1. Superficial lipid layer
2. Aqueous phase
3. Mucine layer
4. Surface of the corneaWenn der Tränenfilm zusammenbricht

When the tear film breaks up

An insufficient tear film production or a change in its composition means that the tear film can no longer form a continuous layer, i.e. it breaks up (Figure 2). As a consequence, the ocular surface cells are deprived of oxygen and nutrients leading to cellular damage that in turn causes itching, burning and a foreign body sensation. These symptoms are often accompanied by pain. In the advanced stage dry eyes can lead to a damage of the cornea and conjunctiva.

Sodium hyaluronate guarantees optimal lubrication

he naturally occurring endogenous sodium hyaluronate is ideally suited as a long-lasting, intensive ocular lubricant. Due to its chemical structure, sodium hyaluronate binds and retains many times its own weight in water. It adheres perfectly to the ocular surface and forms a uniform and stable film that keeps the eyes lubricated.

Preservative and phosphate free in the patented COMOD^® device

Preservatives, which are designed to prevent contamination of eye drops during storage and use, can affect the natural tear film and damage the cells of the ocular surface. Furthermore, they can cause intolerance reactions¹. Modern ocular lubricants are therefore preservative free. This also applies to HYLO COMOD^® as it is provided in the patented COMOD multi-dose device that, in a unique way, prevents contamination of its contents.

Phosphates that are widely used in eye drops can also have a harmful effect on an already damaged cornea². The binding of phosphate to calcium, which is released from damaged corneal cells, may lead to the formation of sparingly soluble calcifications that can permanently impair vision. Therefore, eye drops used on a dry and damaged ocular surface should not contain phosphates. HYLO COMOD^® is phosphate free and therefore presents no risk of corneal calcification.