determination of accommodation and vergence of at least one eye of the user, the method comprising the following steps:

• a) presenting at least one symbol at at least one first distance in front of at least one eye of a user for stimulating the accommodation of the at least one eye;
• b) capturing at least one eye movement of the at least one eye;
• and
• c) determining a refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• d) jointly determining the accommodation and the vergence of the at least one eye by:
• determining a change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at at least one second distance;
• determining the vergence of the at least one eye from the at least one eye movement of the at least one eye with the accommodation of the at least one eye at the at least one first distance;
• and
• e) determining a change of myopia of the at least one eye of the user from a ratio of the vergence of the at least one eye to the change in the accommodation from the change in the refraction of the at least one eye with the accommodation of the at least one eye at the at least one first distance in relation to the accommodation of the at least one eye at the at least one second distance,
• wherein the jointly determined accommodation and vergence of the at least one eye of the user are used as the values for the control of myopia.