Surgical correction of 
human eye refractive errors such as 
presbyopia, hyperopia, myopia, and 
stigmatism by using transcutaneously inductively energized 
artificial muscle implants to either actively change the 
axial length and the anterior curvatures of the eye globe. This brings the 
retina / macula region to coincide with the focal point. The implants use transcutaneously inductively energized scleral constrictor bands equipped with composite 
artificial muscle structures. The implants can induce enough 
accommodation of a few diopters, to correct 
presbyopia, hyperopia, and myopia 
on demand. In the preferred embodiment, the 
implant comprises an active sphinctering smart band to encircle the 
sclera, preferably implanted under the 
conjunctiva and under the 
extraocular muscles to uniformly constrict the eye globe, similar to a scleral buckle band for 
surgical correction of 
retinal detachment, to induce active temporary myopia (hyperopia) by increasing (decreasing) the active length of the globe. In another embodiment, multiple and specially designed constrictor bands can be used to enable surgeons to correct 
stigmatism. The composite artificial muscles are either resilient composite shaped memory 
alloy-
silicone rubber implants in the form of endless active scleral bands, electroactive ionic polymeric 
artificial muscle structures, electrochemically contractile endless bands of ionic polymers such as 
polyacrylonitrile (PAN), thermally contractile 
liquid crystal elastomer artificial 
muscle structures, magnetically deployable structures or solenoids or other deployable structures equipped with smart materials such as preferably piezocerams, piezopolymers, electroactive and eletrostrictive polymers, magnetostrictive materials, and electro or magnetorheological materials.