Which type of cautery is most frequently used in ophthalmic surgeries?

Bipolar cautery is most frequently used in ophthalmic surgeries because it allows for precise control of tissue coagulation while minimizing collateral damage to surrounding areas. This is particularly important in delicate procedures involving the eye, where protecting adjacent structures is critical.

The bipolar cautery mechanism involves two electrodes that are placed around the tissue to be cauterized. When current flows between the two electrodes, it generates heat only at the site of contact, which reduces the risk of thermal injury to surrounding tissues compared to monopolar cautery, where a single electrode is used with the return pad placed elsewhere on the body. The localized nature of bipolar cautery enables surgeons to make fine adjustments, making it especially suited for the intricate nature of ophthalmic procedures.

Additionally, bipolar cautery tends to produce less smoke and fewer fumes than laser or thermal cautery, improving visibility for the surgeon and creating a safer environment during surgery. Because of these advantages, bipolar cautery has become the standard choice in ophthalmic surgeries where precision is crucial.