As far as I know, the dosages used in the Verteporfin studies at Stanford have not been published anywhere. Even in the detailed dissertation by Talbott (https://stacks.stanford.edu/file/druid:rp239gf7751/Talbott HE Dissertation-augmented.pdf), only discussions concerning concentrations (e.g. 2 mg/mL) are being made, with no mentioning of volumes injected (i.e. the dosages).
You wrote: "This means we are very close to the optimal dosage. 0.4mg per cm2 is close to 2mg used for 5cm.". Could you please clarify the source for this claim.