World Sight Foundation Field Machine pilot in glaucoma care

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This exploratory pilot study evaluates how well the World Sight Foundation Field Machine performs in identifying moderate to severe visual field loss among glaucoma patients at a single NHS clinic. It compares WSFFM to the gold-standard HVF analyser, acknowledging it is not expected to be equivalent or non-inferior, but to provide insight into the device’s potential role in resource-limited settings. Participants are adults attending the glaucoma outpatient service who require visual field testing, and the study integrates into routine clinic activities with no additional follow-up beyond the trial visit. The trial seeks to understand practical use, feasibility, and performance in real-world conditions to inform future implementation in lower-income regions. Data will focus on how well WSFFM identifies significant field loss relative to HVF in this setting.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* \- Patients attending glaucoma outpatient clinic
* Patients requiring visual field testing, with plan for "SITA-STANDARD" HVF testing
* Patients 18 years or older and of any gender
* Patients capable of giving informed consent.

Exclusion Criteria:

* \- Patients not requiring visual field testing on that outpatient clinic attendance.
* Patients requiring visual field testing, with plan for "SITA-FAST" or "SITA-FASTER" HVF testing.
* Patients who do not attend their outpatient clinic appointment,
* Patients not able to perform visual field testing (for example due to their visual acuity, physical difficulty in positioning for test duration, or cognitive difficulties in understanding instructions).
* Patients under the age of 18 years old.

Where it's running

• Buckinghamshire Healthcare NHS Trust
  Aylesbury, United Kingdom Recruiting

Study contacts

• Study coordinator: James Cooper
• Email: james.cooper9@nhs.net
• Phone: 07816020305

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.