Vitrectomy, a surgical procedure for treating various retinal disorders, has evolved significantly with advancements in instrumentation and techniques. Trocars, probes, and duty cycles are integral components of vitrectomy devices, playing crucial roles in ensuring optimal surgical outcomes. This review aims to provide a comprehensive analysis of trocars, probes, and duty cycles, exploring their functionality, advancements, and their impact on vitrectomy surgery. By understanding the intricate details of these components, ophthalmic surgeons can enhance their surgical precision, efficiency, and patient outcomes.