An adjustable goggle strap includes a strap body and an adjustment cord disposed on the strap body. The adjustment cord may be releasably engaged by a cord lock in order to modify a total length of the strap body. The cord lock may be located on the strap body or various elements of an attached eyewear, such as an eyewear frame, lens, or eyewear strap attachments. Some aspects of the adjustable goggle strap include a retainer to secure an excess portion of the adjustment cord.

A wearable accessory can include one or more retainer arms and a housing. The one or more retainer arms can couple to a wearable article. The housing can define an inner chamber that is sized for receiving component that is coupled to the one or more retainer arms. The housing can move between a closed position and an open position. The housing can protect the component from the environment external to the chamber in the closed position and reveal the component to the environment external to the chamber in the open position.

An eyewear clipping device to fasten the eyewear to the sides of a cap that comprises a first vertical member forming an exterior slot for receiving an earpiece of an eyewear with a first top end and a first bottom end. A second vertical member forms an interior three-sectioned clip with a second top end and a bottom end comprising a central ascending vertical section that forks at the top second end to form two retention wings that extend back downward toward the bottom end that insert behind a hat band of a cap and together with the central ascending vertical section, which is positioned in front of the hat band, create an opposed gripping force on the hat band. The first bottom end and the second bottom end connect together using a U-shaped curve or straight bridge.

A contact lens incorporating one or more compliant dynamic translation zones fabricated from a material that is readily deformable under eyelid pressure during blinking and which allows for the control over translation of the contact lens on the eye. The one or more compliant dynamic translation zones provide for the comfortable relative movement of the contact lens over the eye.

The invention is directed to a method for determining an eyeglass prescription for an eye, in particular through the use of a non-transitory computer readable medium. The method includes the steps of providing a measurement indicative of the refractive properties of the eye; establishing an optimization space corresponding to a plurality of possible eyeglass prescriptions for the eye; determining a merit function, wherein a value of the merit function corresponds to a visual function of the eye when corrected using one of the plurality of possible eyeglass prescriptions within the optimization space, wherein the merit function includes a term depending on a magnitude of a corrective astigmatism of the one of the plurality of possible eyeglass prescriptions and causing a less optimal value of the merit function the higher the magnitude of the corrective astigmatism and/or the higher the magnitude of a difference between the corrective astigmatism and a subjective corrective astigmatism; and determining the eyeglass prescription by optimizing the value of the merit function. The invention is further directed to a system for determining an eyeglass prescription and a corresponding computer program product.

Implementations of a counterweight device for eyeglasses are provided. In some implementations, a counterweight device may be secured to the backend of each temple and thereby remove some to all weight of the eyeglasses from the nose and/or cheeks of the wearer. In some implementations, a pair of counterweight devices may be used to counterbalance the weight of a pair of eyeglasses. In some implementations, a counterweight device may comprise an elastic loop attached to a weight by a connector. In some implementations, a counterweight device may include fasteners configured to removably secure a weight to an elastic loop or to another weight dangling from an elastic loop. In this way, through the use of threaded fasteners, the overall weight and/or look of a counterweight device may be changed by the wearer. In some implementations, a lanyard may be used in conjunction with a pair of counterweight devices.

An optical element has a substrate body made from transparent plastic and a coating having multiple layers. The coating includes a hard lacquer layer adjoining the substrate. The coating has a diffusivity ensuring the absorption of water molecules passing through the coating in the substrate and the release of water molecules from the substrate through the coating from an air atmosphere on that side of the coating facing away from the substrate with a flow density which, proceeding from the equilibrium state of the quantity of water molecules absorbed in the substrate in an air atmosphere at 23° C. and 50% relative humidity, brings the setting of the equilibrium state of the quantity of water molecules absorbed in the substrate in an air atmosphere at 40° C. and 95% relative humidity within an interval not more than 10 h longer than for setting this equilibrium under corresponding conditions with an identical uncoated substrate.

The eye glasses holding clip is a device for the storage of eye glasses. The device is adapted to be attached to, and worn with, eye glasses. When the eye glasses are removed, the eye glasses holding clip allows the user to attach, carry, and store the eye glasses on an article of clothing or other object. The eye glasses holding clip comprises a rectangular tube, a hinge, and a clip.

The eye glasses holding clip is a device for the storage of eye glasses. The device is adapted to be attached to, and worn with, eye glasses. When the eye glasses are removed, the eye glasses holding clip allows the user to attach, carry, and store the eye glasses on an article of clothing or other object. The eye glasses holding clip comprises a rectangular tube, a hinge, and a clip.

A digital loupe system is provided which can include a number of features. In one embodiment, the digital loupe system can include a stereo camera pair and a distance sensor. The system can further include a processor configured to perform a transformation to image signals from the stereo camera pair based on a distance measurement from the distance sensor and from camera calibration information. In some examples, the system can use the depth information and the calibration information to correct for parallax between the cameras to provide a multi-channel image. Ergonomic head mounting systems are also provided. In some implementations, the head mounting systems can be configurable to support the weight of a digital loupe system, including placing one or two oculars in a line of sight with an eye of a user, while improving overall ergonomics, including peripheral vision, comfort, stability, and adjustability. Methods of use are also provided.