Visual field and lens occluder for eyeglasses

Claim 1

A corrective visual device for treatment of strabismus and similar problems of unbalanced eye musculature by discouragiing use of the stronger eye and promoting use and exercise of the eye muscles of the weaker eye, said corrective visual device being used with a pair of eyeglasses having a frame formed with an inside bridge joining lens frame portions in which the lenses are seated and outside bows on either side for supporting the pair of eyeglasses, comprising: a visual field and lens occluder comprising a generally flat pocket-like enclosure constructed and arranged for occluding or blocking the field of view of one eye through one lens frame portion and lens of a pair of eyeglasses without irritating contact by the occluder with the skin or face of the wearer, said pocket-like enclosure comprising first and second gores of soft flexible material joined along the bottom or base portion of form said enclosure, said base portion contoured with a curvature to accommodate and generally conform to the base of a lens frame portion and lens of a pair of eyeglasses, said enclosure formed with the gores open at the top for sliding the enclosure from below over a lens frame portion and lens of a pair of eyeglasses, said enclosure formed with side openings comprising first and second notches between the gores extending downward from the top of the gores and meeting the joined base portion of the enclosure, said first notch extending to a first depth between the gores of the enclosure for receiving the higher of the inside bridge between the lens frame portions and lenses of a pair of eyeglasses and the outside bows, said second notch extending to a second depth greater than the first notch and first depth for accommodating the lower of the inside bridge and an outside bow of the pair of eyeglasses whereby said enclosure may be fitted over either the right or left lens frame portions and lenses of a pair of eyeglasses by inverting the enclosure right and left so that the first notch of lesser first depth is always on the side for receiving and accommodating the lower of the inside bridge and the outside bows of the frame of a pair of eyeglasses, said enclosure formed with closure means at the top of the gores for securing the enclosure in position over a lens frame portion and lens of a pair of eyeglasses so that the field of view of one eye of a wearer through said covered lens is occluded thereby constraining the wearer to exercise greater use of the other eye through the field of view of the unoccluded lens.