subthreshold laser therapy nondamaging retinal laser therapy 2021-02-11T15:38:45Z NRT Nondamaging retinal laser therapy (NRT) is a retinal treatment with a lack of tissue damage. Lack of tissue damage allows high-density treatment patterns to increase therapeutic response and periodic retreatments for chronic macular diseases. It is similar to SRT (selective RPE therapy), but using lower energy to avoid killing retinal pigmented epithelial cells. PMID:31402999 XCO:0000805 experimental_condition_ontology slaulede