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Showing posts from April, 2022

Emphysematous cystitis as a potential marker of severe Crohn's disease - BMC Gastroenterology - BMC Gastroenterology

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A 43 year-old female presented to a community hospital in Yukon, Canada with a 2-month history of bloody diarrhea. On admission a plain radiograph identified a large mediastinal mass. She was subsequently transferred to Vancouver General Hospital (VGH) under the care of Thoracic Surgery. Prior to her transfer she received oral steroids and 5-ASA formulations for 2 days as her initial stool cultures were negative and a diagnosis of inflammatory bowel disease (IBD) was suspected. The patient was an immigrant from Taiwan and had previous episodes of bloody diarrhea with associated abdominal discomfort and fatigue. Her prior symptoms never lasted for more than a month and the most recent episode was 18 months ago when she was still living in Taiwan. She had no previous investigation for her symptoms. She presented to the hospital due to the fact that her symptoms had persisted for 2 months over which she lost 10 kg and developed significant peri

Differential compensatory role of internal astigmatism in school children and adults: The Hong Kong Children Eye Study | Eye - Nature.com

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Abstract Background To compare the prevalence of refractive (RA), corneal (CA), and internal astigmatism (IA) in Hong Kong children and adults and evaluate the role of IA in compensating for total astigmatism and its relations to myopic traits. Methods The Hong Kong Children Eye Study is a population-based cross-sectional study. Totally 3704 school children (mean age 7.5 ± 1.0 years) and 5577 adults (mean age 41.1 ± 7.5 years), who were their parents, were recruited. Cycloplegic and non-cycloplegic refractive cylinders were obtained from children and adults, respectively. Spearman correlation was applied to detect associations between astigmatism, ocular biometrics, refraction, and lens power. Astigmatism compensation factor (CF) was derived from the power vector analysis J0 and J45. Results The prevalence of RA (≤−1.0 D), CA (≥+1.0 D) and IA (≥+1.0 D) was 21.9%, 63.9%, and 9.9% in children, and 30.9%, 39.5%, and 23.7% in adults respectively. The mean RA, CA and IA values in children a

Red Eyes: Symptoms, Causes, and Treatments - Verywell Health

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Red eyes are one of those things that many people experience from time to time. This can be uncomfortable and you may want to get rid of the bloodshot look as soon as possible. First, you need to figure out what may be causing the normally white part of your eye, the sclera , to appear red. Such red eyes can be from conditions that vary from conjunctivitis (pink eye) to things such as dry eye or a burst blood vessel. This article will explore how red eye may correspond to other symptoms, examine various causes, consider treatments and look into other aspects of this common issue. turk_stock_photographer / Getty Images Symptoms of Red Eyes If you have red eyes, finding out what may be going on can come down to other symptoms that you also notice, which may offer clues as to what's going on. Conjunctivitis is one possibility. Besides the red color of the whites of your eyes, other symptoms that you might notice include: Discharg

Macular degeneration vs. retinitis pigmentosa - Medical News Today

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Macular degeneration (MD) and retinitis pigmentosa (RP) are eye diseases that affect the retina, which is the light-sensitive layer of tissue at the back of the eye. Alongside a functioning center called the macula, the retina contains photoreceptors, the optic nerve, and blood vessels. When light hits the retina, the photoreceptors convert the light into electrical signals. The optic nerve sends these signals to the brain, enabling a person to see. A damaged retina due to MD or RP causes varying degrees of vision loss. Whereas MD occurs due to aging, RP is an inherited disease that typically develops in childhood or young adulthood. This article provides an overview of MD and RP, including the links and differences between the two diseases. It also discusses the symptoms and causes of each disease and provides a list of other eye conditions that may cause symptoms similar to those of MD and RP. Below, we look at MD and RP in more detail. Macular degeneration MD is an eye disease that

Red eyes: what can be the causes of conjunctival hyperemia? - Emergency Live International

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Most of the time, the pathologies that cause conjunctival hyperemia are easily diagnosed and resolve themselves in a relatively short time. In other cases, the redness of the eye may depend on injuries, trauma or foreign bodies present in the eye and, more rarely, may indicate various pathologies, even serious ones, such as: acute attacks of glaucoma, uveitis, keratitis, scleritis. What are the pathologies that cause redness in our eyes and which tissues that form the anatomy of the eye can become irritated or inflamed? Red eyes: how to prevent them and when to see an ophthalmologist The varying seriousness and severity of the causes of conjunctival hyperemia necessitates a specialist diagnosis, which is necessary to distinguish between more and less serious pathologies. As a general guideline, however, attention should be paid to periocular hygiene, which helps to avoid the most common irritations. It is therefore inadvisable to touch one's eyes often and to apply c

Chalazion vs. Stye: Symptoms, Causes, and Treatment - Verywell Health

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A chalazion and a stye may look similar, but they are not the same. A chalazion is a red bump on the eyelid that develops when there is a blocked oil gland. A stye (also called a hordeolum ) develops where your eyelashes start or under your eyelid. Bacterial infections usually cause styes. A chalazion or a stye is not usually serious. Discover more about the differences between a chalazion and a stye, including symptoms, causes, diagnosis, treatment, and prevention. Verywell / Jessica Olah Symptoms The bumps caused by chalazia (the plural of chalazion) or styes may both look red and swollen, but there are some differences. With a stye, symptoms include: Crustiness on the eyelid margin The feeling of something in your eye Pain in the affected eyelid A pimple-like appearance A scratchy feeling in the eye Sensitivity to light Swelling that usually goes away after three days Tearing in the affected eye A chalazion sometimes may not