CPT® Code 0100T

Placement of a subconjunctival retinal prosthesis receiver and pulse generator, and implantation of intraocular retinal electrode array, with vitrectomy

The procedure described by CPT® Code 0100T involves the placement of a subconjunctival retinal prosthesis receiver and pulse generator, along with the implantation of an intraocular retinal electrode array, which is commonly referred to as an artificial retina. This advanced surgical intervention is primarily aimed at restoring vision in patients who are blind due to retinal diseases, including conditions such as retinitis pigmentosa, hereditary retinal degeneration, and certain types of macular degeneration. The complete system consists of an external video camera that is mounted on eyeglass frames, which captures visual images and transmits them to an external microcomputer worn by the patient. This microcomputer processes the images and sends signals to a wireless receiver that is implanted in the subconjunctival space of the eye. The retinal electrode array is then positioned on the central macula and secured to the retina, where it stimulates retinal ganglion cells and mimics photoreceptor function, thereby facilitating the perception of visual stimuli. The surgical procedure requires careful dissection of the conjunctiva and tenon layers to access the sclera, followed by vitrectomy, which involves the removal of the vitreous humor through small incisions. This meticulous approach ensures that the retinal prosthesis is accurately placed and secured, ultimately aiming to enhance the visual capabilities of individuals affected by severe retinal impairments.