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Objective of this study is the comparative assessment of the beneficial impact of the Viscoat viscoelastic (OVD) and Visthesia OVD on endothelial cells and corneal edema following torsional-ip cataract extraction surgery.
Participants will be recruited from the Cataract Service of the University Hospital of Alexandroupolis (UHA) in a consecutive-if-eligible basis. Eligibility criteria include diagnosis of senile cataract with stage 3 nuclear opalescence according to the Lens Opacities Classification System III (LOCS-3) grading scale. By means of a custom computer randomization program all participants will randomly populate two study groups according to the OVD used (ie. viscoat or visthesia).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Viscoat group | Active Comparator | Patients operated using Viscoat OVD |
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| Visthesia group | Active Comparator | Patients operated using Visthesia OVD |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Viscoat | Procedure | Cataract extraction surgery performed with the Alcon Infiniti VisionSystem platform. Pupils were dilated with Tropicamide 0.5% (Tropixal, Demo, Greece) and Phenylephrine Hydrochloride 5% (Phenylephrine, Cooper, Greece). Periorbital skin and the lids were cleaned and the conjuctival cul-de-sac was irrigated with povidone iodine (Betadine). Patients received topical anesthesia with propacaine hydrochloride 0.5% drops (3 drops prior to surgery). By means of a 2.75mm, superior-temporal (eleven o'clock), self-sealing, clear-cornea incision 3% Sodium Hyaluronate, 4% Chondroitin Sulfate (Viscoat, Alcon, Greece) was injected in the anterior chamber |
| Measure | Description | Time Frame |
|---|---|---|
| Endothelial Cell Count (ECD) | 3 months postoperatively |
| Measure | Description | Time Frame |
|---|---|---|
| Endothelial Cell pattern (ECP) | 3 months postoperatively | |
| Central corneal edema (CCE) | 3 months postoperatively |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Georgios Labiris, MD, PhD | Democritus University of Thrace | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University Hospital of Alexandroupolis | Alexandroupoli | Evros | 68100 | Greece |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 25804586 | Result | Labiris G, Sideroudi H, Rousopoulos K, Kozobolis VP. Cohesive versus dispersive-cohesive ophthalmic viscosurgical device in torsional intelligent phaco. J Cataract Refract Surg. 2015 Mar;41(3):681-2. doi: 10.1016/j.jcrs.2015.01.010. No abstract available. |
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| ID | Term |
|---|---|
| D002386 | Cataract |
| ID | Term |
|---|---|
| D007905 | Lens Diseases |
| D005128 | Eye Diseases |
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| ID | Term |
|---|---|
| C501944 | chondroitin sulfate, sodium hyaluronate drug combination |
| C561626 | visthesia |
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| Visthesia | Procedure | Cataract extraction surgery performed with the Alcon Infiniti VisionSystem platform. Pupils were dilated with Tropicamide 0.5% (Tropixal, Demo, Greece) and Phenylephrine Hydrochloride 5% (Phenylephrine, Cooper, Greece). Periorbital skin and the lids were cleaned and the conjuctival cul-de-sac was irrigated with povidone iodine (Betadine). Patients received topical anesthesia with propacaine hydrochloride 0.5% drops (3 drops prior to surgery). By means of a 2.75mm, superior-temporal (eleven o'clock), self-sealing, clear-cornea incision sodium hyaluronate 1.5% and lidocaine hydrochloride 1% ophthalmic viscosurgical device (OVD) (Visthesia, Carl Zeiss, Germany) was injected in the anterior chamber |
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