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Ophthalmology 2
Macular degeneration and Acute Vision loss
36
Medical
Professional
08/22/2012

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Cards

Term
Area of the retina about 3 mm temporal to the optic nerve head.
Definition
Macula
Term
Loss of central vision due to age related changes in the macula.
Definition
Age-related macular degeneration
Term
Central depression within macula containing only cones responsible for finest resolution sight.
Definition
Fovea
Term
This is the leading cause of legal blindness in patients over 60.
Definition
Age related macular degeneration
Term
Age related macular degeneration affects ___ of people between the ages 75 and 85.
Definition
28%
Term
Name 3 changes in the retina that occur due to aging and may be linked with ARMD.
Definition
Drusen
Retinal pigment epithelium changes
Weakening of Bruch's membrane
Term
Localized deposits in Bruch's membrane.
Definition
Drusen
Term
The layer between the retinal pigment epithelium and choroid.
Definition
Bruch's membrane
Term
The ____ serves a number of metabolic functions for the photoreceptors, and when it atrophies, photoreceptors lose function.
Definition
Retinal pigment epithelium
Term
Pathologic process that is characterized by drusen and retinal pigment epithelium changes.
Definition
Dry or atrophic macular degeneration
Term
Less common and severe form of dry macular degeneration.
Definition
Geographic atrophy. Can result in total loss of central vision.
Term
Pathologic process characterized by extension of vessels from the choroidal circulation through the weakened Bruch's membrane.
Definition
Wet or neovascular macular degeneration
Term
This is the name of what is formed in wet macular degeneration when choroid vessels pierce through Bruch's membrane.
Definition
Choroidal neovascular membrane, or net.
Term
Visual distortion causing waviness of straight lines.
Definition
Metamorphopsia
Term
Patients with dry macular degeneration may initially notice this visual change.
Definition
Metamorphopsia, apparent waviness of actual straight lines
Term
Patients with wet macular degeneration may notice this visual change.
Definition
Sudden loss of central vision with a central scotoma.
Term
This is an old treatment for wet macular degeneration that is becoming less frequently used.
Definition
Laser treatment aimed at sealing off CNVM.
Term
Name the 2 newest treatments for wet macular degeneration
Definition
Photodynamic therapy with verteporphorin
Vitreal anti-VEGF antibody injection
Term
What is the benefit of anti-VEGF treatment of CNVM?
Definition
It can actually improve vision rather than just slowing visual loss or stabilizing the disease.
Term
What supplemental vitamins may help with ARMD? What special patient population may need to modify this?
Definition
A, E, C, Zinc and Copper
This may actually increase smokers risk
Term
DMV's minimum for driving visual acuity.
Definition
20/40 corrected in best eye.
Term
Big E on eye chart.
Definition
20/200
Term
_____ is a state in which the eye is relaxed and focused on an object more than 6 meters or 20 feet away.
Definition
Emmetropia
Term
A refraction error of the eye in which there is a difference in degree of refraction in different meridians.
Definition
Astigmatism
Term
If a red eye persists or returns after treatment, consider...
Definition
a drug reaction
Term
3 types of cases to refer to ophthalmologists.
Definition
Decreased vision
Cloudy eyes
Pain
Term
Bilateral small pupils that constrict when the patient focuses on a near object, but not when exposed to bright light.
Definition
Argyll Roberston pupil
Term
What is the most frequent cause of a retinal tear?
Definition
Vitreous traction
Term
What demographic is typical for retinal detachment?
Definition
Older people after eye surgery. Also associated with myopia and lattice degeneration
Term
What patient population are the typical people who suffer central retinal artery occlusion?
Definition
People with atherosclerosis, diabetes mellitus, or atrial fibrillation. Risk factors for clotting.
Term
If you suspect this disorder, you may consider pressing on the eye with you hand in a massaging manner.
Definition
Central retinal artery occlusion
Term
What is the major risk factor for the development of central retinal vein occlusion?
Definition
Hypertension. Arteries may close off veins where they cross in the retina.
Term
What is the treatment of choice for optic neuritis?
Definition
IV steroids. Do NOT use oral prednisone.
Term
What is the common demographic that presents with optic neuritis?
Definition
Young women 20 to 40 year old. Strong association with multiple sclerosis.
Term
What is the demographic that typically presents with ischemic arteritic optic neuropathy?
Definition
Older (70s) individuals with giant cell arteritis.
Term
How do you treat ischemic arteritic optic neuropathy? And what are you treating?
Definition
High dose oral steroids
Prevention of damage to contralateral eye. Ipsilateral can rarely be helped at presentation.
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