Rods and cones are part of eye. They differ in following way. -Rods are very sensitive to light and can distinguish colors.cones are less sensitive to light and can distinguish color. so correct option i conclude is C.
Myasthenia Gravis: Treatments. 1  Pyridostigmine (Mestinon) is the usual first line treatment for MG. 2  Prednisone and Cyclosporine A are used for long-term immunosuppression when. 3  Further benefit is needed, and. 4  Relatively rapid onset of benefit is desired.
PUVA (psoralen and ultraviolet A radiation) treatment has been used for decades to treat severe psoriasis. In this combination therapy, the psoralen, taken internally, acts as a skin sensitizer.The sensitized skin affected by psoriasis can then be treated by ultraviolet A radiation.UVA is also of benefit in treating vitiligo, mycosis fungoides (cutaneous T-cell lymphoma), and graft versus host disease. The most common form of therapy combines 8-methoxypsoralen taken by mouth followed 45-60 minutes later by exposure of the skin to UVA.