vitrectors

A vitrectome is a surgical instrument used in ophthalmology for a procedure called vitrectomy. Vitrectomy is a surgical removal of the vitreous humor, the gel-like substance that fills the large space in the back of the eye between the lens and the retina. This procedure is commonly performed to treat a variety of serious eye conditions that affect the retina or vitreous.

The vitrectome typically consists of a handpiece containing a cutting mechanism and a suction port. The cutting mechanism oscillates rapidly, allowing it to shear the vitreous gel into small pieces. The suction port then aspirates these pieces, along with any fluid, out of the eye. Modern vitrectomes are often integrated into sophisticated ophthalmic surgical machines that control cutting speed, suction levels, and infusion pressure.

The primary indications for vitrectomy include conditions such as diabetic retinopathy, retinal detachment, macular hole, epiretinal membrane, vitreous hemorrhage, and certain types of intraocular infections. By removing the vitreous, surgeons can gain better access to the retina, clear opacities, relieve traction on the retina, and repair underlying pathology. The removed vitreous is usually replaced with a saline solution, air, or a gas bubble, depending on the specific surgical needs. The development of the vitrectome has revolutionized the treatment of many sight-threatening eye diseases, significantly improving visual outcomes for countless patients.