A method of manufacturing a silicone hydrogel contact lens, comprising: curing a polymerizable silicone hydrogel lens precursor composition in a contact lens mold assembly to form a polymerized silicone hydrogel contact lens product located in a lens shaped cavity defined by a first mold section and a second mold section of the contact lens mold assembly; demolding the contact lens mold assembly to provide a separated mold section comprising the polymerized silicone hydrogel contact lens product; and delensing the polymerized silicone hydrogel contact lens product from the separated mold section comprising the polymerized silicone hydrogel contact lens product, wherein the delensing comprises (i) contacting the polymerized silicone hydrogel contact lens product of the separated mold section with a liquid to produce a hydrated silicone hydrogel contact lens product; and (ii) removing the hydrated silicone hydrogel contact lens product from the separated mold section using a vacuum device; CHARACTERISED IN THAT the first and second mold sections (3, 5) comprise an ethylene vinyl alcohol resin; the demolding comprises (i) immersing the contact lens mold assembly comprising the polymerized silicone hydrogel contact lens product in a liquid for about 1 to about 10 seconds to facilitate decoupling of the mold sections (3, 5); and thereafter (ii) placing the mold assembly including the first mold section fused to the second mold section in a mold separation apparatus (410, 610) to physically separate the mold sections (3, 5) so that only one of the separated mold sections comprises the polymerized silicone hydrogel contact lens product. curing a polymerizable silicone hydrogel lens precursor composition in a contact lens mold assembly to form a polymerized silicone hydrogel contact lens product located in a lens shaped cavity defined by a first mold section and a second mold section of the contact lens mold assembly; demolding the contact lens mold assembly to provide a separated mold section comprising the polymerized silicone hydrogel contact lens product; and delensing the polymerized silicone hydrogel contact lens product from the separated mold section comprising the polymerized silicone hydrogel contact lens product, wherein the delensing comprises (i) contacting the polymerized silicone hydrogel contact lens product of the separated mold section with a liquid to produce a hydrated silicone hydrogel contact lens product; and (ii) removing the hydrated silicone hydrogel contact lens product from the separated mold section using a vacuum device; CHARACTERISED IN THAT the first and second mold sections (3, 5) comprise an ethylene vinyl alcohol resin; the demolding comprises (i) immersing the contact lens mold assembly comprising the polymerized silicone hydrogel contact lens product in a liquid for about 1 to about 10 seconds to facilitate decoupling of the mold sections (3, 5); and thereafter (ii) placing the mold assembly including the first mold section fused to the second mold section in a mold separation apparatus (410, 610) to physically separate the mold sections (3, 5) so that only one of the separated mold sections comprises the polymerized silicone hydrogel contact lens product.