Abstract: A system, and corresponding method, that interfaces with a gas polarization system to deliver a polarized noble gas to a subject for inhalation. Large volumes of polarized noble gas are obtained by repeated production/freezing cycles of a spin-exchange system. A storage cylinder is provided for storing a polarized noble gas. A gas delivery line is coupled to the storage cylinder and selectively delivers the polarized noble gas to the storage cylinder, and from the storage cylinder to the subject. A vacuum means is in communication with the gas delivery line for evacuating the storage cylinder in the gas delivery line prior to the noble gas being delivered thereto.

Abstract: The invention relates to a portable bracket for holding a microscope, especially a heavy surgical eye-operating microscope. The bracket has an inverted L-shape with an upright column or stand and a horizontal arm member. A hollow tube is located at the outer end of the horizontal arm to receive a vertical support tube or neck of a microscope. The hollow tube is adaptable to receive various sizes of microscopes and render any heavy microscope more portable by eliminating the normally cumbersome attachment mechanisms. The neck of the miroscope is secured in the tube by a side lock knob which clamps the neck within the tube and/or a top lock knob which is attached to the neck of the microscope and abuts against a top face of the tube.

Abstract: The invention relates to illuminator support for supporting an illuminator such that a beam of light projected from the illuminator is generally coaxial with a line of vision to the subject to be viewed. In a preferred embodiment, the illuminator includes a plate having an aperture therethrough for reception of a lens for a microscope. The line of vision is defined by the axis of the lens. The plate supports a bracket which holds an illuminator on a side of the microscope, the illuminator projecting a beam of light on the subject beneath the lens. In the preferred embodiment, the bracket supports the illuminator so that the beam of light is projected along an axis at an angle of 5.degree.-8.degree. with respect to the axis of the line of vision.

Abstract: An improved iris plane intra-ocular lens for implantations into an aphakic human eye wherein the back side of the haptic crotch regions of each of the horizontal haptics is substantially chamfered for substantially decreasing warping of the iris at the pupillary margin.

Abstract: A spectacle lens having an anterior surface curvature, the anterior surface having a spherically shaped central vision surface area from 12 to 16 diopters and a peripheral, aspherical surface area surrounding the center vision spherical area, the aspherical surface area formed with a uniform diopter gradient varying from the central vision surface area edge to the outer circumference of the lens. The aspherical diopter rate of change, approximately one-third diopter per millimeter which is reduced from the spherical area toward the outer lens circumference, improves the peripheral vision of a person having aphakia when looking through the central vision portion, while eliminating the pin cushion effect found in conventional lenses which result from overpowering in the outer areas of the lens.