The College of Optometrists (2018) Position statement on blue blocking spectacle lenses [Accessed 26 Nov 2020]

The College of Optometrists (2017) Using Evidence in Practice [Accessed 26 Nov 2020]

The College of Optometrists. Ophthalmic and Physiological Optics (OPO) (2017).The effect of blue‐light blocking spectacle lenses on visual performance, macular health and the sleep‐wake cycle: a systematic review of the literature [Accessed 26 Nov 2020]

Health and Safety Executive information on DSE use [Accessed 19 Nov 2020 ]

Health and Safety Executive information on eyes and eyesight testing for DSE use [Accessed 19 Nov 2020]