There are currently eight voucher values. The value of a voucher can range from £42.40 to £233.56, depending on the strength of the lenses you need. If, for clinical reasons, you need tints or prisms in your glasses, the value of the voucher will be increased to reflect this.

The current voucher values are:

Grade A: £42.40 Glasses with single vision lenses:

•  with a spherical power of no more than 6 dioptres and a cylindrical power of no more than 2 dioptres.

Grade B: £64.26 Glasses with single vision lenses:

• with a spherical power more than 6 dioptres but no more than 10 dioptres, and a cylindrical power of no more than 6 dioptres
• with a spherical power less than 10 dioptres and a cylindrical power more than 2 dioptres but no more than 6 dioptres

Grade C: £94.14 Glasses with single vision lenses:

•  with a spherical power of 10 or more dioptres but no more than 14 dioptres, and a cylindrical power of no more than 6 dioptres.

Grade D: £212.40 Glasses with single vision lenses:

• with a spherical power of more than 14 dioptres with any cylindrical power
• with a cylindrical power of more than 6 dioptres with any spherical power

Grade E: £73.10 Glasses with bifocal lenses :

•  with a spherical power of  no more than 6 dioptres, and a cylindrical power of no more than 2 dioptres.

Grade F: £92.72 Glasses with bifocal lenses:

• with a spherical power of more than 6 dioptres but no more than 10 dioptres, and a cylindrical power of no more than 6 dioptres
• with a spherical power of less than 10 dioptres, and a cylindrical power of more than 2 dioptres but no more than 6 dioptres

Grade G: £120.48 Glasses with bifocal lenses:

•  with a spherical power of 10 or more dioptres but no more than 14 dioptres, and a cylindrical power of no more than 6 dioptres.

Grade H: £233.56 Glasses with bifocal lenses:

• with a spherical power of  more than 14 dioptres with any cylindrical power
• with a cylindrical power of more than 6 dioptres with any spherical power

Grade I (HES): £217.58 This category covers glasses prescribed by NHS trusts (hospitals) and that are not fall under any of the above categories (A-H).