Abstract: A mixture for enhancing eye lubrication comprises a plurality of microspheres having diameters ranging from about 5-40 microns combined with an aqueous component comprising water. The microspheres can be coated with oil. When the mixture is applied to the surface of a user's eyes, the microparticles will enhance lubrication during blinking and partially lift eyelids so that other components of the mixture can be better distributed beneath the eyelids. An oil can be added to the mixture. Preferably the oil is configured so that, when the mixture is agitated, it forms a temporary, thermodynamically unstable emulsion from which the oil quickly disassociates when the mixture is applied to the eye. The oil thus is quickly available to enhance lubrication performance.

Abstract: An ophthalmic glare tester for evaluating visual acuity under conditions of strong diffuse illumination is designed for convenient mounting on a conventional ophthalmic instrument such as a transilluminator or ophthalmoscope. The glare tester incorporates a generally concave reflector for providing diffuse illumination to an eye and a mounting for attachment to an ophthalmic instrument. The reflector includes a wall having an interior light-reflecting surface at least partially enclosing a hollow interior. The glare tester provides for conducting illumination from the ophthalmic instrument to the interior light reflecting surface of the reflector.

Abstract: An ophthalmic glare tester for evaluating visual acuity under conditions of strong diffuse illumination is designed for convenient mounting on a conventional ophthalmic instrument such as a transilluminator or ophthalmoscope. The glare tester incorporates a generally concave reflector for providing diffuse illumination to an eye and a mounting for attachment to an ophthalmic instrument. The reflector includes a wall having an interior light-reflecting surface at least partially enclosing a hollow interior. The glare tester provides for conducting illumination from the ophthalmic instrument to the interior light reflecting surface of the reflector.