I updated to IOS 9.3.5. When I used Safari on my I Phone after the update I noticed a small red glow, lower left hand corner, only in the bottom tool bar that moves a page forward/back. Is this a problem with my screen or is it another issue or not an issue at all. May be coincidental that I noticed it after the update.
MacBook Air (13-inch Mid 2011), Mac OS X (10.7.5)