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OpenTrials
Completed

NCT Number: NCT05495555

The Cutting Efficiency of Hybrid Tips in Different Grades of Cataract

The objective is to assess the efficiency (as measured by phaco time, aspiration time, and fluid use) of the hybrid tip in removing cataract grade 3 & 4 in high and low intraocular pressure (IOP) settings.

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Key information

Age range

50 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Cataract & Laser Institute

Medford, Oregon, 97504, United States

About this study

This study is a Single site, single-masked, randomized, prospective, observational study of the efficiency of the hybrid tip in removing cataract grade 3 & 4 in high and low intraocular pressure (IOP) settings. Subjects will be assessed pre-operatively, operatively and at 1 day and 1 week post-operatively. Clinical evaluations will include measurement of visual acuity, central corneal thickness, IOP, visual analog pain scale, and slit lamp examination.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Subjects are eligible for the study if they meet the following criteria:

Note: Ocular criteria must be met in both eyes.

  • Be eligible to undergo sequential bilateral uncomplicated cataract surgery
  • Grade 3 or 4 cataract (PNS or LOCS III)
  • Undergo uneventful cataract surgery
  • Gender: Males and Females.
  • Age: 50 or older.
  • Willing and able to provide written informed consent for participation in the study.
  • Willing and able to comply with scheduled visits and other study procedures.

If any of the following exclusion criteria are applicable to the subject or either eye, the subject should not be enrolled in the study.

  • Patient under 50 years of age
  • Unable to complete sequential bilateral cataract surgery in both eyes by the same surgeon (JS)
  • Patient cataract surgery complicated by posterior capsular tear
  • Any disease state deemed by PI that increases risk of complicated cataract surgery (ie Pseudoexfoliation syndrome, zonular dehiscence, history of eye trauma. RA, prior refractive surgery, etc)

The principal investigator reserves the right to declare a patient ineligible or non- evaluable based on medical evidence that indicates they are unsuitable for the trial.

Pregnancy has a known effect on the stability of refractions and visual acuity. As such, subjects who become pregnant during the study will not be discontinued but their data may be excluded from analyses of effectiveness.

Treatment and study plan

INTREPID® Hybrid tip

Device

INTREPID® Hybrid tip for cataract removal

Primary outcomes

  1. Phaco Time

    Time frame: Day 0 (surgical visit)

  2. Aspiration Time

    Time frame: Day 0 (surgical visit)

  3. Fluid Use

    Time frame: Day 0 (surgical visit)

Secondary outcomes

  1. Central Corneal Thickness Change From Baseline

    Time frame: baseline and 1 week postoperative

Other outcomes

  1. Cumulative Dissipated Energy

    Time frame: Day 0 (surgical visit)

    This will measure the the amount of ultrasound energy used during cataract removal

Sponsors and collaborators

Lead sponsor

Cataract and Laser Institute of Southern Oregon

Other

Collaborators

  • Sengi

Registry information

Important dates

Study start
2022
Primary completion
2024
Study completion
2024
First posted
Aug 10, 2022
Registry last updated
Mar 11, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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