Terms of Use

Last updated: 16 February 2026

Welcome to G-Screen. By accessing or using this website and eye health check tool, you agree to be bound by these Terms of Use. If you do not agree to these terms, please do not use G-Screen.

1. About G-Screen

G-Screen is a free online eye health awareness tool developed in Australia. It includes three components:

• Brief survey - Collects information about your year of birth, ethnicity, family history, and eye exam history
• Near visual acuity check - Assesses your ability to see detail at reading distance using Melbourne Rapid Fields (MRF)
• Visual field test - Checks your peripheral vision using Melbourne Rapid Fields (MRF), a TGA-registered perimeter

G-Screen presents your test data and survey responses with educational context to encourage regular eye examinations.

2. Not Medical Advice

You should not rely on G-Screen results to make decisions about your health. Always consult an optometrist, ophthalmologist, or other qualified healthcare provider with any questions you may have regarding a medical condition.

Never disregard professional medical advice or delay seeking it because of something you have read or experienced on G-Screen.

3. No Doctor-Patient Relationship

Use of G-Screen does not create a doctor-patient, therapist-patient, or other healthcare provider relationship between you and the developers of G-Screen, its sponsors, or any associated parties.

G-Screen is provided free of charge. Any fees, charges, or costs associated with consultations, examinations, or treatments by external eye care professionals are entirely between you and that provider. G-Screen does not endorse, guarantee, or assume any responsibility for third-party services, including their availability, quality, or fees.

4. Accuracy and Limitations

G-Screen uses Melbourne Rapid Fields (MRF), a clinically validated and TGA-registered perimetry platform. However, no tool is 100% accurate. G-Screen can miss eye disease. Results may vary based on:

• The accuracy of information you provide
• Correct completion of the screen calibration step
• Your testing environment (lighting, screen size, distance)
• Your attention and compliance during the tests
• Individual variations in visual function
• Whether you are wearing appropriate corrective lenses (reading glasses if needed)

G-Screen does not assign risk levels, categories, or diagnoses. Results are presented for discussion with your eye care professional. Only a comprehensive eye examination by a qualified professional can diagnose eye conditions.

5. Eligibility and Device Requirements

G-Screen is intended for use by adults. The eye health check requires:

• A desktop computer, laptop, or tablet with a screen size of 10 inches or larger
• A dimly lit environment
• Sound enabled for audio instructions
• Webcam access (recommended for eye tracking)
• Reading glasses if you normally use them
• The ability to focus on the screen at a comfortable viewing distance

Smartphones are not supported as the screen size is insufficient for accurate vision testing.

6. Your Responsibilities

When using G-Screen, you agree to:

• Provide accurate information when answering survey questions
• Complete the screen calibration step correctly
• Follow the on-screen and audio instructions carefully
• Use G-Screen in appropriate conditions (device, lighting, environment)
• Wear reading glasses if you normally use them
• Seek professional medical advice if you have concerns about your eye health
• Not use the results as a substitute for professional care

7. Email and SMS Communications

If you choose to send your results to yourself, you may select email delivery (or SMS when available):

• Email: You will receive an email containing a link to view your results.
• SMS (when available): You will receive a text message containing a link to view your results. Standard message rates may apply.

By choosing to send, you consent to receiving the relevant message. Your email address or phone number is passed to a third-party delivery service solely for message delivery and is not stored on our servers. G-Screen does not collect contact details of any third parties.

8. Results Links and Expiry

For your privacy, results links expire 30 days after your eye health check. After expiry, the link will no longer display your individual results. A countdown showing the remaining days is displayed on your results page.

You are responsible for saving or printing your results before the link expires if you wish to retain them. G-Screen is not responsible for any loss of access to results after the expiry period.

De-identified aggregate data may be retained beyond the 30-day period for service improvement and research purposes. This data contains no personally identifiable information and cannot be linked to you.

9. Intellectual Property

G-Screen, including its design, content, and underlying technology, is protected by copyright and other intellectual property rights. The vision tests are powered by Melbourne Rapid Fields technology. You may not copy, modify, distribute, or reverse engineer any part of G-Screen without prior written permission.

10. Disclaimer of Warranties

G-Screen is provided "as is" and "as available" without warranties of any kind, either express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement.

We do not warrant that G-Screen will be uninterrupted, error-free, or free of viruses or other harmful components.

11. Limitation of Liability

To the fullest extent permitted by law, G-Screen, its developers, sponsors, technology partners, and any associated parties shall not be liable for any direct, indirect, incidental, consequential, or punitive damages arising from:

• Your use of or inability to use G-Screen
• Any decisions made based on G-Screen results
• Any delay or failure in seeking professional medical advice
• Any errors or inaccuracies in the results
• Any eye disease or condition that is not detected

12. Indemnification

You agree to indemnify and hold harmless G-Screen, its developers, sponsors, and associated parties from any claims, damages, losses, or expenses arising from your use of G-Screen or violation of these Terms.

13. International Users

G-Screen was developed in Australia. Educational content is informed by Glaucoma Australia guidelines. While G-Screen is available internationally, recommendations may vary by country. G-Screen makes no representation that it meets the regulatory requirements of any country other than Australia. Users outside Australia access the service at their own risk and should:

• Be aware that screening recommendations may differ in their region
• Consult local eye care professionals and guidelines
• Understand that referral pathways and healthcare systems vary by country

14. Governing Law

These Terms of Use are governed by and construed in accordance with the laws of New South Wales, Australia. You agree to submit to the exclusive jurisdiction of the courts of New South Wales, Australia, for the resolution of any disputes arising from these Terms or your use of G-Screen.

15. Changes to Terms

We may update these Terms of Use from time to time. Changes will be posted on this page with an updated "Last updated" date. Your continued use of G-Screen after any changes constitutes acceptance of the new Terms.

16. Contact

If you have questions about these Terms of Use, please contact us at: