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.

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)

No identifying information will be shared