1. The distance between the ametropie observers eye and the correcting lens of the ophthalmoscope also is a factor of the resulting magnification.

2. Methods: ICG-A was performed using a confocal laser scanning ophthalmoscope (HRA) before PDT at 1 week, 4 and 12 weeks following PDT.

3. In 1851, Helmholtz revolutionized the field of ophthalmology with the invention of the ophthalmoscope; an instrument used to examine the inside of the human eye.