welch allyn model 18330-c - strk ret/cx as op(18335-c) welch allyn ophthalmic set 18330-c 110v (11730/71000-c/18245/18250/05829-u) includes 11730 ophthalmoscope 18245 retinoscope 18250 fixation cards 71000c convertable handle 3.5v 05829 hard case