OVS Announces - December 2015

 

Coming in the December 2015 Optometry & Vision Science


Here are brief highlights.
The online and printed copy will be available early-December.
E-Publication Ahead-of-Print now available for all these articles at
http://journals.lww.com/optvissci

Anthony J. Adams, OD, PhD, FAAO
Editor-in-Chief

 

Increasing Letter Chart Contrast Sensitivity Reliability

The importance of the use of similarly identifiable chart letters is known for clinical tests. Our authors suggest that using only high frequency components in letters for chart clinical research design reduces inter-letter contrast sensitivity differences.

Smart Phone Autorefractor

Our authors found a portable Hartmann-Shack wavefront aberrometer attached to a smart phone (SVOne) enabled an objective assessment of mean spherical refractive error for screening purposes, comparable to retinoscopy, subjective refraction, and 2 other autorefractors.

Portable Autorefractor Prototype

In their clinical evaluation of their novel wavefront sensing portable autorefractor ("Quicksee") against a commercial autorefractor (Grand Seiko WR-5100K), the authors found equivalence in measuring spherical and astigmatic refractive errors. The potential manufacturing cost is reported to be low.

Accommodation Reduced in Vitrectomy

Uneventful monocular pars plana vitrectomy (PPV) in prepresbyopia reduced accommodation at 12 weeks after vitrectomy (compared to the other eye) without observable cataract progression.

Replacement of Lenses Exposed to High UV Radiation?

Our authors consider their study to be the first demonstration that UV radiation of CR39, polyurethane and polycarbonate lenses with various hard and antireflection coatings significantly weakened the lenses in ballistic impact tests.

Lens Implant Changes Pupil Size

The anterior vault design of an Implantable Collamer Lens (ICL) for high myopia affects pupil dynamics. Postoperative pupil diameters were smaller, perhaps related to mechanical contact between ICL and the posterior iris surface.

Distortion Correction for Corneal Tomography

Unfortunately, commercially available optical coherence tomography (OCT) systems (e.g. Visante) suffer from geometric and optical distortions resulting in inaccurate measurement of anterior segment parameters. The authors develop distortion corrections that effectively address this problem for Visante images.

IOP Changes with Health Characteristics

In an impressively large (over 150,000 non-glaucoma participants in their 20s through their 50s) Korean study, our authors show male gender, high systolic blood pressure, diabetic parameters, factors related to obesity, and current smoking status were significantly correlated with increased intraocular pressure.

Toward Evidence-Based Dry Eye Management

Our authors provide an evidence-based review for contemporary clinical diagnosis and care of dry eye.

Common Clinical Features Hide Rare Condition

The authors describe an unusual presentation of Foster Kennedy Syndrome (unilateral optic nerve atrophy with optic nerve edema in the other eye) with optic nerve atrophy and hemiretinal vein occlusion where a comprehensive examination and imaging revealed the diagnosis.

Confocal Microscopy in Endotheliitis

The authors describe an adult case of endotheliitis treated and resolved on biomicroscopy where confocal microscopy detected subclinical inflammation - a surprising finding.

Atypical Morning Glory Syndrome

In a 6 year old, despite normal visual function, neuroimaging revealed ipsilateral carotid and middle cerebral vascular narrowing without associated collateral vessels or cerebral ischemia. The case illustrates the wide phenotype and variability of Morning glory syndrome.