Photodynamic therapy controls tumors and preserves vision in some patients with choroidal metastases, according to a systematic review.
PDT may be an alternative to radiation treatment, which is effective but requires hospital visits or surgery, with potential sight-threatening side effects. PDT uses a single laser treatment and has advantages in time requirements and safety.
The study authors identified 52 tumors in 40 eyes of 34 patients. The mean tumor thickness was 1.9 mm, and the mean largest basal diameter was 8.2 mm. After 1.4 PDT treatment visits on average, tumor thickness decreased to