Figure 3. Comparison of an autosomal recessive spastic ataxia of Charlevoix-Saguenay patient and a healthy subject. The patient (left) shows an increase of retinal nerve fiber layer thickness in the optical coherence tomograph (A), and moderately increased visibility of the retinal nerve fiber layer in the stereophotograph (B) of the optic disc and in the monochromatic red-free digital fundus photograph (C), compared with healthy eye (D-F).