The fluorescein angiogram will contain stereoscopic views of 2 fields at specified times after injection. These fields include the macula (Field 2) and the disc field (Field 1). Stereoscopic red-free photographs will be taken of the macula prior to the injection of the fluorescein dye. Fluorescein is injected rapidly (less than 5 seconds) into either the anticubital or other convenient vein according to usual clinic protocol. Photographs will be taken at time zero and at the moment the injection is complete as control photographs, to document the integrity of the interference filters and to document the rate of injection. Stereo pairs of Field 2 and then of Field 1M of the study eyes will be taken between minutes 1 and 3, followed by two additional pairs at 5 minutes and 10 minutes.