The Rainen Air Injection 27G is a precision ophthalmic instrument designed for controlled air injection during eye surgeries, such as vitrectomy or retinal procedures. The 27-gauge size allows for fine and accurate air delivery, enabling surgeons to introduce air or gas into the vitreous cavity with minimal trauma to surrounding tissues. This tool is ideal for creating tamponade in retinal detachment surgery, air-fluid exchange, or other procedures requiring controlled gas or air injection.