Abstract
In four patients treated for macular subretinal neovascularization with krypton red laser photocoagulation, follow-up fluorescein angiograms performed two to ten days after treatment showed wedge-shaped areas of delayed choroidal vascular filling adjacent to and extending directly from the treated areas. There were no immediate or late changes in the fundus corresponding to the areas of delayed choroidal vascular filling. Goldmann visual fields done on two of the patients showed no functional deficit corresponding to the areas of delayed filling. Deep choroidal energy absorption of the krypton wavelength causing choroidal vessel thrombosis could explain this complication.
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