Ophthalmic devices

A method for preparing an ophthalmic device containing one or more red-light blocking compounds, the method comprising:

• (a) soaking an ophthalmic device in one or more first solvent solutions to swell the ophthalmic device;
• (b) soaking the swelled ophthalmic device in one or more second solvent solutions comprising one or more red-light blocking compounds blocking greater than about 5% to about 25% of red-light transmission through the ophthalmic device at a wavelength of from about 550 nanometers (nm) to about 800 nm to de-swell the swelled ophthalmic device and entrap the one or more red-light blocking compounds in the de-swelled ophthalmic device;
• and
• (c) sterilizing the de-swelled ophthalmic device;
• wherein step (a) comprises:
• (i) soaking the ophthalmic device in the one or more first solvent solutions comprising a blend of a low molecular weight alcohol solvent and water for a time period ranging from about 5 minutes to about 120 minutes;
• and
• (ii) soaking the ophthalmic device of step (i) in one or more additional solvent solutions each comprising one or more of the same or different low molecular weight alcohol solvent, an aliphatic hydrocarbon solvent, a cycloaliphatic hydrocarbon solvent, a ketone solvent, a nitrile solvent, an ether solvent, an amido group-containing solvent and water for a time period ranging from about 5 minutes to about 60 minutes.

A method for preparing an ophthalmic device containing one or more red-light blocking compounds, the method comprising:

• (a) soaking an ophthalmic device in one or more first solvent solutions to swell the ophthalmic device;
• (b) soaking the swelled ophthalmic device in one or more second solvent solutions comprising one or more red-light blocking compounds blocking greater than about 5% to about 25% of red-light transmission through the ophthalmic device at a wavelength of from about 550 nanometers (nm) to about 800 nm to de-swell the swelled ophthalmic device and entrap the one or more red-light blocking compounds in the de-swelled ophthalmic device;
• and
• (c) sterilizing the de-swelled ophthalmic device;
• wherein the one or more red-light blocking compounds are represented by one or more of the following compounds:
• wherein X1 and X2 are independently CH2 or C(CH3)2;
• R1 and R2 are independently H or (CH2)4SO3Na, and R3 is H or SO3Na.