Screening methods used for diabetic retinopathy
| Screening tool (method type) | Varieties | Gold standard | Comment |
|---|---|---|---|
| Ophthalmoscope (ophthalmoscopy) | Direct, indirect | Slit-lamp biomicroscopy | An ophthalmoscope allows the user to see into the eye |
| Retinal (fundus) camera (retinal photography) | Digital, 35mm, polaroid; mobile or fixed | Multiple (usually 5 or 7) field stereo photography | These are specialised cameras, used to produce colour photographs of the retina. Digital cameras require less flash and allow the picture to be viewed on a computer screen |