What is the eye sight criteria for a certificate of vision impairment (CVI)?

The Ophthalmologist uses a combination of both your visual acuity and your field of vision to judge whether you are eligible to be certified, and at which level.

Generally, to be certified as severely sight impaired (blind), your sight has to fall into one of the following categories, while wearing any glasses or contact lenses that you may need:

  • Visual acuity of less than 3 / 60 with a full visual field.
  • Visual acuity between 3 / 60 and 6 / 60 with a severe reduction of field of vision, such as tunnel vision.
  • Visual acuity of 6 / 60 or above but with a very reduced field of vision, especially if a lot of sight is missing in the lower part of the field.

To be certified as sight impaired (partially sighted) your sight has to fall into one of the following categories, while wearing any glasses or contact lenses that you may need:

  • Visual acuity of 3 / 60 to 6 / 60 with a full field of vision.
  • Visual acuity of up to 6 / 24 with a moderate reduction of field of vision or with a central part of vision that is cloudy or blurry.
  • Visual acuity of 6 / 18 or even better if a large part of your field of vision, for example a whole half of your vision, is missing or a lot of your peripheral vision is missing.

For further information on CVIs and certification see What is a certificate of vision impairment (CVI)? and What happens during and eye clinic assessment for a certificate of vision impairment (CVI)?

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