FIELD: ophthalmology.
SUBSTANCE: fluid lens assembly including a front rigid lens, a semi-flexible membrane, fluid layer therebetween, which contains a uniform thickness membrane, configured to be strained and have ratio of stresses in the range of 2.0:1 to 3.0:1, and a contoured coating covering the entire surface of the membrane. Membrane can bloat from minimum to maximum level of convexity. Front lens has negative optical power. Stiffness of semi-flexible membrane is a function of the direction of applied mechanical or hydrostatic voltage. Coating thickness of the membrane varies along the whole length of semi-flexible membrane.
EFFECT: technical result - facilitation of continuous adjustment of the lens to obtain additional correction for compensating for change of natural depth of focus of the eye.
19 cl, 5 dwg, 1 tbl
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