[1] Myodiscs are not a preferred lens type, but are the least expensive option among available lenses fitted for minus powers beyond -12 diopters.
These are rarely prescribed sets of specialty lenses used in cases of extremely poor vision, or near blindness.
Low vision clinics in under-privileged cost-reducing centers list the myodisc for correction of high myopia.
Lens box diagrams used in dispensing should consider edge thickness, reduced by smaller eyesizes, and oval/circular shapes.
Weight problems associated with these lenses are often not anticipated by untrained dispensaries, and end products are disappointing after inclusion of special instructions to fabricating labs.