Developing and Testing a Low Cost Opportunistic Glaucoma Screening Model During Diabetic Retinopathy Screening by Non-physician Graders in Vietnam
Training Group, Sensitivity
About this trial
This is an interventional screening trial for Training Group, Sensitivity focused on measuring Screening, Glaucoma, Non physician graders, Fundus images
Eligibility Criteria
Inclusion Criteria:
Inclusion Criteria of graders:
- A minimum of 42 non-physician and non-optometrist graders (mostly nurses with and without ophthalmic experience) who are currently involved in the Orbis CAFÉ diabetic retinopathy screening in Vietnam.
- 12 Ophthalmologists in Vietnam taking part as DR graders in the CAFÉ project (but not having taken the optic nerve grading course) shall also assess the images.
Inclusion Criteria of optic nerve photos
- Normal optic nerve photos of normal persons (no DR nor glaucoma)
- Optic nerve photos with moderate or advanced glaucoma
- The photos shall all be of gradable quality in the opinion of the investigators, though clarity may not be optimal in order to mimic real world conditions.
Exclusion Criteria:
- Any graders with ophthalmic or optometric background in Vietnam Optic nerve photos suggestive of other ocular diseases (not glaucoma and not diabetes and not optic nerves that potentially can lead to loss of life)
Sites / Locations
- Hanoi Medical University HospitalRecruiting
Arms of the Study
Arm 1
Experimental
To test the effectiveness of a training course to improve graders ability to detect glaucoma
Study design: This is an uncontrolled interventional experimental before and after study in which a minimum of 42 non-physician graders shall be trained to screen for glaucoma using optic nerve photos obtained for diabetic retinopathy (DR) screening in Vietnam. The standard image training set will consist of about 50 normal optic nerve images of people without glaucoma and about 50 images of people with glaucoma, obtained from the on-going ORBIS CAFÉ DR screening programme (in which the graders are working), population-based eye studies in the UK (NICOLA) and the standard Glaucomatous Optic Neuropathy Evaluation (GONE) set of images. (https://gone-project.com/newgone/). The test set contains 60 normal and glaucomatous optic disc images.