Comparison of SITA-Standard Compared to SITA-Fast Visual Fields.

Specificity and Patient Perception of SITA-Standard Compared to SITA-Fast Visual Fields in Patients Suspected of Having Glaucoma

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03192085

Enrollment

150

Registered

2017-06-19

Start date

2017-07-31

Completion date

2018-07-31

Last updated

2017-06-19

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

Conditions

Glaucoma

Brief summary

This study will compare SITA-Standard and SITA-Fast tests in patients newly referred to the glaucoma screening clinic at the RD&E hospital.

Detailed description

This study will compare SITA-Standard and SITA-Fast tests in patients newly referred to the glaucoma screening clinic at the RD&E hospital. In addition to standard care (SITA-Fast) each person who agrees to take part in the trial will undertake one extra visual field test (SITA-Standard). By comparing the results of the two types of visual field test the investigators aim to provide information on which of the two tests is more specific for glaucoma and which test is better tolerated by patients. The investigators anticipate that this study will generate sufficient data to support a grant application for a longitudinal study to examine the relative merits of different visual field tests in patients with glaucoma and those suspected of developing the disease.

Interventions

DIAGNOSTIC_TESTSITA FAST VISUAL FIELD TEST

Diagnostic test for glaucoma

DIAGNOSTIC_TESTSITA STANDARD VISUAL FIELD TEST

Diagnostic test for glaucoma

Study design

Allocation

RANDOMIZED

Intervention model

CROSSOVER

Primary purpose

DIAGNOSTIC

Masking

DOUBLE (Subject, Investigator)

Intervention model description

Randomised crossover trial of diagnostic test with assessment of comparative accuracy - feasibility study.

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Patients over 18 years old attending the West of England Eye Unit Glaucoma Service who have been newly referred for suspected glaucoma.

Exclusion criteria

* 1\. Patients who are unable to perform visual field tests. 2. Patients who are unable to have a full glaucoma assessment. 3. Patients who have undertaken visual field tests in hospital eye departments in the last 2 years.

Design outcomes

Primary

Measure	Time frame	Description
specificity of the visual field tests	1 year	specificity

Secondary

Measure	Time frame	Description
Patients' rating of test difficulty	1 year	number
The number of questions asked (number of presented stimuli).	1 year	number

Contacts

Primary Contactmichael Smith, MBCHB

Michael.smith26@nhs.net+44 (0)1392-406316

Outcome results

None listed

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