Opthamologist News


Welcome to the Opthamologist News page (Ophthalmologist News ).

This page is intended as a quick update on whats going on in the world of Opthamology, including ophthalmology studies, news and general articles. Have a browse and see if something catches your eye.

We have also added another  Opthalmology news page, that includes only the latest medical studies and results, so if you are an Opthamologist, then it is also worth a read: Ophthalmology Journal.

For our ‘General Eye Health’ news page, please see: Eye Health.

Enjoy reading.

Opthamologist News:

A 34-year-old patient presented with a right orbito-facial mass since childhood, consistent with a congenital arteriovenous (AV) malformation. Prior to presentation, she had multiple incomplete surgical resections and embolizations with N-butyl acetyl acrylate and Onyx-18. The patient reported gradual, progressive vision loss shortly after Onyx-18 embolization. Five months after embolization, she presented with decreased vision, disfigurement and mechanical ptosis relating to a large subcutaneous mass affecting the medial right upper eyelid and forehead. Significant exam findings included a visual acuity of 20/400 (20/60 prior to embolization), an afferent pupillary defect, and optic disc pallor. MRI and angiography revealed a persistent AV malformation with feeders from the ophthalmic art...

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Posted: February 8, 2016, 5:06 pm
In this review, the authors examine the latest evidence on the roles of gland atrophy and ductal hyperkeratinization in the development of meibomian gland dysfunction. BMC Ophthalmology (Source: Medscape Today Headlines)
Posted: February 8, 2016, 3:36 pm
This devastating manifestation of syphilis infection can result in blindness if not detected and treated early. CDC Expert Commentary (Source: Medscape Today Headlines)
Posted: February 8, 2016, 3:36 pm
SCIENTISTS have been using techniques to perfect the tasty treat in order to help save your sight. (Source: Daily Express - Health)
Posted: February 8, 2016, 2:25 pm
The objective of the present study was to determine if there is a sex-based difference in lifting technique across increasing-load conditions. Eleven male and 14 female participants (n = 25) with no previous history of low back disorder participated in the study. Participants completed freestyle, symmetric lifts of a box with handles from the floor to a table positioned at 50% of their height for five trials under three load conditions (10%, 20%, and 30% of their individual maximum isometric back strength). Joint kinematic data for the ankle, knee, hip, and lumbar and thoracic spine were collected using a two-camera Optotrak motion capture system. Joint angles were calculated using a three-dimensional Euler rotation sequence. Principal component analysis (PCA) and single component recons...

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Posted: February 8, 2016, 12:00 pm
A 'smart' contact lens that can monitor eye pressure in glaucoma patients 24 hours a day has proven effective for identifying which patients are at risk of disease progression. (Source: Health News from Medical News Today)
Posted: February 8, 2016, 7:00 am
In conclusion, the SRK-II formula produced the lowest MAE in average and short eyes and the SRK/T formula produced the lowest MAE in long eyes. The SRK-II has the highest postoperative hyperopic shift in all eyes. The highest postoperative myopic shift is with the Holladay I for average and long eyes and SRK/T for short eyes. (Source: International Ophthalmology)
Posted: February 7, 2016, 11:00 pm
Summary Disruptions to sleep and circadian rhythms have now been recognized as common comorbidities in patients with medical illnesses. We aimed to determine if the diurnal rhythms for rest and activity were disrupted in parallel with the development of diabetic complications. Ninety outpatients in our diabetes clinic who had a body mass index <25 kg m2 wore an actigraph for 7 consecutive days (42 men; mean age 68.7 ± 8.2 years). Patients with neuropsychiatric diseases, liver cirrhosis, renal failure, chronic obstructive pulmonary disease or blindness, or those who performed shiftwork were excluded. We grouped the actigraph recordings into 1‐h periods and counted the number of minutes that showed activity. Stepwise regression analysis showed an association between a diabetic clin...
Posted: February 7, 2016, 11:00 pm
This study involved 19 ERM cases that underwent pars plana vitrectomy (PPV). ERM specimens were obtained from each patient during PPV and immediately fixed in 10 % formalin. Paraffin sections were stained with hematoxylin eosin (HE) and immunohistochemical analysis was performed with glial fibrillary acidic protein (GFAP), Ki-67, CD34, and nestin antibodies. The 19 ERM cases included 11 idiopathic ERM cases and 8 secondary ERM cases i.e., 2 eyes that underwent PPV for retinal detachment and 6 eyes that underwent PPV for proliferative diabetic retinopathy. HE staining showed that some of the idiopathic ERM specimens consisted of internal limiting membrane. In contrast, numerous invasive cells were observed in the secondary ERM specimens compared to the idiopathic ERM specimens. Immunohisto...

