The intuitive Colorimeter was developed by Professor Arnold Wilkins and the medical research council in the UK. It is used under the direction of an optometrist to logically and sequentially explore colour space to find the optimal precision tint for the relief of perceptual distortions. People who suffer from dyslexia or have difficulty reading should look into whether this solution would be suitable for them.

Retinal photography has been available since 2004 and all patients who are Glaucoma suspects or have diabetes should have an annual visual examination.

Dilated retinal examinations are advised for patients with small pupils, diabetes, any possible pathology and those seeing flashes or floaters.