Subretinal recombinant human tissue plasminogen activator injection using a 41G needle for the management of submacular hemorrhages:a 3-case report

Dear Editor,Submacular hemorrhage(SMH)is the accumulation of blood in the macular region caused by changes in retinal or choroidal circulation[1].SMH may be caused by age-related macular degeneration(AMD),pathological myopia,polypoid choroidal angiopathy(PCV)or retinal macroaneurysm[2].