Another link in understanding the sequence of retinal dysfunction in AMD

A recent study appearing in Retina evaluated the psychophysical and electrophysiologic responses in patients with early AMD – both with and without contralateral late AMD.
 
It showed that eyes with early AMD and no visual impairment already had detectable mfERG and MP-1 abnormalities.  This suggests that there are preganglionic dysfunction in the retina, and it presents another link in our understanding of the sequence of retinal dysfunction in AMD.