Bilateral absence of inferior rectus muscle presenting with see-saw nystagmus: a case report

Shee Wen, Chua; Fong Mui HA, Stephanie Evelyn; Ab Ghani, Shuaibah; Mohamad Isa, Mohamad Israk

dc.contributor.author	Shee Wen, Chua
dc.contributor.author	Fong Mui HA, Stephanie Evelyn
dc.contributor.author	Ab Ghani, Shuaibah
dc.contributor.author	Mohamad Isa, Mohamad Israk
dc.date.accessioned	2024-10-24T05:05:03Z
dc.date.available	2024-10-24T05:05:03Z
dc.date.issued	2024-07
dc.identifier.uri	http://oer.ums.edu.my/handle/oer_source_files/2845
dc.description.abstract	Abstract We report a case of vertical rotatory nystagmus in a patient with bilateral absence of inferior rectus muscle. A 5-year-old female patient presented to Ophthalmology outpatient clinic with both eyes noted by parents moving around and unable to focus since birth. Her prenatal, antenatal and postnatal were unremarkable. There is no family history of nystagmus. Best corrected visual acuity of both eyes were 6/24 with low hyperopic astigmatism. Extraocular movement showed vertical rotatory nystagmus especially on upgaze and unable to perform downgaze with no abnormal head posture. Ocular examination showed no abnormality. MRI brain and orbit reported absent of bilateral inferior rectus muscle and no craniofacial abnormality. Conclusion: To the author’s knowledge, this case is the first that presented with see-saw nystagmus as other reported cases might mimic those of inferior rectus paresis. In a high suspicious index, orbital imaging can assist in the diagnosis.	en_US
dc.language.iso	en	en_US
dc.publisher	World Society of Paediatric Ophthalmology and Strabismus	en_US
dc.subject	inferior rectus muscle	en_US
dc.subject	absent	en_US
dc.subject	see-saw nystagmus	en_US
dc.title	Bilateral absence of inferior rectus muscle presenting with see-saw nystagmus: a case report	en_US
dc.type	Article	en_US
dc.resources.url	https://abstracts.wspos.org/paeds-kiosk-e-poster-details?recordId=FNcT1zcz7ZZLGMRGGaeMsP	en_US