i need some very basic info about the options when buying glasses.\n\nmy prescription is:\nR sph -6 cyl -1 ax 180 pris 1 base DN\nL sph -5.75 cyl -1 ax 180 pris 1 base UP\n\nwith this prescription, can i get rimless glasses? or is it too strong?\nif its too strong, would half-rimless work out?\n\nare there any restrictions on bendy-metal glasses (e.g memoflex) with\nregard to prescription? also how exactly does bendy-metal frames work?\nare they essentially unbreakable? are they heavier or lighter than\nnon-bendy frames?\n\ni read that the latest plastic lenses are lighter and thinner than\ntheir glass counterparts, is it true? how badly do they scratch, will\ncleaning it with a cloth likely scratch it?\n\ntransitions lenses (aka reactions) - in darkened mode, are they the\nequivalent of shades? how "slow" is the transition from light to\ndarkened? in a dark room with a bright monitor will they "switch on and\noff" as i look at and away from the screen?\n\nfinally roughly how thick (in mm roughly) would a lens fitting the\nabove prescription be, for both plastic and glass?\n\ncheers.