Mercury Contamination in an Indicator Fish Species from Andean Amazonian Rivers Affected by Petroleum Extraction.

Elevated mercury (Hg) concentrations in fish from Amazonia have been associated with gold-mining, hydroelectric dams and deforestation but few studies consider the role of petroleum extraction. Hg levels were determined in fish samples collected in three river basins in Ecuador and Peru with contrasting petroleum exploitation and land-use characteristics. The non-migratory, piscivorous species, Hoplias malabaricus, was used as a bioindicator.

Effect of orbital decompression on diplopia in thyroid-related orbitopathy.

Purpose: To determine the incidence of new-onset diplopia and evolution of preexisting diplopia in patients with thyroid-related orbitopathy undergoing orbital decompression surgery.

Methods: A retrospective chart review was conducted of patients who had undergone orbital decompression for thyroid-related orbitopathy between 1999 and 2008 in one of the authors' practice (D.J.

Orbital apergillosis treated with retrobulbar amphotericin B.

A 61-year-old male underwent a cardiac transplant for congenital dilated cardiomyopathy. Two months post-transplantation, after a complicated clinical course, he was noted to have progressive proptosis and limitation of motility OD. Computed tomography showed opacification of the right maxillary sinus with the suggestion of a fungus ball and soft tissue infiltration along the floor of the orbit adjacent to the inferior rectus, extending posteriorly to within millimeters of the superior and inferior orbital fissures.

Etiology of tearing: a retrospective analysis of referrals to a tertiary care oculoplastics practice.

Purpose: To determine the etiology of tearing among referrals to a tertiary care ophthalmology practice specializing in oculoplastics.

Methods: A retrospective chart review was conducted of 150 consecutive referrals to our practice for tearing. The main diagnosis was noted in all cases as well as treatment offered and response to therapy.