AST Surgical Technologist Practice Exam

Which laser is considered best for use during a vitrectomy?

1. CO2 laser

2. Nd:YAG laser

3. Argon laser

4. Excimer laser

The correct answer is: Argon laser

The Argon laser is optimal for use during a vitrectomy because it has the ability to precisely target tissues without causing excessive surrounding damage. This precision is essential in vitreous surgery, where delicate structures must be navigated, and any collateral damage could lead to complications. The Argon laser's wavelength is well absorbed by the pigments in the eye, making it effective for procedures such as photocoagulation, which is often performed during vitrectomy to treat various retinal conditions. In contrast, other lasers like the CO2 laser are more suited for cutting and vaporizing soft tissue in procedures such as skin surgeries but may not penetrate well into the eye's interior. The Nd:YAG laser, while useful for procedures such as capsulotomy, is generally not the first choice for vitrectomy due to its different application focus. Finally, the Excimer laser is primarily utilized for corneal correction rather than intraocular procedures, as it operates differently and is not designed for the specific requirements of retinal surgery.