Myung and chief ophthalmology resident Lisa He, MD, shot hundreds of photos with various
iterations of the adapter, consulting with Chang and Mark Blumenkranz, MD, retina specialist and chair of the ophthalmology department, until they got it right.
Unlike other
iterations of the charging cradle, this version
of the device is a stand that the system sits in vertically with the back end facing down, and connects to a Nintendo DSi and Nintendo 3DS AC
Adapter through a port on the bottom
of the accessory, which the cable is inserted into.