An intraocular surgical tool for removing material from an eye of a patient. The tool is provided with a cutting assembly and an aspiration apparatus to remove a portion of vitreous from the eye for inspection and testing. The tool is also fitted with a mechanism for replacing the removed vitreous with saline or similar fluid. The tool is capable of varying cutting speed over a range of fifty cycles per minute. The tool is portable having a housing and battery pack releasably coupled to one another. The cutting assembly is releasably secured to the housing. Accordingly, the housing may be removed and the cutting assembly discarded so that the housing may be sterilized before performing a vitrectomy.
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