# Schiotz Tonometry

## Overview

This module describes how to test a patient’s intraocular pressure with a Schiotz tonometer.

## Indications

## Contraindications

## Patient information and consent

Always verify your patient’s identity and obtain informed consent before proceeding.

### How do I explain this procedure?

“I need to test the pressure in your eyeball with a small scale. It is important to measure the pressure because if it is too high, you may have glaucoma and you could lose your eyesight if it’s not caught early.”

### What can my patient expect?

“I will put a numbing drop in your eyes. Lie back and I will place the scale on each eyeball and measure the pressure. It will not hurt at all, but it may be a little uncomfortable.”

### What is my patient’s role?

“Try to stay relaxed and keep your eyes open. Keep your eyes focused on one spot on the ceiling and do not look away.”

## Preparation

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### Documentation

### Equipment

## Site & Positioning

The patient should be supine.

## Procedure

Follow medical asepsis without gloves.

## Troubleshooting

My patient has an abnormal test result.

Intraocular pressure exceeding 20 mmHg is abnormal. Refer urgently to an ophthalmologist.

I don’t have a conversion table.

Conversion tables are available on the Internet.

## Risks

## References