Photoreceptor inner segment / outer segment (IS / OS) at the baseline and after 15 months of follow-up. The figure shows the focal presence (arrow) and the focal central disruption (arrow head) of the IS/OS layer before the IFN-α injections (a). Fifteen months after treatment we found a decrease of focal central disruption (arrow head) of the IS/OS layer (b).
Cellini et al. BMC Ophthalmology 2013 13:63 doi:10.1186/1471-2415-13-63