Affiliations: Consultation of Ophthalmology, Hôpital
Européen Georges Pompidou, Assistance Publique – Hôpitaux de
Paris, 20, Rue Leblanc, 75015 Paris, France | Department of Radiology, Hôpital Européen
Georges Pompidou, Assistance Publique – Hôpitaux de Paris, 20, Rue
Leblanc, 75015 Paris, France | Department of Internal Medicine, Hôtel Dieu de
Paris, Assistance Publique – Hôpitaux de Paris, 1, Place du Parvis
Notre Dame, 75004 Paris, France | Department of Ophthalmology, Hôpital Necker
– Enfants Malades, Assistance Publique – Hôpitaux de Paris,
149, Rue de Sèvres, 75015 Paris, France
Abstract: Background: The reversed clock phenomenon results in the
transposition of objects from one side to another. Its major manifestation
consists in the reversal of clock numbers in clock-drawing test. It could be
due to a stroke disrupting attentional cerebral network. This phenomenon
usually regresses in a few days. Objective: To report a case of reversed clock phenomenon with
disorders of space representation that did not regress spontaneously. Design: Case report. Patient: A 67 year-old woman was referred due to headaches
associated with gait disorder, visual field deficit and disturbance of space
representation. Results: Magnetic resonance imaging demonstrates two right cerebral
infarcts mainly localized in the parieto-occipital region. A week after her
stoke, clinical testing confirms a reversed clock phenomenon. The patient
placed the hands of a clock in the opposite direction of what was specified.
She got lost at home locating rooms in directions opposite to their real ones.
Rehabilitation sessions partially improved these manifestations. Conclusion: Although it usually improves in a few days,
reversed clock phenomenon can persist longer. Rehabilitation sessions based on
localization exercises may be helpful in such situations.
