Horner’s syndrome

Pupil Examination

Byepsuadmin August 20, 2014June 15, 2022

Subtitles in English for this video can be displayed by clicking on (first button on the bottom right hand corner of the video). The size of the pupillary aperture at any point in time is dependent on a balance between sympathetic tone, parasympathetic tone, the light reflex and the near reflex. The light reflex is an…

Neuro-ophthalmology | Neurological Signs

Byepsuadmin August 20, 2014June 22, 2015

The patients in these two photos show the classical signs of Horner’s syndrome. In the first photo (Figure 1), there is left-sided partial ptosis, miosis and anhidrosis. Whilst in the second photo (Figure 2), there is right-sided ptosis and miosis. Horner’s syndrome is caused by a lesion affecting the sympathetic pathway. This pathway starts as…