Features of our models - the material of the IOL
FEATURES OF OUR MODELS - THE MATERIAL OF THE IOL
OptoVet company, Moscow, Russia
Our IOLs are made of hydroPHOBIC acrylic – a complex polymer material that has almost the same softness and plasticity, both in air and in liquid. IOLs made of hydrophobic acrylic belong to the so-called "dry" IOLs. They are sterilized, packed and stored in a normal, " dry " state, in contrast to hydroPHILIC acrylic IOLs, which retain their properties only by being constantly immersed in a liquid (since they contain up to 26% water in their composition). To date, most of the veterinary IOL models produced are of the hydrophilic type, with the exception of the DIOP AIR (Dioptrix) model.
The hydrophobic IOLs created by us, thanks to specially selected parameters of the polymer material, have the following properties:
1. the IOL completely retains its plastic properties in the air, which allows you to safely take it out of the package and slowly put it in the cartridge for implantation or implant it with tweezers. Unlike hydrophilic IOLs, our models do not harden in the air and the doctor can perform preparatory manipulations for IOL implantation for as long as necessary.
2. When IOL is implanted into the eye cavity filled with viscoelastic, our hydrophobic IOL is straightened out very slowly and very smoothly, which allows you to perform any additional manipulations with it before it is completely straightened out. Due to the delayed "opening" of IOL in viscoelastic, it is technically possible to insert IOL through an incision into the anterior chamber of the eye, and then, using intraocular tools, fill it inside the capsule bag.
3. When the viscoelastic is washed out of the eye cavity and replaced with a saline solution or BSS, our IOL is quickly and completely straightened out, completely restoring its original shape.
4. Due to the features of the hydrophobic polymer, our IOL models are significantly more stable inside the capsule bag and maintain high resistance to displacement, even with the diameter of the capsulorexis significantly exceeding the size of the optical part of the IOL (in contrast to hydrophilic models). This allows, if necessary (turbidity or damage to the capsule bag), to remove a significant portion of the anterior capsule, without the risk of displacement of the IOL from the capsule bag (Fig. 7-capsulorexis is drawn in red).