2.6.4. Number of the laser spots

The number of laser spots is correlated with the area of nonvascular retina. Practically, all the surface of non-vascular retina should be destroyed by laser. By consequence, more the disease is posterior, more laser spots are needed. ROP represents an instance in which all photocoagulation must be completed in one session due to its rapid progression. The number of laser spots may vary between 1000 and 5000/eye [5].
