The invention relates to spectacles, systems and methods for visibility enhancement, including by glare suppression. The spectacles, systems and methods for visibility enhancement includes spectacles and a spectacle lens having a liquid crystal cell (LC), the transmission (TR) of which may be varied by a suitable control and the liquid crystal cell (LC) designed so that the transmission (TR) of the liquid crystal cell (LC) may be switched between high and low transmission states. The liquid crystal cell (LC) includes a control for regulating the times of the state of high transmission (T.sub.on) of the liquid crystal cell (LC) such that the temporal position of the times of the high transmission state (T.sub.on) within a period of times of the high transmission state (T.sub.on) and times of the low transmission state (T.sub.off) may be altered continuously or discontinuously; and/or the duration of a period of times of the high transmission state (T.sub.on) and times of the low transmission state (T.sub.off) may be altered continuously or discontinuously. Such changes may be determined by a secret coding key.

Eyewear is provided that has one or more lenses and a shield, the shield comprising a material that resists the passage of solids and liquids there through, and the shield is formed with one or more adjustable sections that allow one or more vents to be formed in said shield.

Described is a protective device for the face of a user, in particular for the eyes of a user, including a transparent visor designed to allow the user to see through the protective device and a supporting frame designed to allow the fixing of the protective device to the face of a user. The protective device has at least one opening designed to allow a passage of air from the inside to the outside and vice versa of an operating space defined, in use, by the protective device and by the face of the user. The protective device comprises a filtering device configured for filtering the air passing through said opening.

An ostomy pouching system is described. A baseplate includes a seal adapted to be securely placed on the skin about the perimeter of tissue defining a stoma incised into a patient. An ostomy reservoir forms a sealed space within which discharge can be received and held. A flex layer includes a seal that is airtight, watertight, or both, and which is structurally interposed between at least a portion of two or more of the skin, tissue, stoma, baseplate, and ostomy reservoir. The flex layer includes a resiliently and elastically malleable phase change material. The flex layer is deformable such that at least one portion of the flex layer can transmute the magnitude of a force applied to the flex layer and redirect the force. External forces acting upon at least one of the skin, tissue, stoma, baseplate, and ostomy reservoir are mitigated, transmuted, and isolated by the flex layer.

An ostomy pouching system is described. A baseplate includes a seal adapted to be securely placed on the skin about the perimeter of tissue defining a stoma incised into a patient. An ostomy reservoir forms a sealed space within which discharge can be received and held. A flex layer includes a seal that is airtight, watertight, or both, and which is structurally interposed between at least a portion of two or more of the skin, tissue, stoma, baseplate, and ostomy reservoir. The flex layer includes a resiliently and elastically malleable phase change material. The flex layer is deformable such that at least one portion of the flex layer can transmute the magnitude of a force applied to the flex layer and redirect the force. External forces acting upon at least one of the skin, tissue, stoma, baseplate, and ostomy reservoir are mitigated, transmuted, and isolated by the flex layer.

A mud visor formed by a substantially transparent sheet is attached to a goggle lens. The mud visor may be attached to the goggle lens using a substantially transparent adhesive or adhesive tape. Thus, the mud visor may provide clear and improved field of view for the user. Further, the mud visor may be configured to cover and guide a top portion of a roll-off film as the roll-off film is conveyed across the goggle lens. A top portion of the mud visor may be inserted into the lens groove of a goggle frame along with the goggle lens when the goggle lens is attached to the goggle frame. The mud visor also may stretch across the goggle lens and overlap with film canisters at both sides to provide a seamless coverage to prevent mud from entering behind the mud visor or the roll-off film.

A mud shield configured to attach to a goggle frame or an adaptor to a goggle frame is disclosed. The mud shield may include a shield body configured to be disposed over at least a portion of a goggle. The mud shield may be configured such that mud, water, or other debris may roll off of the mud shield over the front of the film, preventing the mud, water, or other debris from being smeared between a goggle lens and a film disposed on the goggle lens.

A face mask comprising a front part (1) and a back part (4), wherein the back part (4) is beak-shaped and the front part (1) is installed to match the outline of the back part (4) and a bracket (3), that forms a pliable rigid arc starting at jaw level on one cheek in front of or over the nose, is installed to form an arc leading to the other side of the jaw, the front part (1) is applied slightly stretched over the outline of the bracket (3), and a filter is enclosed between the front part and the bracket.

The invention relates to spectacles, systems and methods for visibility enhancement, including by glare suppression. The spectacles, systems and methods for visibility enhancement includes spectacles and a spectacle lens having a liquid crystal cell (LC), the transmission (TR) of which may be varied by a suitable control and the liquid crystal cell (LC) designed so that the transmission (TR) of the liquid crystal cell (LC) may be switched between high and low transmission states. The liquid crystal cell (LC) includes a control for regulating the times of the state of high transmission (T.sub.on) of the liquid crystal cell (LC) such that the temporal position of the times of the high transmission state (T.sub.on) within a period of times of the high transmission state (T.sub.on) and times of the low transmission state (T.sub.off) may be altered continuously or discontinuously; and/or the duration of a period of times of the high transmission state (T.sub.on) and times of the low transmission state (T.sub.off) may be altered continuously or discontinuously. Such changes may be determined by a secret coding key.

An apparatus to maintain an environment over an anterior surface of a patient eye can include an enclosure sized and shaped to be seated about the patient eye to form a cavity within the enclosure. The enclosure can be configured to contain a fluid other than ambient air in contact with the patient eye. The apparatus can include a fluid regulator in communication with the enclosure, where the fluid regulator can be configured to regulate the composition of the fluid contained within the enclosure.