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Serial spectral-domain optical coherence tomography imaging from baseline (pre-sildenafil) to 24 months in 6-month intervals in patient 1. Drusen are apparent and remain stable along with best-corrected visual acuity in the right eye (left column), while a noted change of a soft druse is observed in the left eye which has resorbed al the 24-month exam (yellow arrow, right column).
