The scleral tunnel incisions ensured minimal loss of intraocular fluids during instrument excange and scleral plugs were not required to avoid ocular hypotony during scleral indentation.

• 巩膜隧道式切口在器械进出切口时能防止眼内灌注液外流，避免眼球塌陷，不必反复插入和拔出巩膜塞。