Marcus Gunn Phenomenon

Falcão, Inês; Almeida, Filipa

doi:10.1016/j.jpeds.2017.05.031

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…In the present case, blepharoptosis was extremely insidious, and the contraction of the upper eyelid when smiling covered up right eye ptosis. Similar to Marcus Gunn syndrome, impaired innervation is a rare condition in the field of ophthalmology [5]. We assumed that our patient had congenital synkinesis, whose pathogenesis is similar to that of Marcus Gunn syndrome: the only difference is that there is an abnormal association between the levator palpebrae superioris and the movement of mouth or jaws in Marcus Gunn syndrome, while an association was observed between the ptotic eyelid and the nerve impulse of "smile" in our patient.…”

Section: Discussionmentioning

confidence: 62%

Eyelid retraction during smiling in a patient with monocular congenital ptosis: a case report

Zhao,

Fu,

Hao

2024

BMC Ophthalmol

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Background Blepharoptosis is a common symptom in ophthalmology clinic, but eyelid retraction when smiling in a ptosis eye is a rare manifestation. Here we report a novel manifestation that eyelid retraction during smiling in a patient with monocular congenital ptosis. Case description A 10-year-old girl with isolated and mild unilateral congenital ptosis showed eyelid retraction in ptotsis eye when smiling together with a lid lag on downgaze. She didn’t have any systematic and ocular diseases other than myopia and astigmatism.Eyelid retraction during smiling is 5 mm, resulting in a significant difference in the height of bilateral palpebral fissures.As for ptosis, is mild.The margin to reflex distance 1 is 1.0 mm on the right eye(ptosis eye) and 3.0 mm on the left eye. A lid lag of 1.0 mm on downward gaze was noted on the right, she could close her eyes fully while sleeping.The ice pack test, laboratory test for thyroid function, whole-exome sequencing (WES) and magnetic resonance imaging(MRI) of the orbital and ocular motor nerves showed normal results.Her symptoms alleviated after 6 months, with the retraction of the right upper eyelid when smiling was approximately 3 mm, thus the difference in the palpebral fissure height when smiling was smaller than that at the initial presentation. Conclusion Blepharoptosis may accompanied with abnormal innervation like eyelid retraction, this phenomenon can be alleviated with age.The results of the levator muscle function test should be carefully examined to determine whether it is ptosis in an impaired innervation eyelid.

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Section: Discussionmentioning

confidence: 62%

Eyelid retraction during smiling in a patient with monocular congenital ptosis: a case report

Zhao,

Fu,

Hao

2024

BMC Ophthalmol

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“…A total of 88.89% patients in our study had left sided jaw winking ptosis. Left sided predominance in jaw winking is reported in literature 9,16,17 . Qirat et al in a case series on jaw winking ptosis treatment, performed in Karachi, Pakistan, reported 72.7% occurrence on left side 18 .…”

Section: Discussionmentioning

confidence: 99%

Frequency and Associations of Marcus Gunn Phenomenon in Congenital Ptosis

Ahmad

Imtiaz

Iqbal

et al. 2021

PAFMJ

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Objective: To determine the frequency and various associations of Marcus Gunn Phenomenon in patients of congenital ptosis. Study Design: Cross-sectional observational study. Place and Duration of Study: Department of Ophthalmology, Khyber Teaching Hospital, Peshawar, from Jun to Sep 2020. Methodology: A total of 100 patients with congenital ptosis were included. Patients with any cause of secondary or acquired ptosis were excluded. Congenital ptosis was classified as simple and complex. Assessment for ptosis severity, presence of jaw winking ptosis, jaw winking severity, refractive error, amblyopia, strabismus, systemic association and family history for congenital ptosis was performed. Results: Simple congenital ptosis was the most common type overall (84%). A total of 60% patients were males and 40% were females. More than 90% of the patients had severe ptosis. Ninety eight percent cases had onset since birth. No patient had systemic association or positive family history. Nine percent frequency of Marcus Gunn Phenomenon was noted with congenital ptosis. All the patients with Marcus Gunn Phenomenon had unilateral presentation. Left eye was affected predominantly (88.89%). A total of 22.22% of the patients with Marcus Gunn Phenomenon had anisometropic amblyopia. No other ocular or systemic association of Marcus Gunn Phenomenon was observed. Conclusion: Simple congenital ptosis is the most common type of congenital ptosis. The authors report 9% frequency of Marcus Gunn Phenomenon with congenital ptosis and left side effected predominantly. Anisometropic amblyopia was the major ocular association of Marcus Gunn Phenomenon observed.

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“…Given that the patient and her aunt most likely have the same ancestor, MED was exhibited in the adolescent as severe ptosis, whereas MGJW was expressed in her aunt as milder ptosis; double-elevator palsy and MGJW seem to be two extreme examples of the same disease. Surgical options in these cases completely depend on the amount and degree of ptosis and MGJW [ 8 ]. It is a calculative decision to be taken by the surgeon, keeping the patient’s best interest in mind.…”

Section: Discussionmentioning

confidence: 99%

Marcus Gunn Jaw-Winking Phenomenon and Monocular Elevation Deficiency in Association With Congenital Ptosis

Saldanha¹,

Daigavane²

2023

Cureus

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Marcus Gunn jaw winking (MGJW) is an uncommon entity and is associated with congenital ptosis. It is a neurogenic congenital ptosis, which is also called the Marcus Gunn phenomenon, trigeminal-oculomotor synkinesis, or pterygoid-levator synkinesis. Congenital ptosis can be associated with MGJW syndrome, blepharophimosis syndrome, and monocular elevation deficiency (MED). MED is a condition where there is a unilateral congenital abnormality in the elevation of the eye in abduction and adduction. The MGJW phenomenon, congenital ptosis, and double-elevator palsy may be associated with and represent a congenital misdirection syndrome. Together, it can be challenging, and surgery is recommended in severe cases, depending on the degree of ptosis and jaw winking. We hereby want to bring to light one such case of a 14-year-old female with congenital ptosis, MGJW, and double-elevator palsy and want to highlight how both MGJW and double-elevator palsy are both parts of the same disease spectrum and how such cases can be treated.

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Marcus Gunn Phenomenon

Cited by 7 publications

References 6 publications

Eyelid retraction during smiling in a patient with monocular congenital ptosis: a case report

Eyelid retraction during smiling in a patient with monocular congenital ptosis: a case report

Frequency and Associations of Marcus Gunn Phenomenon in Congenital Ptosis

Marcus Gunn Jaw-Winking Phenomenon and Monocular Elevation Deficiency in Association With Congenital Ptosis

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