Abstract: This device consists of a frame and light filters so as to enable a highly portable device to measure Dark Adaption. Dark Adaption is a process which tests sight in low light conditions and is an indicator of wet AMD disease, the leading cause of blindness in older people. This testing process was first established by the Goldmann-Weekers machine in the 1950s. The portability is achieved by use of filters, a common means to light reduction, and elimination of a machine outer cover. The simplicity and portability of this invention allows many types of very substantial cost efficiencies in eye examinations and also greater flexibility. With this device, testing for incipient wet AMD may be achieved in routine eye examinations where it is not now common. Home testing for wet AMD is also made possible and practical with this device.

Abstract: A process for simulating correction of human eyeball for better visual acuity includes a processor and coupled memory. The memory stores program for processor to obtain geometric data and a wave-front aberration of human eyeballs and simulate an eyeball model. The eyeball model and an ophthalmic lens model are combined to form a correction system for visual acuity. According to the convex/concave lens imaging rule, and using an object placed in front of the eyeball, a determination is made of an optically uncorrected first image formed at a retina of the eyeball, and a visually-corrected second image formed at the retina of the eyeball. The first object image and the second object image can be output for comparison.

Abstract: A trial frame is provided in which a trial lens can be moved close to, or moved away from the front of the patient's face, and includes: a main bar, one end of which is connected to a hinge, and another end is turnable forward and backward relative to a patient's face; a slide member that is slidably mounted on the main bar; a sub-bar that is provided at the lower part of the slide member to be at a right angle to the main bar; a support shaft and a support plate that are slidably hung from the sub-bar; a vertical shaft that is provided on the support plate; an angle-adjusting member, one end of which is supported by the support plate to rotate around the vertical shaft; and trial lenses, each of which is hung by a fork-shaped arm at the lower part of the angle-adjusting member.

Abstract: An eyeglass frame includes left and right length adjustable temples; left and right viewing assemblies adjustably mounted in left and right frames respectively; and a length adjustable bridge. Either viewing assembly includes a transversely moveable frame element slidably secured to the left or right frame; a longitudinally moveable frame element slidably secured to the transversely moveable frame element; a front aperture member slidable about the longitudinally moveable frame element and including an upper longitudinal slot and a cut on an inner side; a corresponding rear aperture member slidable about the longitudinally moveable frame element and including a lower longitudinal slot and a cut on an inner side; and a circular member rotatably secured to the longitudinally moveable frame element and including two projections moveably disposed in the slots respectively. An aperture is formed by at least the cuts, whereby rotating the circular member will change size of the aperture.

Abstract: An ophthalmic diagnostic device is disclosed having a trial spectacle frame (100), phoropter (900), or other device adapted to be placed proximate a living eye of a patient, and having a set of trial lenses (300) adapted to be attached to the device. At least one of the trial lenses is adapted to correcting a higher order aberration associated with the living eye of the patient, including correcting a third, fourth and fifth higher order aberration or a combination of higher order aberrations as selected by the patient's healthcare practitioner.

Abstract: A flexible transparent mask having a vision blocking portion is positioned over the infant's “good” eye to prevent amblyopia and a large plastic corrective lens is positioned over the eye under correction, and is heat laminated to the mask during manufacture. Since the entire mask is mounted upon and removed from the infant's face in a single motion, separate application and removal of a corrective lens and a conventional patch is avoided for convenience. The mask avoids the cumbersome conventional removal, sterilization and reinsertion of a contact lens to prevent infection, or alternatively, the use of external eyeglasses which the child can peek around, unlike the preferred mask held close to the infant's face. Another embodiment uses a double-sided adhesive ring for affixing the lens over the infant's eye along with a separately applied eye patch over the “good” eye.

Abstract: A lens holder system for temporarily holding a prescription lens in the openings eyeglass frames having perimeter grooves so that the patient can see what a pair of eyeglass frames will look like on him or her. The system has a plurality of pairs of lens holders. Each lens holder includes a prescription lens, a prescription lens encircling portion, a pair of resilient spring wires fixed at first ends to opposite sides of the prescription lens encircling portion, and a pair of guides positioned on the lens encircling portion distant from the point of attachment of the first ends of the spring wires to the lens encircling portion. The second ends of the spring wires are slidably engaged with one of the guides and the second ends of the spring wires have terminal stops to prevent the spring wires from being withdrawn from the guides.

Abstract: A trial frame is disclosed presenting pairs of lens holders on one or both sides of a common beam for ocular therapy and testing by a plurality of test lenses. Each lens frame holder is grooved to simultaneously accommodate plural lenses and may completely or partially encircle lenses to releasably hold them. Secured at each lateral extremity of the common beam is an elastic head band to quickly and securely position the test frame for use especially as on an active younger child.

Abstract: A filter holder which clips on to an ophthalmic trial refraction frame or clip on to a person's spectacles with a clip on attachment is disclosed comprising a knob which rotates a shaft and a gear. The gear engages a ring with teeth in it. This ring is attached to a plate which has a channel cut through it, a pin to locate the position of the variable neutral density filter and a locking disc which holds the filter against the plate. On the back of the filter holder is a disc with an aperture mounted off the axis of symmetry of the filter holder so that the aperture is aligned with the channel in the edge of the plate. The patient sights through the aperture, the channel and the variable neutral density filter. By turning the knob, the neutral density filter rotates and the density in log units can be read on a scale on the front of the body of the filter holder.

Abstract: A pupil location gauge having an index member movable in relation to a graduated scale may be used in an ophthalmic test lens holder for subjective measurement of both vertical and horizontal pupillary distance. Either monocular or binocular measurements of the pupil location may be made with respect to a spectacle frame.

Abstract: A lens holder having a pair of spring connected clamping members with apertures therein mountable over a lens socket of spectacle frames. The clamping members have an extent which is sufficient to completely span lens sockets and extend a distance beyond. Transverse lateral rulings on at least one of the clamping members permit gauging an aperture in a clamping member relative to a socket in a spectacle frame. In this manner, geometrical characteristics of a test lens may be measured and recorded for the purpose of making permanent lenses for a selected spectacle frame. In addition to transverse lateral rulings on a clamping member, angular rulings about an aperture in a clamping member may also be applied for determining angular orientations of a test lens.