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This abstract is assigned to session BOV-ABO: Belgische Orthoptische Vereniging - Association Belge d’Orthoptie

Title

Vision beyond visual acuity

Purpose	To describe aspects of vision beyond measurement of best-corrected visual acuity.
Methods	A review focused mainly on measurement of contrast sensitivity and colour vision tests, illustrated with findings from clinical cases.
Results	Mainly in the early stages, many ocular conditions cause a decrease in contrast sensitivity and/or colour vision, before best-corrected visual acuity declines. Using specific tests, such deficiencies of contrast sensitivity and colour vision can be picked up early.
Conclusion	Contrast sensitivity and colour vision can be evaluated using commonly available tests, and can aid in making a diagnosis in a patient who complains of visual loss whilst best-corrected visual acuity is still within the normal range.

Author 1

Last name	LEROY
Initials	BP
Department	Dept of Ophthalmology & Ctr for Medical Genetics, Ghent University Hospital and Ghent University
City	Ghent