Abstract
To the Editor. —The technique of transretinal drainage of subretinal fluid along with gas fluid exchange at pars plana vitrectomy has been popularized by Charles.1,2Drainage of subretinal fluid is achieved by placing a trans-pars plana tapered needle into the subretinal space through a retinal hole while gas is infused from the infusion port into the vitreous cavity. Controlled suction on the needle combined with infusion force of the gas will allow the subretinal fluid to exit via the tapered needle. In some cases, there is a preexistent or iatrogenically induced retinal hole that can be employed. However, it may be necessary to intentionally create a retinotomy for the purpose of transretinal drainage of subretinal fluid. Several approaches have been employed. Using the vitrectomy cutter creates a hole of uncontrolled size, often larger than required, and may result in bleeding from severed retinal vessels. Using a myringotomy type blade
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