Abstract: A contact lens is provided and includes a lens body and an embedded structure embedded in the lens body. The lens body includes a cornea portion and a sclera portion surrounding the cornea portion, and a connection boundary between the cornea portion and the sclera portion has an inner diameter within a range from 11.5 mm to 12.3 mm. The cornea portion defines a layout boundary spaced apart from the connection boundary by a distance within a range from 3.8 mm to 4.2 mm. The embedded structure is arranged outside of the layout boundary, and has a three-dimensional (3D) carrier. The 3D carrier has at least one oxygen permeable channel having a central angle of 360 degrees. Along a top-down direction, at most 70% of an area of an annular layout region between the layout boundary and the connection boundary is shielded by the embedded structure.

Abstract: Provided is a liquid composition for ophthalmic products. The liquid composition includes a buffer solution and a zinc salt dissolved in the buffer solution. The zinc salt has a weight percentage concentration of 1×10?5% to 3% in the liquid composition. The liquid composition may also include a first vitamin dissolved in the buffer solution. The first vitamin has a weight percentage concentration of 1×10?5% to 1% in the liquid composition. The first vitamin includes vitamin B2, a vitamin B2 derivative, or a combination thereof.

Abstract: An ophthalmic composition includes effective amounts of a comfort enhancing agent, a surfactant, and a buffering agent. The comfort enhancing agent includes a first functional monomer that is 2-methacryloyloxyethyl phosphorylcholine (MPC). The comfort enhancing agent has a HLB value between 8 and 40. In addition, the comfort enhancing agent can further include a second functional monomer that is preferably n-butyl methacrylate (BMA).

Abstract: A method for manufacturing a hydrophilic silicone macromer is provided. A hydrosilylation between a Si—H bond of a polysiloxane and a C?C bond of a hydrophilic mononmer is performed by using a rhodium-containing catalyst to form the polysiloxane having a hydrophilic side chain having an amide group or a phosphoryl choline group. After performing an end-capping reaction, the hydrophilic silicone macromer is formed.

Abstract: A method for manufacturing a hydrophilic silicone prepolymer is disclosed. The method comprises ring-opening polymerization (ROP) of cyclosiloxanes, hydrosilylation of polysiloxanes, copolymerization, and end-capping reaction. After the above processes, the hydrophilic silicone prepolymer can be obtained.

Abstract: A silicone hydrogel composition is disclosed. The composition includes at least one silicone macromer, a hydroxy-functionalized silicone-containing monomer, a first hydrophibic monomer and at least one crosslinker, in which the first hydrophibic monomer is N-vinyl pyrrolidone. The silicone macromer and the hydroxy-functionalized silicone-containing monomer are mutually soluble with N-vinylpyrrolidone. Silicone hydrogel contact lenses prepared from the silicone hydrogel composition are also disclosed.

Abstract: A method for manufacturing a hydrophilic silicone macromer is provided. A hydrosilylation between a Si—H bond of a polysiloxane and a C?C bond of a hydrophilic mononmer is performed by using a rhodium-containing catalyst to form the polysiloxane having a hydrophilic side chain having an amide group or a phosphoryl choline group. After performing an end-capping reaction, the hydrophilic silicone macromer is formed.

Abstract: A method for manufacturing a hydrophilic silicone macromer is provided. A hydrosilylation between a Si—H bond of a polysiloxane and a C?C bond of a hydrophilic monomer is performed by using a rhodium-containing catalyst to form the polysiloxane having a hydrophilic side chain having an amide group or a phosphoryl choline group. After performing an end-capping reaction, the hydrophilic silicone macromer is formed.

Abstract: A silicone hydrogel composition is disclosed. The composition includes at least one silicone macromer, a hydroxy-functionalized silicone-containing monomer, a first hydrophibic monomer and at least one crosslinker, in which the first hydrophibic monomer is N-vinyl pyrrolidone. The silicone macromer and the hydroxy-functionalized silicone-containing monomer are mutually soluble with N-vinylpyrrolidone. Silicone hydrogel contact lenses prepared from the silicone hydrogel composition are also disclosed.