Category

0
13
Punctal Plugs in the eye
Punctal plugs are removable silicone plugs that are used to keep tears from draining too quickly out of the eye. They can be inserted by an eye doctor in the office, and are particularly helpful for patients suffering from dry eye. Sometimes used empiriclly after LASIK surgery.
Nicole Chalmers
almost 6 years ago

0
8
Meibomian Gland Dysfunction
Here you can see an eye with prominant meibomian glands. These glands produce oil that is important to keep the tear film from evaporating too quickly. Some people have MGD (meibomian gland dysfunction) and these glands clog up and cause eye irritation (aka. blepharitis).
Nicole Chalmers
almost 6 years ago

0
20
Eyelid Cyst
This video shows a keratin filled inclusion cyst on the eyelid. These are very common and easy to remove by opening with a 30 guage needle and expressing the contents.
Nicole Chalmers
almost 6 years ago

0
41
Chalazion of the eyelid
This video shows a chalazion, a non-infectious bump that can form on the eyelids, and is usually secondary to meibomian gland dysfunction. This particular chalazion is somewhat atypical in that it is draining profusely.
Nicole Chalmers
almost 6 years ago

3
29
Ophthalmology Review: Are babies myopic or hyperopic?
Are babies more hyperopic? Yes, young children have small eyes, so that the image forms behind the retina. However, children are also able accomodate and bring the image forward to compensate for this. This is a review question I recorded for ophthobook.
Nicole Chalmers
almost 6 years ago

4
132
Neuro-Ophthalmology Lecture
This is the first 10 minutes of the neuroophthalmology eye lecture from Ophthobook.com. This lecture covers eye-muscle and ocular movement including the direction of action for all the eye muscles and how to document your exam findings.
Nicole Chalmers
almost 6 years ago

0
50
Watch a woman get a 3D-printed skull
Watch a woman get a 3D-printed skull
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When a Dutch woman with a rare condition needed a new skull, surgeons 3D-printed one for her and put it on her brain like a cap.
An entire human cranium can now be added to the growing list of 3D-printed body parts that includes a fingertip, a hand, prosthetic eyes, arms, a jaw, and even a new foot for a duck.
The plastic skull was made by an Australian firm and placed on the brain of a Dutch woman at Utrecht University's University Medical Center in the Netherlands. The operation, which lasted 23 hours, took place about three months ago, and Dutch News just reported that the patient has returned to work -- plastic noggin and all.
"The patient has her sight back entirely, is symptom-free, is back to work, and it is almost impossible to see that she's ever had surgery," lead neurologist Ben Verweij said in a statement.
Prior to the procedure, the woman's skull was more than three times thicker than a normal skull due to a rare condition. The increased thickness caused the woman's skull to press on her brain, leading to severe headaches and vision loss. Although the report doesn't name the condition, Camurati-Engelmann disease is among the ailments that can cause skull bones to thicken.
"Implants used to be made by hand in the operating theater using a sort of cement which was far from ideal," Verweij said of the procedure, according to Dutch News. "Using 3D printing we can make one to the exact size. This not only has great cosmetic advantages, but patients' brain function often recovers better than using the old method."
Verweiji says that although portions of skulls have been swapped out in the past, this is the first time an entire cranium has been replaced in a patient. And I bet this is the first time you've ever seen a plastic skull get attached to a real live brain. Let me know what you think in the comments below.
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Nicole Chalmers
over 5 years ago

1
30
Emergency Medicine Podcasts
Here’s some of the papers that caught our eye this week here at HEFT EMCAST from the Emergency Medicine and Critical Care world. Many of the papers will form the foundation of our podcasts (subscribe here via iTunes). All papers are hyperlinked to abstracts where available. →
heftemcast.co.uk
almost 6 years ago

11
319
Cranial Nerve Palsies (ophthalmology lecture)
http://www.ophthobook.com A presentation covering common nerve palsies involving the eye. This includes 3rd nerve palsy (oculomotor), 6th nerve palsy (abduce...
YouTube
almost 6 years ago

3
86
The Precise Neurological Exam
Ptosis is the lagging of an eyelid. It has 2 distinct etiologies. Sympathetics going to the eye innervate Muller's muscle, a small muscle that elevates the eyelid. The III cranial nerve also innervates a much larger muscle that elevates the eye lid: the levator palpebrae. Thus, disruption of either will cause ptosis. The ptosis from a III nerve palsy is of greater severity than the ptosis due to a lesion of the sympathetic pathway, due to the size of the muscles innervated. As an aside, the parasympathetics run with the III cranial nerve and are usually affected with an abnormal III cranial nerve.
informatics.med.nyu.edu
almost 6 years ago

0
67
Stanford University develops $90 iPhone accessory to replace ophthalmology kit costing tens of thousands
Researchers at Stanford University’s School of Medicine have developed two low-cost iPhone adapters that provide images of the eye that usually require specialist ophthalmology equipment costing tens of thousands of dollars. The university hopes that it will be useful both for primary care physicians in the U.S. as well as rural medical centres in developing countries.
9to5Mac
over 5 years ago

1
18
Can Simon Stevens save the NHS? A GP's perspective
All eyes are on Simon Stevens as he prepares to take the reins of the NHS, but will he deliver a top-quality, low-cost service, asks Dr Kosta Manis
the Guardian
over 5 years ago

0
21
Smartphone overuse may 'damage' eyes, say opticians
Exclusive music news, big interviews, entertainment, social media trends and video from the news people at BBC Radio 1 and 1Xtra.
BBC News
over 5 years ago

0
5

2
40
Wilson's Disease
Inheritance: autosomal recessive Pathology:copper incorporation into caeruloplasmin in hepatocytes and and its excretion into bile is impaired so copper is deposited into organs (firstly liver, then basal ganglia) Clinical: - Presents in children with liver failure/jaundice - Presents in young adults with CNS signs e.g. ataxia, tremor, dysarthria - Eyes: kayser fleischer rings (gold ring around iris)
almostadoctor.com - free medical student revision notes
over 5 years ago

1
22
Tension Headache
‘Tension headaches’ Account for about 40% of all headaches Symptoms usually bilateral Tight band sensation Pressure behind the eyes May have a throbbing sensation Not sensitive to head movement No feeling of need to vomit
almostadoctor.com - free medical student revision notes
over 5 years ago

1
18

1
41
The Red Eye
There are many causes of a red eye. Below we have outlined the commonest and most important causes. Causes of a red eye: Conjunctivitis Corneal abrasions and ulcers Acute Iritis Scleritis Acute Glaucoma (separate notes available) Subconjunctival haemorrhage Conjunctivitis
almostadoctor.com - free medical student revision notes
over 5 years ago

7
166
Visual Processing in the Retina
In this episode, I talk about the visual processing that happens in the retina, starting with the rods and cones, going to the bipolar cells and then the ganglion cells. Watch to learn how this process works.
YouTube
over 5 years ago