Active lens adapted for correcting an abnormal refraction of an eye of a wearer

An ophthalmic lens intended to be worn in front of an eye of a wearer having a first optical function based on a prescription of the wearer for correcting an abnormal refraction of said eye of the wearer, the ophthalmic lens comprising:

• at least one activable optical element,
• wherein in a first state the at least one activable optical element contributes with the rest of the ophthalmic lens to focus an image of an object at distance on a retina, and in a second state the at least one activable optical element has a second optical function of not focusing an image on the retina of the eye of the wearer so as to slow down progression of the abnormal refraction of the eye,
• wherein the ophthalmic lens further comprises:
• a first substrate having a first index of refraction,
• a second substrate having said first index of refraction, the second substrate being arranged to face the first substrate and form a cavity between said first and second substrates,
• an ultrathin deformable membrane disposed between the first and second substrates and comprising at least one activable optical element,
• a first liquid disposed between the first substrate and the ultrathin deformable membrane, the first liquid having a first index of refraction,
• a second liquid disposed between the second substrate and the ultrathin deformable membrane, the second liquid having a second index of refraction different from the first index of refraction, and
• an activable pump disposed between the first and second substrates,
• wherein in a first state the at least one activable optical element has the same curvature of a front side of the ophthalmic lens, and
• wherein in a second state the activable pump modifies pressure of the second liquid to deform the ultrathin membrane and modify the curvature of the at least one activable optical element, thereby activating the second optical function of said activable optical element.

An ophthalmic lens intended to be worn in front of an eye of a wearer having a first optical function based on a prescription of the wearer for correcting an abnormal refraction of said eye of the wearer, the ophthalmic lens comprising:

• at least one activable optical element,
• wherein in a first state the at least one activable optical element contributes with the rest of the ophthalmic lens to focus an image of an object at distance on a retina, and in a second state the at least one activable optical element has a second optical function of not focusing an image on the retina of the eye of the wearer so as to slow down progression of the abnormal refraction of the eye,
• wherein the ophthalmic lens further comprises:
• a first substrate having a first index of refraction,
• a second substrate having said first index of refraction, the second substrate being arranged to face the first substrate and form a cavity between said first and second substrates,
• a first dielectric liquid disposed between the first and the second substrates, the first liquid having a first index of refraction,
• a second dielectric liquid, non-miscible with the first dielectric liquid, disposed between the first and the second substrates, the second liquid having a second refractive index of refraction different from a first refractive index and a dielectric constant lower than the dielectrics constant of the first liquid, and
• at least one conductive layer disposed on the surface of at least one of the first and second substrates facing the second dielectric liquid forming a droplet, the first dielectric forming a surrounding,
• wherein in a first state the at least one conductive layer generates an electric field that shapes the second dielectric liquid into a droplet having the same curvature as a front surface of a front side of the ophthalmic lens, and in a second state the at least one conductive layer creates an inhomogeneous electric field generating a dielectric force forcing the second dielectric liquid that shrinks towards a region having a weaker electric field to form the at least one activable optical element having a surfacic curvature that differs from the surfacic curvature of the ophthalmic lens.