Some people may find it easier to view pages with the images removed or overlaid with a colour filter.
You could also try the contrast control to the right hand side of this page ” Toggle Contrast”
The following resources are available on the internet for free, although BAND Ltd cannot guarantee their content or effectiveness.
http://colorfilter.wickline.org/
http://webanywhere.cs.washington.edu/beta/index.php?locale=en