Abstract: A unitary mechanical injector-vitrector hand tool for use in extracting vitreous material from an eye and injecting another fluid into the eye includes a housing body having a proximal end, a distal end and a variable volume cavity in the housing body for establishing a negative pressure or suction. A needle having a sharpened point and a central bore is connected to the proximal end of the housing body. An aperture is formed in a sidewall of the needle near the sharpened end. An inner hollow reciprocal cutter is fitted in the central bore of the needle and has a cutting edge adapted for travel across the aperture. A first manually actuatable lever is pivotably mounted to the housing body and coupled in driving relationship with the reciprocal cutter.

Abstract: A drape assembly is provided for maintaining a sterile field around a surgical microscope. A drape has a first opening for receiving a protruding adapter connected to a lower end of the microscope and a collar is mounted in the first opening. An adhesive portion of the collar secures the drape to the adapter. The adapter becomes part of the optical system and may be referred to as an optical component.

Abstract: An apparatus and method for illuminating a region of an eye is provided and may include at least one optical fiber in fluid connection with a light source for allowing light to be transmitted to a probe for diffusing light into the region of the eye. The probe be formed from a portion of the at least one optical fiber and may be directly inserted into a portion of the eye so that light is diffused into the eye to illuminate the region. The probe may be secured in a substantially fixed position when the probe is inserted within a portion of the eye such as by a frictional engagement between the diffusing means and the eye. A plurality of probes may be inserted within the eye where each probe may include a substantially tapered distal end to facilitate insertion into the eye. The distal end of each probe is formed with a cutting device to enable the probe to be pressed into the eye with the cutting device forming an aperture through which the optical fiber protrudes.