Abstract
Purpose: to develop a technology for the treatment of vitreomacular traction (VMT) with intravitreal injection of bacterial collagenase so that the dosage corresponds to the instruction for use of the drug. Material and methods. We carried out the modeling of a variety of variants of collagenase delivery to the area where it should act, taking into account the standard average anatomical parameters of the normal eye. We used modern facilities available in present-day ophthalmic surgery appliances. Results. A technology of bacterial collagenase delivery to the foveolar region of the retina was developed which ensured the injection of 1 KE dosage as permitted by the instruction for use. 27G caliber instruments, a cannula with a silicone tip and an OMS-800 microscope (Topcon, Japan), equipped with the OFFISS imaging systems, were used to deliver the drug directly to the VMT area of 35 eyes. Of these, VMT could be eliminated in 26 cases (74.3%), the best corrected visual acuity increased by 0.20 ± 0.21 (from 0.46 ± 0.21 to 0.66 ± 0.26). Conclusion. The developed technology of VMT treatment may be used in clinical practice as it ensures an effective concentration of the bacterial collagenase in the fovea area using the minimum dose recommended by the manufacturer in the instruction for drug use while avoiding retinal traumatization during the procedure.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
