Eye drops are sterile preparations, so the production requirements for eye drops are the same as sterile injections, and therefore for filtration, the requirements are also extremely strict. Some eye drops are viscous and very difficult to filter, some eye drops add very little preservatives, and are easily adsorbed by conventional filter cartridges. Filtering Solutions. 
Tht eye drops are sterile preparations, so the production requirements for eye drops are the same as sterile injections, and therefore the requirements for filtration are extremely strict. For example, some eye drops have a high viscosity and are very difficult to filter, while others contain very little preservative and are easily adsorbed by conventional cartridge. 
Cobetter can provide customers with filterability analyses, advice on adsorption, etc. to help them develop appropriate filtration solutions.