Table 4.

Selected commercial examples of hydrogel-based ocular drug delivery systems and soft contact lens materials.

Product Name	Principal Components	Indications	Manufacturer
Biofinity®	Silicone hydrogel	Continuous wear up to 7 days. Corrects near sightedness and farsightedness	Cooper vision
Air optix® night and day®aqua	Lotrafilcon-A (fluoro-silicone hydrogel)	Continuous wear up to 7 days. Corrects near sightedness and farsightedness	Alcon
Retisert®	Fluocinolone acetonide, silicone elastomer and polyvinyl alcohol membrane	Deliver long term control of inflammation	Bausch and Lomb
Lacrisert®	Hydroxypropyl cellulose	Moderate to severe dry eyes	Bausch and Lomb
Systane®	Propylene glycol	For use as a lubricant to prevent further irritation or to relieve dryness of the eye	Alcon
Restasis®	Cyclosporine, carbomer copolymer Type A	Indicated to increase tear production	Allergan
Proclear (Omafilcon B)	2-hydroxy-ethylmethacrylate and 2-methacryloxyethyl phosphorylcholine cross-linked with ethylene glycol dimethacrylate	Indicated for daily wear for the correction of visual acuity	Cooper vision
Clintas Hydrate®	Carbomer	Lubricating eye gel for occasional dry eye discomfort	Altacor
Dailies® AquaComfort	Nelfilcon A polymer (polyvinyl alcohol partially acetalized with N-formylmethyl acrylamide)	Optical correction of refractive ametropia	Ciba vision
Systane® gel drops	Polyethylene glycol 400, propylene glycol	For the temporary relief of burning and irritation due to dryness of the eye	Alcon
Hylo® gel	Sodium hyaluronate, citrate buffer, sorbitol	Long lasting dry eye relief	Candorvision
Iluvien®	Fluocinolone acetonide, polyvinyl alcohol, and silicone adhesives	Treatment of diabetic macular edema	Alimera Sciences
Yutiq™	Fluocinolone acetonide, polyvinyl alcohol	Treatment of chronic non-infectious uveitis affecting the posterior segment of the eye	EyePoint Pharmaceuticals Inc.
Ozurdex®	Dexamethasone, poly (d,l-lactide-co-glycolide)	Macular edema, non-infectious uveitis	Allergan