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Posted: February 7, 2016, 11:00 pm
Abstract The purpose of this study was to test the measurements of a multifunctional device, the NIDEK OPD-Scan III in terms of repeatability and agreement with retinoscopy and Pentacam in cases with emmetropia, ametropia, and KCN (grade 1–3). We enrolled 170 eyes (40 in each group of emmetropia and ametropia, and 90 in the 3 KCN subgroups). Acquisitions were done twice by a single technician to check the intra class correlation, repeatability index, and precision. To assess agreement, we compared OPD-Scan III with retinoscopy and Pentacam results by two blinded technicians. All device functions had acceptable precision in groups with emmetropia, ametropia, and KCN1, except spherical error in ammetropics (0.97 D). In KCN2, repeatability was acceptable with the refractive fu...
Posted: February 7, 2016, 11:00 pm
Publication date: February 2016 Source:British Journal of Oral and Maxillofacial Surgery, Volume 54, Issue 2 Author(s): Jeong Hong Kim, Se-Hyung Kim, Chan Il Song, Ju Wan Kang A 48-year-old woman presented to the emergency department with swelling and erythema of the right upper eyelid for 4 days. Computed tomography showed a superiorly-based subperiosteal orbital abscess together with paranasal sinusitis. She was managed medically, but symptoms did not improve, so we drained the abscess using image-guided intranasal endoscopy. Her symptoms began to improve 2 days after drainage, and her recovery was uneventful. Drainage of an orbital subperiosteal abscess should be considered if there are ophthalmological symptoms such as visual disturbances, raised intraocular pressure, or proptosi...

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Posted: February 6, 2016, 11:00 pm
We report a randomized, placebo-controlled trial of idebenone at 2000mg/kg/day in 56 Opa1 mutant mice (B6;C3-Opa1Q285STOP ), with RGC dendropathy and visual loss, and 63 wildtype mice. We assessed cellular responses in the retina, brain and liver and RGC morphology, by diolistic labeling, Sholl analysis and quantification of dendritic morphometric features. Vision was assessed by optokinetic responses. ATP levels were raised by 0.57nmol/mg (97.73%, p =0.035) in brain from idebenone-treated Opa1 mutant mice, but in the liver there was an 80.35% (p =0.011) increase in oxidative damage. NQO1 expression in Opa1 mutant mice was reduced in the brain (to 30.5%, p =0.002) but not in retina, and neither expression level was induced by idebenone. ON-center RGCs failed to show major recovery, other t...
Posted: February 6, 2016, 11:00 pm
Conclusions The spherical equivalent obtained with the new experimental system was precise and in good agreement with the classical subjective routine. The algorithm implemented in this new system and its optical configuration has been shown to be a first valid step for spherical error correction in a semiautomated way. (Source: Journal of Optometry)
Posted: February 5, 2016, 11:00 pm
Publication date: Available online 4 February 2016 Source:Neuron Author(s): Nancy Padilla-Coreano, Scott S. Bolkan, Georgia M. Pierce, Dakota R. Blackman, William D. Hardin, Alvaro L. Garcia-Garcia, Timothy J. Spellman, Joshua A. Gordon The ventral hippocampus (vHPC), medial prefrontal cortex (mPFC), and basolateral amygdala (BLA) are each required for the expression of anxiety-like behavior. Yet the role of each individual element of the circuit is unclear. The projection from the vHPC to the mPFC has been implicated in anxiety-related neural synchrony and spatial representations of aversion. The role of this projection was examined using multi-site neural recordings combined with optogenetic terminal inhibition. Inhibition of vHPC input to the mPFC disrupted anxiety and ...
Posted: February 5, 2016, 11:00 pm
People with diabetes are at an increased risk for a wide range of comorbidities and complications. Among them, diabetic retinopathy (DR) remains a leading cause of blindness in the working-age population in the United Kingdom (UK) [1] and other developed countries [2]. Several physiopathological pathways have been proposed in the pathogenesis of DR [3]. Notably, chronic retinal hypoxia and progressive retinal ischaemia have been shown to trigger the development of DR [4]. Although poor glycaemic control is a known determinant of DR [5], other modifiable factors are likely to play a role in its pathogenesis and should be identified. (Source: Primary Care Diabetes)
Posted: February 5, 2016, 11:00 pm
The discovery of graphene and its unique properties has inspired researchers to try to invent other two-dimensional (2D) materials. After considerable research effort, a distinct “beyond graphene” domain has been established, comprising the library of non-graphene 2D materials. It is significant that some 2D non-graphene materials possess solid advantages over their predecessor, such as having a direct band gap, and therefore are highly promising for a number of applications. These applications are not limited to nano- and opto-electronics, but have a strong potential in biosensing technologies, as one example. However, since most of the 2D non-graphene materials have been newly discovered, most of the research efforts are concentrated on material synthesis and the investigation of the...

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Posted: February 5, 2016, 11:00 pm
In General Accident Insurance, loss of sight in one eye is assessed as giving a 25 % reduction in earning capacity. This does not exclude the possibility that a greater reduction in earning capacity can be assessed for this eye. The ophthalmological situ... (Source: SafetyLit)
Posted: February 5, 2016, 8:19 pm
[Abstract unavailable] Language: de... (Source: SafetyLit)
Posted: February 5, 2016, 8:19 pm
Purpose of review: The purpose of this article is to review the current status of cannabis in the treatment of glaucoma, including the greater availability of marijuana in the USA. Recent findings: The potency of marijuana, as measured by the concentration of Δ9-tetrahydrocannabinol, has increased from ∼2 to 3% in the 1970s to ∼20% today. Many US states have passed laws allowing either medicinal or recreational use of marijuana. Summary: The pharmacology of marijuana and its effect on intraocular pressure has not changed since the research in the 1970s and 1980s. Marijuana is an effective ocular hypotensive agent. However, cardiovascular and neurological effects are observed at the same dose, and may theoretically reduce the beneficial effect of lowering intraocular pressure by redu...
Posted: February 5, 2016, 3:04 pm
No abstract available (Source: Current Opinion in Ophthalmology)
Posted: February 5, 2016, 3:04 pm

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