Health. https://www.health.com/condition/eye-health/blurry-vision-causes?slide=626ca398-1d36-47ba-b4e9-9518c69a8ecd#626ca398-1d36-47ba-b4e9-9518c69a8ecd
Diakses 12 Februari 2020WebMD. https://www.webmd.com/eye-health/why-is-my-vision-blurry#1
Diakses 12 Februari 2020Healthline. https://www.healthline.com/health/eye-health/sudden-blurred-vision
Diakses 12 Februari 2020 Eye Health Web. https://www.eyehealthweb.com/blurred-vision/
Diakses pada 21 Agustus 2020