PURPOSE To evaluate the reliability and validity of a portable instrument for measuring macular pigment optical density. METHODS The instrument is small, uses light emitting diodes as light sources and the principles of heterochromatic flicker photometry of comparing foveal and extra-foveal minimum flicker matches. It uses central fixation for the extra-foveal matches, which subjects found ea...

OBJECTIVE This study was to determine the relationship between estimated breeding value and phenotype information after farrowing when juvenile selection was made in candidate pigs without phenotype information. METHODS After collecting phenotypic and genomic information for the total number of piglets born by Landrace pigs, selection accuracy between genomic breeding value estimates using ge...

Congenital disorders of glycosylation are a rare group of metabolic disorders that can result in multiorgan disease. This article describes a novel finding of macular hypoplasia in congenital disorders of glycosylation type Ia.

A rapid portable technique for estimating macular pigment optical density (MPOD) in large populations is described. The new instrument utilises a novel method for setting flicker thresholds which is undemanding for naïve and elderly observers and easily operated by a non-technical person. The method has good repeatability (r = 0.97) and the data are comparable with an optical method based on re...

The study area (Alegria watershed, Basque Country, Northern Spain) considered here is influenced by an important alluvial aquifer that plays a significant role in nitrate pollution from agricultural land use and management practices. Nitrates are transported primarily from the soil to the river through the alluvial aquifer. The agricultural activity covers 75% of the watershed and is located in...

PURPOSE This study evaluated the summed measures of macular pigment optical density (MPOD) spatial distribution and their effects on intraocular scatter using a commercially available device (C-Quant, Oculus, USA). METHODS A customized heterochromatic flicker photometer (cHFP) device was used to measure MPOD spatial distribution across the central 16° using a 1° stimulus. MPOD was calculated ...

[1] Refractivity from clutter (RFC) retrieves the radio frequency refractive conditions along a propagation path by inverting the measured radar sea clutter return. In this paper, a real-time RFC technique is proposed called ‘‘Improved Best Fit’’ (IBF). It is based on finding the environment with best fit to one of many precomputed, modeled radar returns for different environments in a database...

With about twenty cases reported in the literature since 1988, AEPVM is a rare acute disorder. Similar to previously reported cases, this case demonstrates the decrease in vision within weeks to months without corticosteroid therapy.

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Originally received: July 13, 2016. Final revision: December 23, 2016. Accepted: January 5, 2017. Available online: February 14, 2017. Manuscript no. 2016-1470. 1 Sacrocuore Hospital, Verona, Italy. 2 Department of Computer Science, University of Verona, Verona, Italy. 3 Department of Ophthalmology, Sant’Anna Institute, Brescia, Italy. Financial Disclosure(s): The authors have no proprietary or...