Orbital manifestations of granulomatosis with polyangiitis: 12-year experience in Mexico City.

Purpose: To present the clinical picture and radiological characteristics of orbital manifestations of granulomatosis with polyangiitis in a Mexican hospital and compare them with worldwide literature.

Methods: Retrospective, observational study from January 2007 to January 2019. An electronic file review was performed.

Management of Ocular Surface Squamous Neoplasia with Topical and Intralesional Interferon Alpha 2B in Mexicans.

Introduction: Ocular surface squamous neoplasia (OSSN) is the most common nonpigmented ocular surface neoplasm and it can originate from the conjunctiva and/ or corneal epithelium. Since the rate of recurrence after surgical excision is high, chemotherapeutic and immunotherapeutic agents such as interferon alpha-2b (IFN α-2b) have been used for its treatment.

Objective: Our objective is to describe the demographic variables of patients with OSSN treated with IFN α-2b and to describe the outcomes of its use in Mexican patients, treated between 2011 and 2017 at Instituto de Oftalmología Fundación Conde de Valenciana.

Eyelash hair transplantation with strip composite eyebrow graft: an enhancing technique in tarsoconjunctival flap eyelid reconstruction procedure.

: To describe and evaluate the eyelash transplantation with strip composite eyebrow graft to improve eyelid anatomy in tarsoconjunctival flap eyelid reconstruction procedure. : Twenty two patients with eyelid tumors managed by local excision and reconstruction using tarsoconjunctival flap reconstruction procedure were included. Eyelash graft was performed during flap division by harvesting a graft from the eyebrow and creating a recipient pocket in the receptor eyelid.

Alveolar soft part sarcoma of the orbit, a case report of a rare tumor.

Background: Alveolar Soft Part Sarcoma is a rare malignant tumor of uncertain histogenesis, representing 0.5-1% of all soft tissue tumors. It occurs predominantly in head and neck regions, especially the orbit and the tongue, in infants, causing no specific symptoms for an extended period of time.

Congenital upper eyelids ectropion in Down's syndrome.

Congenital bilateral ectropion of the upper eyelids is a rare, benign condition reported in ophthalmic literature. It is more frequently associated with Down's syndrome, ichthyosis, and sporadic cases in newborns from black population. We report three cases of congenital bilateral upper eyelid ectropion associated with Down's syndrome.

[Periocular foreign body: Two clinical cases with different management short title: periocular foreign body].

Background: In many cases, the presence of periocular foreign bodies continues to be a diagnostic challenge and a dilemma regarding their management in most cases. The key lies in the type of material of the foreign body and its location in the orbit to determine its management.

Clinical Cases: We present two cases of periocular foreign body; a description of the clinical presentation and their treatment are given in each case.

Characterization of expansion mutations in a large cohort of Mexican patients with oculopharyngeal muscular dystrophy (OPMD).

Oculopharyngeal muscular dystrophy (OPMD) is an autosomal-dominant, adult-onset disorder defined by blepharoptosis, dysphagia, and proximal muscle weakness. OPMD arises from heterozygous expansions of a trinucleotide (GCN) tract situated at the 5' region of the polyadenylate RNA binding protein 1 () gene. The frequency of a particular (GCN) expansion in a given population of patients with OPMD is largely influenced by the occurrence of founder mutations.

Orbital positron emission tomography/computed tomography (PET/CT) imaging findings in Graves ophthalmopathy.

Background: We aimed to describe orbital positron emission tomography/computed tomography (PET/CT) imaging findings, both structural and metabolic, in different clinical stages of Graves ophthalmopathy (GO). This prospective, observational, cross-sectional study examined 32 eyes of 16 patients with GO.

Methods: Patients were assessed with a complete ophthalmological evaluation and assigned a VISA classification for GO.

18-Fluorodeoxyglucose Uptake by Positron Emission Tomography in Extraocular Muscles of Patients with and without Graves' Ophthalmology.

Objective. To compare 18-fluorodeoxyglucose (FDG) uptake by positron emission tomography (PET) in extraocular muscles (EOMs) of patients with Graves' ophthalmopathy (GO) versus patients without GO. Design.

A permanent and reversible procedure to block tear drainage for the treatment of dry eye.

Purpose: To describe a technique of canalicular ligation and report observations on 59 consecutive surgeries.

Methods: Retrospective, non-comparative case series of canalicular ligation by 3 surgeons over a 7-year period.

Results: Fifty-nine eyelids of 29 patients (2 men and 27 women) underwent canalicular ligation for the treatment of severe dry eyes.

Effects of lacrimal occlusion with collagen and silicone plugs on patients with conjunctivitis associated with dry eye.

Purpose: To determine whether canalicular occlusion with collagen and silicone plugs reduces the severity of symptoms in patients with conjunctivitis secondary to dry eye.

Methods: This was a prospective, randomized, double-masked study conducted at a single center in Mexico, in which 61 patients with dry eye/conjunctivitis were assigned to progressive lacrimal occlusion with collagen and silicone plugs or a sham procedural group. Outcome variables included total and individual dry eye and conjunctivitis symptom scores, moisturizing agent usage, best-corrected visual acuity, ocular comfort level, visual performance, corneal/conjunctival fluorescein staining, and incidence of adverse events.