Pain control during panretinal photocoagulation for diabetic retinopathy

This is a protocol for a Cochrane Review (intervention). The objectives are as follows:

To assess the effects (benefits and harms) of different interventions aimed at controlling pain associated with panretinal photocoagulation, in people with severe non-proliferative diabetic retinopathy and proliferative diabetic retinopathy, according to the classification of ETDRS 1991.

This is a protocol.