Assessing patients with low vision
A112
If you do not have sufficient expertise to assess a patient with low vision, you should refer the patient to someone who has. This may be an optometrist or a dispensing optician based in a low vision service, or the local social services department.
A113
You may need to assess the patient's:
- needs. Some patients may have a personal care plan or low vision passport that would assist in this assessment
- visual acuity, including use of distance and near logMAR charts. If these are not available you may be able to use conventional charts to achieve meaningful results
- contrast sensitivity
- glare function
- central visual function using, for example, Amsler charts and appropriate colour vision tests
- visual field. You should:
- repeat field assessments, where necessary and possible, to obtain a meaningful result, and
- be aware of the limitations of static screening equipment particularly in cases of severe sight loss. If you do not have access to a conventional kinetic test, such as Goldmann, you should use confrontation type tests and Amsler charts for central vision to give practical advice to the patient
- binocular and accommodative status, where appropriate, for example in phakic children with low vision.
A114
When you have completed the appropriate assessments you must advise the patient your findings in a way they can understand. 34, 35, 36 This may include using large print, sending as an audio file, Braille, or in an easy read format.
A115
You should pass on relevant information to the low vision team or other appropriate parties, with an explanation of the results.
References
34 Equality Act 2010. [Accessed 18 Nov2020]35 General Optical Council (2016) Standards of Practice for Optometrists and Dispensing Opticians para 2.1. [Accessed 18 Nov 2020]
36 General Optical Council (2019) ~Standards for Optical Businesses para 1.3.1. [Accessed 18 Nov 2020]
See section on Consent.