Tonic pupil following pars plana vitrectomy and endolaser.
Tonic pupil was observed in a 67 year-old patient following a retinal detachment repair with pars plana vitrectomy, endolaser and silicone oil tamponade performed under retrobulbar anesthesia. The probable location of disturbance is the postganglionic parasympathetic fibers in the short ciliary nerves along their course to the pupil in the suprachoroidal space. A likely explanation for this phenomenon is injury to short ciliary nerves by endolaser treatment.
Ebrahim
Benyamin
B
The Institute of Ophthalmology and Visual Science, New Jersey Medical School (NJMS), Newark, USA.
Frohman
Larry
L
Zarbin
Marco
M
Bhagat
Neelakshi
N