INTRAOCULAR PRESSURE MEASUREMENT AT the END of PARS PLANA VITRECTOMY

ACCURACY of DIGITAL INTRAOCULAR PRESSURE MEASUREMENT AT the END of PARS PLANA VITRECTOMY SURGERY

Status

Not yet recruiting

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT06707168

Enrollment

Registered

2024-11-27

Start date

2025-03-01

Completion date

2025-12-31

Last updated

2024-11-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pars Plana Vitrectomy

Keywords

intraocular pressure, pars plana vitrectomy

Brief summary

Intraocular pressure is measured regularly at any and all visits with your eye doctor or optometrist. The purpose of this study is to compare measurements of eye pressure at the end of the surgery, comparing the ability of a gloved finger or sterile cotton-tipped applicator (Q-tip) to accurately measure intraocular pressure against a standardized instrument designed for this purpose.

Interventions

DIAGNOSTIC_TESTDigital palpation

Digital palpation for IOP measurement

DIAGNOSTIC_TESTCotton-tipped applicator (CTA)

Cotton-tipped applicator (CTA) for IOP measurement

Study design

Allocation

RANDOMIZED

Intervention model

SINGLE_GROUP

Primary purpose

DIAGNOSTIC

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

1. All patients undergoing Pars Plana Vitrectomy between June 25, 2024 - and December 30, 2024, will be included. 2. Patients aged 18 years or older 3. Patients able to give informed consent

Exclusion criteria

1. Patients with complicated Pars Plana Vitrectomy (choroidal hemorrhage, retrobulbar hemorrhage) 2. Patients with irregular cornea surface will be excluded (keratoconus, band keratopathy, corneal edema, corneal transplant, cornea scarring) 3. Patients undergoing combined scleral buckling at time of surgery 4. Patients with previous glaucoma filtration surgery (ie. trabeculectomy or tube shunt surgery)

Design outcomes

Primary

Measure	Time frame	Description
Intraocular pressure measurement	From enrolment to end of treatment at 8 weeks	Intraocular pressure accuracy between surgeons' estimate and tonometer IOP measurement.

Secondary

Measure	Time frame	Description
Intraocular pressure measuring agreement	From enrolment to end of treatment at 8 weeks	1. Intraocular pressure surgeon measuring agreement with digital palpation. 2. Intraocular pressure surgeon measuring agreement with short wooden stick cotton swab.

Contacts

Primary ContactKenneth Eng, MD

Kenneth.Eng@sunnybrook.ca416-480-4688

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026