Vaso-occlusive Infarction of the Lateral Orbital Wall With Ipsilateral Temporalis Muscle Ischemia.

An 18-month-old boy with sickle cell disease developed progressive left periorbital edema and temporalis fullness. Imaging revealed two inferotemporal subperiosteal fluid collections and adjacent temporalis muscle thickening. After undergoing an anterior orbitotomy with drainage and biopsy, the patient was diagnosed as having a vaso-occlusive sickle cell crisis involving the lateral orbit. [J Pediatr Ophthalmol Strabismus. 2020;57:e78-e81.].

Bilateral Poorly Differentiated Adenocarcinoma of the Lacrimal Gland With Tumor Regression After Treatment With Pembrolizumab.

An 85-year-old man presented with a 6-month history of worsening left proptosis and painless ophthalmoplegia. Imaging revealed an extensive intraconal and extraconal tumor extending to the level of the optic foramen, as well as the scalp, cheek, and the nasal bridge. Incisional biopsy was consistent with lacrimal gland adenocarcinoma. The patient underwent a left orbital exenteration followed by immunotherapy with pembrolizumab. The treatment was stopped prematurely after 5 cycles due to development of autoimmune colitis. Four months later, the patient developed new contralateral disease in the right orbit and an incisional biopsy again showed lacrimal gland adenocarcinoma. Following the incisional biopsy, no further treatment was administered, but over the ensuing 6 months, there was dramatic spontaneous regression of the tumor both clinically and radiographically. At 28 months, the patient is still alive with relatively stable disease.

A Modified Hughes Flap for Correction of Refractory Cicatricial Lower Lid Retraction With Concomitant Ectropion.

INTRODUCTION: Correction of lower eyelid retraction commonly involves one or more techniques, including recession of the eyelid retractors, spacer grafts, horizontal lid tightening, and midface lifting. However, patients presenting with cicatricial lower lid retraction following prior eyelid surgery often have scarring and concomitant ectropion or entropion that cause unpredictable wound healing, recicatrization, and suboptimal outcomes. The modified Hughes tarsoconjunctival flap is typically used to repair full-thickness eyelid defects. Prior reports describe treating refractory lower lid retraction with a modified Hughes flap placed beneath the tarsus after full-thickness blepharotomy. We present our experience with a novel surgical technique for treating refractory cicatricial lower lid retraction using a modified Hughes flap above the tarsus after excision of the scarred lid margin. METHODS: Three patients were treated using this technique. The upper edge of the lower eyelid and associated scar tissue are excised. A modified Hughes flap is mobilized and secured above the posterior lamellar remnant. A full-thickness skin graft is placed over the flap. The flap is divided 4-5 weeks later. RESULTS: This surgical technique was employed in all 3 cases. All cases were revisional, with 2 having extensive multioperative histories with multiple unsuccessful reconstructions and lid retraction repairs. All patients had improvement in cicatricial eyelid retraction, lagophthalmos, exposure keratopathy, and resolution of concomitant cicatricial ectropion. CONCLUSIONS: The technique of using a modified Hughes flap to reconstruct above the tarsus with excision of the scarred lid margin was effective in correcting refractory cicatricial lower lid retraction. This procedure can be considered in multioperative cases in which traditional techniques for lower lid retraction repair have failed. Reconstructing a new lid margin reduces the risk of recicatrization and suboptimal results.

Accidental lacrimal gland removal during resection of the levator palpebrae superioris muscle.

Accidental removal of the lacrimal gland is a rare complication of ptosis surgery. We report two children who underwent large unilateral levator palpebrae superioris resections (LPSr). After surgery, both patients developed dry eye. Post-operatively, the parents of both patients noticed no tears in the affected eye when their child cried. Computed tomography proved the absence of the lacrimal gland in the operated eye in both patients. Oculoplastic surgeons should pay close attention to the anatomy of the levator muscle and its proximity to surrounding tissues in order to avoid lesions on important orbital structures, including the lacrimal gland, and to avoid the development of long-term dry eye.

Relative Frequencies of Arteritic and Nonarteritic Anterior Ischemic Optic Neuropathy in an Arab Population.

BACKGROUND: To evaluate the relative frequencies of arteritic and nonarteritic anterior ischemic optic neuropathy (AION) in an Arab population and to compare and contrast these findings with known epidemiological data from Caucasian populations. METHODS: A retrospective review of the medical records of all patients diagnosed with AION at the King Khaled Eye Specialist Hospital (KKESH) in Riyadh, Saudi Arabia, between 1997 and 2012. RESULTS: Of 171 patients with AION, 4 had biopsy-proven giant-cell arteritis (GCA). The relative frequencies of arteritic anterior ischemic optic neuropathy (AAION) and nonarteritic anterior ischemic optic neuropathy (NAION) in this Arab cohort were 2.3% and 97.7%, respectively. CONCLUSIONS: The relative frequencies of arteritic anterior ischemic optic neuropathy and nonarteritic anterior ischemic optic neuropathy differ between Arab and North American clinic-based populations, with giant-cell arteritis-related ischemia being much less frequent in Saudi Arabia.

Accidental lacrimal gland removal during resection of the levator palpebrae superioris muscle / Remoção acidental da glândula lacrimal em cirurgia de ressecção do músculo levantador da pálpebra superior

ABSTRACT Accidental removal of the lacrimal gland is a rare complication of ptosis surgery. We report two children who underwent large unilateral levator palpebrae superioris resections (LPSr). After surgery, both patients developed dry eye. Post-operatively, the parents of both patients noticed no tears in the affected eye when their child cried. Computed tomography proved the absence of the lacrimal gland in the operated eye in both patients. Oculoplastic surgeons should pay close attention to the anatomy of the levator muscle and its proximity to surrounding tissues in order to avoid lesions on important orbital structures, including the lacrimal gland, and to avoid the development of long-term dry eye.

RESUMO A remoção acidental da glândula lacrimal é uma complicação rara da cirurgia de ptose. Relatamos duas crianças que foram submetidas à grandes ressecções unilaterais do músculo levantador da pálpebra superior que desenvolveram olho seco após a cirurgia. No pós-operatório, os pais notaram ausência de secreção lacrimal durante o choro no olho operado. Tomografia computadorizada de órbitas comprovou ausência da glândula lacrimal no olho submetido à cirurgia, em ambos os casos. Cirurgiões oculoplásticos devem estar atentos à anatomia do músculo levantador e estruturas relacionadas para evitar lesões em importantes estruturas orbitais como as da glândula lacrimal que podem induzir permanente olho seco.