Related Experiment Video
Updated: Jan 10, 2026
In vivo Structural Assessments of Ocular Disease in Rodent Models using Optical Coherence Tomography
Published on: July 24, 2020
Randomized comparative multicenter study assessing two dispersive viscosurgical devices for cataract surgery
Ekkehard Fabian1, Andrea Janeková, Pablo de Arriba Palomero
1From the AugenCentrum - Augenklinik Rosenheim, Rosenheim, Germany (Fabian); Eye Centre Prague, Prague, Czech republic (Janeková); Faculty of Medicine, Charles University, Hradec Kralove, Czech Republic (Janeková); Hospital Universitario Ramón y Cajal, Madrid, Spain (de Arriba Palomero); Oftalvist Alicante, Alicante, Spain (Tañá-Rivero); Eye Center, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany (Böhringer); Precise Vision Augenärzte - Augentagesklinik Rheine, Rheine, Germany (Kretz); Premium Clinic Teplice, Teplice, Czech Republic (Pašta); Eye Centre, Prague, Czech Republic (Pašta); Department of Ophthalmology 1st Faculty of Medicine of Charles University and Military University Hospital, Prague, Czech Republic (Pašta); Complejo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, A Coruña, Spain (Touriño-Peralba).
Purpose:
To compare 2 dispersive ophthalmic viscosurgical devices (OVDs), Z-HYALCOAT (investigational) and HEALON EndoCoat (control), with a 3-month postoperative follow-up.
Setting:
Multicenter study conducted in 11 sites across Europe.
Design:
Prospective, randomized, masked, multicenter postmarket study.
Methods:
Adult participants having clear intraocular media excluding the presence of cataract and scheduled for uneventful age-related cataract removal by phacoemulsification and intraocular lens implantation in the capsular bag with sole administration of either investigational or control device as per randomization scheme were included in this study. Primary endpoint was the incidence of intraocular pressure (IOP) ≥30 mm Hg. Other endpoints included slitlamp observations, corneal endothelial cell density (ECD), surgeon-reported device functionality, and rate of adverse events and device deficiencies.
Results:
242 participants were treated in this study (123 with the investigational OVD and 119 with the control OVD). In per-protocol population, 13 eyes (11.2%) from the investigational group and 19 (17.0%) from the control group reached an IOP equal to or higher than 30 mm Hg at 8 hours after device use. Slitlamp examinations performed up to 3 months did not reveal any relevant differences between the groups. ECD loss was also similar between the groups. Surgeon-reported OVD functionality was generally favorable and comparable for both devices.
Conclusions:
This investigation proved the noninferiority of Z-HYALCOAT to HEALON EndoCoat in IOP spikes and showed the 2 devices to be highly similar in all evaluated aspects.
