Figure 3
From: A start codon mutation of the FRMD7 gene in two Korean families with idiopathic infantile nystagmus

Optical coherence tomography scans of patients.
The optic nerve cup is shallow with decreased cup volume in 3 patients (upper pannel). The cup-to-disc ratio is below the normal range (0.4 ~ 0.7) in each patient. The fovea was grossly normal (lower panel).