Please note that many of the benefits are available whether you are registered as sight impaired or severely sight impaired. However, some councils have criteria meaning that certain benefits are only available if you are registered as severely sight impaired. Please check with your local authority for details.
Blue Badge: https://www.gov.uk/blue-badge-scheme-information-council
Blind Persons Tax Allowance: https://www.gov.uk/blind-persons-allowance
Half price TV licence: https://www.tvlicensing.co.uk/check-if-you-need-one/for-your-home/blindseverely-sight-impaired-aud5
Free postage on items marked or labelled, "Articles for the blind": http://www.royalmail.com/personal/uk-delivery/articles-for-the-blind
Leisure concessions: Concessions are available to people with disabilities, or people receiving certain benefits, for various leisure and recreational activities https://www.rnib.org.uk/living-with-sight-loss/money-and-benefits/leisure-and-travel-concessions/
Disabled person's Railcard: http://www.disabledpersons-railcard.co.uk/
Free bus pass: https://www.gov.uk/apply-for-disabled-bus-pass
Exemption from BT directory enquiry charges: http://www.rnib.org.uk/information-everyday-living-benefits-and-concessions-concessions/free-directory-enquiries-195
Free NHS eye examination by an optometrist. This is also free to anyone aged 60 and over. You may be able to get a voucher towards the cost of glasses (check with your optometrist whether you qualify for a "voucher for complex lenses") https://www.nhs.uk/nhs-services/opticians/free-nhs-eye-tests-and-optical-vouchers/
This list is not exhaustive, for more information, please feel free to contact Daria on 0117 342 9097 or Mary on 0117 342 9098. Alternatively, you can contact the RNIB on 0303 123 9999.