System and method for generating treatment patterns

A photomedical treatment system for treating target tissue, the system comprising:

• a treatment light source configured to generate a treatment beam of treatment light;
• a scanner assembly configured to translate the treatment beam of treatment light;
• a display;
• and
• a controller configured to:
• cause display of, on the display, a graphical user interface having a plurality of pattern configurations;
• process a received user selection of a pattern configuration of the plurality of pattern configurations, the user selection received via the graphical user interface;
• partition the pattern configuration into a first sub-pattern of spots and a second sub-pattern of spots, wherein the first sub-pattern of spots and the second sub-pattern of spots each include a plurality of concentric arcs or a plurality of rows and columns, and wherein the first sub-pattern of spots are interlaced with the second sub-pattern of spots to form the pattern configuration;
• in accordance with the user selection, initiate, at a first time using the scanner assembly, translation of the treatment beam of treatment light to form a portion of the first sub-pattern of the selected pattern configuration of spots on the target tissue;
• prior to completing formation of the first sub-pattern of the selected pattern configuration of spots on the target tissue, detect an interruption event;
• and
• in accordance with detecting the interruption event;
• forgoing forming remaining spots of the first sub-pattern on the target tissue;
• and
• initiate, at a second time after the first time using the scanner assembly, translation of the treatment beam of treatment light to form the second sub-pattern of the selected pattern configuration of spots on the target tissue.