The forms on which you have to apply for indefinite leave to remain in the UK can be found on the GOV.uk website. This page will lead you through a series of questions about your immigration status and will tell you which form you need.
From Eyeos: eyeOS is an Open Source Web Desktop Environment, commonly known as Web Operating System (Web OS) or Web Office. eyeOS is Open Source Software. The basic System comes with some office and PIM applications, and the complete eyeOS software database can be found at eyeApps and in the public server.
OD (Oculus Dextrus) means right eye. OS (Oculus Sinister) means left eye. For those patients who have no astigmatism (spherical eyes) and do not require a multifocal or prism, there will be one number for each eye. This number is known as the sphere portion of the prescription. The farther away from zero this number is, the worse your eyesight is.