Benign Idiopathic Alternating Anisocoria
AAPA ePoster library. Gonsalves S. 05/17/17; 180535; 193
Stephanie Gonsalves
Stephanie Gonsalves
Login now to access Regular content available to all registered users.
Abstract
Rate & Comment (0)
Case Study Title: Benign Idiopathic Alternating Anisocoria Introduction- Physiological anisocoria is a benign pupillary inequality, which occurs in about 10-20% of healthy persons and may be best defined as pupillary inequality in dim light of at least 0.4mm. Alternating anisocoria is a rare and intriguing variant of this condition in which the pupils dilate in an alternating fashion. Due to its rarity there is no available information on prevalence. Case Description- An eight-year old Caucasian male was observed to have unequal pupil size. He was referred to neuro-ophthalmology for further evaluation. Since the initial observation, the patient's parents have observed that their child's pupils are almost always unequal in size. They have noted phases throughout the day during which the more dilated pupil will change sides from the right to the left with intermittent periods of equality. A complete cycle of alternation of pupil dilation from right to left has been observed throughout the course of an 8-hour day. The pupillary change was not associated to other symptoms or a precipitating event. A review of family photographs prior to the initial observation confirmed that this condition has likely been present since at least February of 2016. His past medical history was significant for an appendectomy in February of 2016 and a recent bout of strep pharyngitis. His review of systems was negative. Neuro-ophthalmologic physical exam revealed his pupils were round and reactive to light with the right pupil approximately 2mm greater than the left. Visual acuity was 20/20 OD and OS without correction. Blurred margins and tenting of the nerve fiber layer were observed at the left optic nerve. The remainder of his physical exam was congruent with the expected exam findings of an eight-year-old male. Neuro-ophthalmologic evaluation and MRI revealed that there was no malignant pathology, and diagnosis of benign idiopathic alternating anisocoria was determined most likely. Outcome- On follow up well-child exam, physical exam findings were consistent with his recent evaluation and diagnosis. The right pupil was noted to be dilated approximately 2mm greater than the left. Since the original observation, the parents have reported noticeable alternating dilation of their child's pupils, stating that the change occurs 1-2 times daily with intervals of pupil equality. Conclusion- Benign idiopathic alternating anisocoria has been described as rare condition...
Case Study Title: Benign Idiopathic Alternating Anisocoria Introduction- Physiological anisocoria is a benign pupillary inequality, which occurs in about 10-20% of healthy persons and may be best defined as pupillary inequality in dim light of at least 0.4mm. Alternating anisocoria is a rare and intriguing variant of this condition in which the pupils dilate in an alternating fashion. Due to its rarity there is no available information on prevalence. Case Description- An eight-year old Caucasian male was observed to have unequal pupil size. He was referred to neuro-ophthalmology for further evaluation. Since the initial observation, the patient's parents have observed that their child's pupils are almost always unequal in size. They have noted phases throughout the day during which the more dilated pupil will change sides from the right to the left with intermittent periods of equality. A complete cycle of alternation of pupil dilation from right to left has been observed throughout the course of an 8-hour day. The pupillary change was not associated to other symptoms or a precipitating event. A review of family photographs prior to the initial observation confirmed that this condition has likely been present since at least February of 2016. His past medical history was significant for an appendectomy in February of 2016 and a recent bout of strep pharyngitis. His review of systems was negative. Neuro-ophthalmologic physical exam revealed his pupils were round and reactive to light with the right pupil approximately 2mm greater than the left. Visual acuity was 20/20 OD and OS without correction. Blurred margins and tenting of the nerve fiber layer were observed at the left optic nerve. The remainder of his physical exam was congruent with the expected exam findings of an eight-year-old male. Neuro-ophthalmologic evaluation and MRI revealed that there was no malignant pathology, and diagnosis of benign idiopathic alternating anisocoria was determined most likely. Outcome- On follow up well-child exam, physical exam findings were consistent with his recent evaluation and diagnosis. The right pupil was noted to be dilated approximately 2mm greater than the left. Since the original observation, the parents have reported noticeable alternating dilation of their child's pupils, stating that the change occurs 1-2 times daily with intervals of pupil equality. Conclusion- Benign idiopathic alternating anisocoria has been described as rare condition...
    This eLearning portal is powered by:
    This eLearning portal is powered by MULTIEPORTAL
Anonymous User Privacy Preferences

Strictly Necessary Cookies (Always Active)

MULTILEARNING platforms and tools hereinafter referred as “MLG SOFTWARE” are provided to you as pure educational platforms/services requiring cookies to operate. In the case of the MLG SOFTWARE, cookies are essential for the Platform to function properly for the provision of education. If these cookies are disabled, a large subset of the functionality provided by the Platform will either be unavailable or cease to work as expected. The MLG SOFTWARE do not capture non-essential activities such as menu items and listings you click on or pages viewed.


Performance Cookies

Performance cookies are used to analyse how visitors use a website in order to provide a better user experience.


Save Settings