# Commission Decision of 14 November 2012 concerning the technical specification for interoperability relating to the ‘operation and traffic management’ subsystem of the rail system in the European Union and amending Decision 2007/756/EC (notified under document C(2012) 8075) (Text with EEA relevance) (2012/757/EU), Division 4.7.3.2: Vision requirements

Extent: E+W+S+N.I.

aided or unaided distance visual acuity: 0,8 (right eye + left eye – measured separately), minimum of 0,3 for the worse eye,
maximum corrective lenses: hypermetropia + 5 / myopia – 8. The medical doctor may allow values outside this range in exceptional cases and after having sought the opinion of an eye specialist,
intermediate and near vision: sufficient whether aided or unaided,
contact lenses are allowed,
normal colour vision: using a recognised test, such as the Ishihara, completed by another recognised test if required,
vision field: normal (absence of any abnormality affecting the task to be performed),
vision for both eyes: effective,
binocular vision: effective,
contrast sensitivity: good,
absence of progressive eye disease,
lens implants, keratotomies and keratectomies are allowed only on condition that they are checked on a yearly basis or according to a frequency set by the medical doctor.

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Source: https://www.legislation.gov.uk/eudn/2012/757/annex/I/division/4/division/4.7/division/4.7.3/division/4.7.3.2 (the official version)
Page: https://openlegislation.uk/eu-decision-2012-757/annex-I/division-4/division-4.7/division-4.7.3/division-4.7.3.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.