CPT® Code 66740

The ciliary body is an essential structure located just behind the iris of the eye. It plays a crucial role in two primary functions: the production of aqueous humor, which is the clear fluid filling the anterior chamber of the eye, and accommodation, which is the process that alters the shape of the crystalline lens to enable the eye to focus on objects at varying distances. The procedure described by CPT® Code 66740, known as ciliary body destruction via cyclodialysis, is specifically performed to address cases of glaucoma that have not adequately responded to medication or other less invasive surgical interventions. During this procedure, a local periocular anesthetic is administered to ensure patient comfort. A lid speculum is then utilized to keep the eyelids open, allowing the surgeon to access the eye. The technique of cyclodialysis involves the separation of the ciliary body from the scleral spur, which facilitates the creation of a communication pathway between the anterior chamber and the suprachoroidal space. This newly established connection enables the aqueous humor to flow out of the anterior chamber, thereby effectively reducing intraocular pressure, which is a critical factor in managing glaucoma.