CPT® Code 67042

Vitrectomy, mechanical, pars plana approach; with removal of internal limiting membrane of retina (eg, for repair of macular hole, diabetic macular edema), includes, if performed, intraocular tamponade (ie, air, gas or silicone oil)

A mechanical vitrectomy with peeling of the internal limiting membrane (ILM) is a surgical procedure performed using a pars plana approach, primarily indicated for the repair of a macular hole or diabetic macular edema. The vitreous, a gel-like substance that occupies the central cavity of the eye, is removed to facilitate the surgical intervention. A macular hole is characterized by a detachment of the vitreous from the retina, leading to a tear that allows fluid to seep into the hole, which can significantly impair vision. Diabetic macular edema, on the other hand, results from the leakage of blood vessels in the retina, causing swelling and potential vision loss. During the procedure, peeling of the ILM is crucial as it alleviates traction on the macula, thereby reducing the risk of recurrence and enhancing the chances of optimal visual recovery. The surgery involves making three small incisions in the pars plana, which is strategically located between the ciliary body and the retina, allowing access to the vitreous cavity. This approach is essential for the effective removal of the vitreous gel and subsequent treatment of the underlying retinal conditions.