Device for selecting contact lens within a cabinet arranged to receive a plurality of contact lens and method associated thereof

A device for selecting contact lenses within a cabinet arranged to receive a plurality of contact lenses, the device comprising:

• means for storing data based on measurements from an auto refractometer;
• and
• data processor means associated with a calculation module for identifying a contact lens on the basis firstly of data from the auto refractometer as previously stored in the storage means, and secondly of additional data relating to the contact lens that is to be identified and that was previously input by the user, said data processor means associated with said calculation module also being arranged to identify the location of the lens within the cabinet, wherein the data processor means associated with the calculation module are also arranged to determine the characteristics of a new lens from the characteristics of a previously identified lens and from additional data measured by the user on a patient wearing said previously identified lens, the additional data comprising at least a measurement of over refraction, said data processor means associated with said calculation module also being arranged to identify the location of this new lens within the cabinet, and wherein, when the previously identified lens is a tonic lens, the data processor means associated with the calculation module are arranged to determine the sphere, the cylinder, and the axis of the new lens from the characteristics of the previously identified lens and from measurements of over refraction and of rotation performed by the user on the patient wearing said previously identified lens.

A device for selecting contact lenses within a cabinet arranged to receive a plurality of contact lenses, the device comprising:

• means for storing data based on measurements from an auto refractometer;
• and
• data processor means associated with a calculation module for identifying a contact lens on the basis firstly of data from the auto refractometer as previously stored in the storage means, and secondly of additional data relating to the contact lens that is to be identified and that was previously input by the user, said data processor means associated with said calculation module also being arranged to identify the location of the lens within the cabinet, wherein the data processor means associated with the calculation module are also arranged to determine the characteristics of a new lens from the characteristics of a previously identified lens and from additional data measured by the user on a patient wearing said previously identified lens, the additional data comprising at least a measurement of over refraction, said data processor means associated with said calculation module also being arranged to identify the location of this new lens within the cabinet, and wherein, when the previously identified lens is a progressive lens, the data processor means associated with the calculation module are arranged to determine the sphere and/or the addition of the new lens from the characteristics of the previously identified lens, in particular its addition, from the age of the patient, and from over refraction, duochrome, and near and far vision visual acuity measurements, and from a determination of the dominant or fellow eye of the patient performed by the user on the patient wearing the previously identified lens.

A method of selecting contact lenses within a cabinet, the method comprising the following steps:

• a) storing data based on measurements from an auto refractometer;
• b) inputting additional data relating to the contact lens, other than the data provided by the auto refractometer, namely data relating to the shape of the lens, to the nature of the material forming the lens, and to the frequency with which the lens is to be worn;
• c) determining the characteristics of a contact lens available from the supplier on the basis firstly of measurement data from the auto refractometer that has previously been stored, and secondly from additional data previously input by the user in step b);
• d) identifying the location of the contact lens within the cabinet;
• and
• e) extracting the box including the contact lens from the cabinet.