[Dependence of the efficiency of low-intensity laser therapy in involution chorioretinal dystrophy on a used wavelength].
Seventy-five patients (75 eyes) with central involution chorioretinal dystrophy (non-exudative type at the progression stage) were followed up. All of them received low-intensity laser therapy. Irradiation of 890 nm, 644 nm and 500 nm was used in groups 1, 2 and 3, respectively. The study purpose was to compare the efficiency of wavelengths. Visual acuity and retinal sensitivity were determined. The results were evaluated immediately after treatment and in 3 months. The maximal improvement in visual acuity and retinal sensitivity was in those who received 890 nm laser therapy; 500 nm irradiation--a less pronounced effect and 640 nm--the lowest one. We attribute such distribution of efficiency to a proliferation type of each irradiation range in the macular zone.
Abramov MV
Egorov EA
D000368:Aged; D002829:Choroid / Q000473:pathology* / Q000528:radiation effects; D015862:Choroid Diseases / Q000503:physiopathology / Q000532:radiotherapy*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D028022:Low-Level Light Therapy / Q000295:instrumentation*; D008266:Macula Lutea / Q000473:pathology / Q000528:radiation effects; D008297:Male; D008875:Middle Aged; D012162:Retinal Degeneration / Q000503:physiopathology / Q000532:radiotherapy*; D014792:Visual Acuity / Q000502:physiology; D058609:Visual Field Tests; D014794:Visual Fields / Q000502:physiology