Comparison of Stellaris Standard Infusion With Stellaris Elite

Last updated: November 21, 2018
Sponsor: Prim. Prof. Dr. Oliver Findl, MBA
Overall Status: Active - Recruiting

Phase

N/A

Condition

Eye Disorders/infections

Eye Disease

Vision Loss

Treatment

N/A

Clinical Study ID

NCT03751254
Stellaris
  • Ages 21-105
  • All Genders

Study Summary

Clinical performance of phacoemulsification platform Stellaris Elite with standard irrigation fluid bottles in myopic eyes. Anterior chamber depth and patients comfort will be compared between the two groups.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Age-related cataract in both eyes

  • Scheduled for bilateral cataract surgery

  • Myopic patiens with axial eye length >25.0mm

  • Age 21 and older

  • Written informed consent prior to recruitment

Exclusion

Exclusion Criteria:

  • Pregnancy (pregnancy test will be taken pre-operatively in women of reproductive age)

  • Preceded ophthalmic surgery

  • Any ophthalmic abnormality that could compromise the measurements

  • Concurrent participation in another drug or device clinical investigation

Study Design

Total Participants: 35
Study Start date:
October 01, 2018
Estimated Completion Date:
December 01, 2019

Study Description

Today phacoemulsification is the most important and safest procedure to perform cataract surgery. However, there are factors that can increase the risk of complications, one of them is an intraoperative increase of intraocular pressure (IOP) which may cause choroidal haemorrhage, capsular block syndrome, or posterior capsular rupture .

Also, more regularly, alterations of IOP provoke sudden changes of the anterior chamber depth, especially in myopic eyes due to intra-operative inverse irido-capsular block, which may result in pain or discomfort for the patient. The deepening of the chamber also makes the surgical maneuvers more challenging in such eyes.

As prevention of such adverse events, it is important to maintain a more or less constant IOP intraoperatively. To ensure this, the pressure of the irrigation fluid must be adjusted to the outflow of aqueous humor, usually by adapting the height of the irrigation fluid bottle (passive fluidics system). As a variable vacuum is produced at the phaco tip to enable the suction of lens fragments, there often are fluctuations of IOP, therefore the surgeon is required to constantly adjust the height of the irrigation fluid bottle.

A novel method to relieve the surgeon of this often-distracting task is to use all-in-one phacoemulsification systems that are able to monitor vacuum flow rates and then adjust the pressure of the irrigation fluid intraoperatively, also resulting in less fluctuations of IOP (active fluidics system). This should also result in reduced deepening of the anterior chamber and less risk of the adverse events as explained above.

Connect with a study center

  • Vienna Institute for Research in Ocular Surgery (VIROS)

    Vienna, 1140
    Austria

    Active - Recruiting

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