1. Our scientific focus
  2. Technologies


Adaptation, evolution and innovation

Our commitment to the ophthalmology community is independent of the product cycle or short term financial opportunity. We understand that adaptation and evolution of therapies are as crucial in ophthalmology as pure innovation. 

As well as our range of pharmaceuticals, we have developed a number of technologies to improve the outcome and experience for the patient using our products.

Preservative free

Santen led the market to widespread development of preservative-free ophthalmology therapies, particularly for glaucoma and dry eye disease (DED). Santen introduced the first preservative-free prostaglandin for the treatment of glaucoma. Preservative free products help reduce irritation and damage from long term use, encouraging better patient adherence. A wider range of patients can benefit from these products, because they have a lower potential for adverse events. Santen is introducing preservative free, multidose formats of a number of products in the portfolio.

Dropaid logoSanten Dropaid® delivery devices

Dropaid® delivery aids have exclusively been developed for use in combination with Santen products. Dropaid delivery aids are especially helpful for patients with weak or unsteady fingers or hands. It is a medical device used with both Santen's single-dose and multi-dose (preservative free) containers.


Dropaid® single-dose

Dropaid® single-dose is a delivery aid for eye drops in a single-dose container. It helps the patient to instil eye drops from a single-dose container.

Dropaid® single-dose is suitable with Cosopt®, Fotil®, Fotil® forte, Lecrolyn®, Loyada®, Oftan® Timolol, Oftaquix®, Optimol®, Saflutan®, Taflotan®, Taptiqom®, Trusopt® products in single-dose containers.


Dropaid® multidose

Dropaid® multidose is a delivery aid for eye drops in a preservative-free multidose container. It helps the patient to instill eye drops from a preservative-free multidose container.

Dropaid® multidose is suitable with Cationorm® , Taflotan®, Saflutan®, Safluround®, Cosopt®, Costec®, Cosduo®, Cosidime®, Hyprosan®, Lecrolyn®, Lecrosine® products in multidose containers.

DropAid for Santen preservative free multidose eye drops

DropAid for Santen preservative free multidose eye drops

DropAid for Santen’s unit dose eye drops

DropAid for Santen’s unit dose eye drops

Dimple Bottle

We know that use of many medicines may be less frequent or in lower quantities than is recommended or prescribed, so Santen has taken a number of steps to reduce any cause of reduced patient adherence. 

Ease of handling is an important influence on bottle design with patients wanting a bottle that is easy to open, hold and use. Our Dimple™ bottle was designed to overcome problems with opening the bottle and controlling the drops so they reach the eye and are dispensed in the right quantity. 
The Dimple™ bottle has an easy grip shape and controlled dropping with an easy squeeze bottle that’s responsive to pressure. It’s also easier to open because of edges on the cap. 

Novasorb is our unique patented technology that helps improve the time that eye drops remain in the eye, helping reduce loss of product through blinking. We developed this cationic oil-in-water emulsion jointly with Novagali (now integrated as a Santen company), for use in various eye drop products in the portfolio. Novasorb improves bioadsorption, spreading on the ocular surface and residence time (the length of time the medication remains on the ocular surface). It can reduce frequency of eye drop application for patients.


We are developing the CE-marked medical device PRESERFLO™ MicroShunt* as a surgical implant for lowering intraocular pressure by promoting better drainage of aqueous humour from the eye. Designed using an innovative and bio-inert material, the device is implanted using minimally invasive surgery. PRESERFLO™ MicroShunt* is expected to offer a new surgical option for treating glaucoma.

*PRESERFLO™ is the new trademark of Innfocus MicroShunt®. PRESERFLO™ MicroShunt will replace Innfocus MicroShunt® in the future.

Santen has worked with partners to develop multidose bottles for preservative free eye drops, ensuring microbiological safety along with ease of use for patients.

See more about Santen’s two preservative free, multi-dose bottles here:

Santen is expanding into the surgical field with the introduction of the 'xact™ Mono-EDoF™', manufactured by Advanced Vision Science. More information will be available soon.

Document number: NP-SANTEN-EMEA-0123
Last updated: August 2019