Eye pain has greatly diminished too. eye strain (so very common, esp if you work on a computer for many hours at a time). Eye pain could also be a sign of arthritis (esp rheumatoid arthritis) - do you have any other aches and pains. Have a full blood count, and ask to check your antibodies to rhuematoid arthritis and lupus.
SSI: Social Security Income: SSI: Strategic Studies Institute (US Army War College) SSI: Sensitive Security Information (US DoT)
SSO (Single Sign On) is when a user logs in to one application and then is automatically signed in to other applications, regardless of platform, technology and domain. An example of SSO is how Google implements login for their products: Gmail, YouTube, Analytics, etc.