This is an image to demonstrate visual 'crowding' and test peripheral vision. Ensure that the red dot in the centre of the image is at eye level and focus on it. While holding your focus on the red ...

There are typically no visual changes in the initial stages of glaucoma. As damage occurs to the optic nerve, people may develop blind spots in their peripheral visual field. Some can see halos and ...

In the specialized fields of ophthalmologyand optometry, doctors measure sight by having you focus on a central point while keeping your head still. You’ll also be able to see above and below the ...

Please provide your email address to receive an email when new articles are posted on . An internet-based contrast sensitivity measurement tool can help patients self-monitor vision at home, alerting ...