A Computational Model of Peripheral Photocoagulation for the Prevention of Progressive Diabetic Capillary Occlusion

Figure 4

Dot and band burn patterns: effects of size. Size effects of dot and band pattern laser burns on ischemic progression. Dot pattern burns (first subfigure rows (a) and (b)) with microns (a) and microns (b) and their effectiveness on prevention of ischemic progression (second to fourth subfigures rows (a) and (b)). Label indicates that the initial total photocoagulated area of these dot pattern burns is equivalent to that with band pattern burns. Dot pattern burn is 40 microns. Band pattern burns (first subfigure rows (c) and (d)) with “ microns, microns” (c) and “ microns, microns” (d) and their effectiveness on prevention of ischemic progression (second to fourth subfigures rows (c) and (d)). Label means that the number of laser burns is 4. Color bar for oxygen maps has unit mmHg. Warmer color in oxygen maps represents higher oxygen tension.

(a) Dot pattern

(b) Dot pattern

(c) Band pattern

(d) Band pattern