A copolymer ophthalmic device material formed by polymerization of a mixture comprising a) 30-60% (w / w) of an aryl acrylic hydrophobic monomer of formula (I) ** Formula ** wherein: A is H； B is (CH2) m, S (CH2) u, O (CH2) v, or [O (CH2) 2] n； u is 1-4； v is 1-4； C is (CH2) w； m is 1-6； n is 1-10； Y is nothing, O, S or NR, with the proviso that if Y is O, S or NR, then B is (CH2) m； R is H, CH3, CnH2n + 1 (n>； = 1-10), iso-OC3H7, C6H5, or CH2C6H5； w is 0 - 6, with the proviso that m + w - 8； and D is H, C1-C4 alkyl, C1-C4 alkoxy, C6H5, CH2C6H5, Br, F, Cl, or I； b) 0.1-3.9% (w / w) of a macromer of formula (II) ** Formula ** in which R1 and R2 are independently -CH3, -CH2CH3, -CH2CH2CH2CH3, CH2CH2CH2CH3, -C6H5 , -CH2C6H5, - CH2CH2C6H5, -CH2CH2CH2C6H5, or -CH2CH2CH2CH2C6H5； R3 is H, CH3, or CH2CH3； z is 2-11； and x indicates the number of repeating units and determines the molecular weight of the macromer and is such that the macromer has a molecular weight of about 300-3500； c) 10-40% (w / w) of 2-ethylhexyl acrylate or n-octyl acrylate； d) 5-30% (w / w) of a hydrophilic monomer selected from the group consisting of: hydroxy methacrylates (C2-C4 alkyl), glycerol methacrylate, and N-vinyl pyrrolidone； e) a crosslinking monomer； and f) a reactive UV absorber； wherein the material of the copolymer ophthalmic device has an equilibrium water content at 35 ° C of less than 4%.Un material de dispositivo oftálmico copolimérico formado mediante polimerización de una mezcla que comprende a) un 30 - 60 % (p/p) de un monómero hidrófobo aril acrílico de fórmula (I)**Fórmula** en la que: A es H； B es (CH2)m, S(CH2)u, O(CH2)v, o [O(CH2)2]n； u es 1 - 4； v es 1 - 4； C es (CH2)w； m es 1 - 6； n es 1 - 10； Y es nada, O, S o NR, con la condición de que si Y es O, S o NR, entonces B es (CH2)m； R es H, CH3, CnH2n+1 (n >；= 1-10), iso-OC3H7, C6H5, o CH2C6H5； w es 0 - 6, con la condición de que m + w - 8； y D es H, alquilo C1 - C4, alcoxi C1 - C4, C6H5, CH2C6H5, Br, F, Cl, o I； b) un 0,1
