Viscotears is a brand that contains carbomer 980, a synthetic polymer used in eye gels. The core ingredient is the same as in generic carbomer products, but the brand name signals a particular formulation and packaging.
What carbomer 980 is
Carbomer 980 is a high‑molecular‑weight acrylic acid polymer. In medical use it is highly purified and acts as a synthetic tear film substitute that mimics the natural mucin layer of the eye.
How Viscotears differs from a generic gel
While the active polymer is identical, Viscotears includes a specific excipient mix: water for injections, sorbitol, sodium hydroxide for pH control, and a small amount of cetrimide as preservative. The brand also uses a precise nozzle that delivers a uniform droplet size.
Why the brand matters to some patients
Batch‑to‑batch consistency is tighter in large pharmaceutical lines. Small variations in polymer chain length can change the gel’s thixotropic behaviour, affecting how it spreads during a blink. Some patients notice a difference in comfort or visual clarity between Viscotears and cheaper generics.
Preservative‑free options
For users who cannot tolerate cetrimide, Viscotears offers a preservative‑free single‑dose version. These units are more expensive to produce but eliminate preservative‑related irritation.
Alternatives and newer formulations
Other eye lubricants, such as sodium hyaluronate gels, are gaining popularity because they bind water more naturally and support corneal healing. However, carbomer gels remain popular for their thick, protective barrier, especially at night.
Choosing the right product
Most patients can switch from Viscotears to a generic carbomer gel without issue. Those with severe dry eye or autoimmune conditions may prefer the consistency of a branded product or a preservative‑free system.