Term
|
Definition
- produced by the ciliary body
- production is related to the IOP
- Normal IOP is 10-21 mm
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Term
|
Definition
- ability to focus and refocus
- controlled by ciliary body
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Term
|
Definition
- 20/20 - normal vision
- 20/200 is can see an object from 20 feet away, that a person with 20/20 vision can see from 200 feet away
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Term
|
Definition
- OD - right eye
- OS - left eye
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Term
|
Definition
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Term
|
Definition
- nearsighted
- blurred distance vision
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Term
|
Definition
- farsighted
- have excellent distance vision, but blurry near vision
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Term
|
Definition
- requires patients to use devices, strategies and corrective lenses to perform visual tasks
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Term
|
Definition
- BCVA from 20/400 to no light perception
- absolute blindness - no light perception
- legal blindness - does not exceed 20/200 or 20°> field of view
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Term
| Most common cause of blindness and visual impairment is ? |
|
Definition
- diabetic retinopathy
- macular degeneration
- glaucoma
- cataracts
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Term
|
Definition
- optic nerve damage is r/t the IOP caused by congestion of aqueous humor of the eye
- 2nd leading cause of blindness
- no cure, can be controlled
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Term
|
Definition
- family hx
- thin cornea
- african american
- ↑age
- Diabetes mellitus
- Cardiovascular disease
- migraine syndrome
- myopia
- eye trauma
- corticosteroids
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Term
|
Definition
- blurred vision/halos
- difficulty focusing/adjusting eyes in low light
- loss of peripheral vision
- pain
- HA
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Term
|
Definition
- miotics
- ↑aqueous outflow by constricting ciliary muscle and causing miosis(constriction of the pupil)
- S/E
- pain
- blurry vision
- difficulty seeing in the dark
- pilocarpine(isoptocarpine)
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|
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Term
|
Definition
- ↓production of aqueous humor and ↑ outflow
- S/E
- eye redness/burning
- palpitations, tremors
- ↑BP, HA, anxiety
- dipivefrin(propine)
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Term
|
Definition
- ↓aqueous humor production
- S/E
- bradycardia
- exacerbation of pulmonary disease, Hypotension
- Timolol(timoptics)
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Term
| Alpha Adrenergic agonists ? |
|
Definition
- ↓aqueous humor production
- S/E
- eye redness
- dry mouth/nasal passages
- brimonidine(alphagan)
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Term
|
Definition
- ↑uveoscleral outflow
- S/E
- darkening iris
- conjunctival redness
- rash
- lengenthening of eyelash
- Latanoprost(xalatan)
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Term
|
Definition
- medications that cause pupillary constriction
- mydriatics
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Term
|
Definition
- lens opacity or cloudiness
- leading cause of blindnes in the world
- ↑age by 80 half of people have them
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Term
|
Definition
- aging
- myopia
- retinal detachment/sx
- infection
- toxic factors - smoking, chemical, poisoning
- nutritional
- physical factors
- systemic disease/syndromes
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Term
|
Definition
- blurry vision
- glare sensitivity
- reduced visiual acuity
- myopic shift - to do work close up (fine print)
- diplopia - double vision
- brunescens - color shift to yellow-brown
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Term
|
Definition
- ability of both eyes to focus on one object and fuse the two images into one
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Term
|
Definition
- formation of blisters that cause pain and discomfort on rupturing
- associated with glaucoma
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Term
|
Definition
- separation of the RPE from the sensory layer
- four types
- S/E
- shade or curtain
- cobwebs
- bright flashing lights
- floaters
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Term
|
Definition
- scleral buckle
- pars plana vitrectomy
- pneumatic retinopexy
- transconjunctival suturless vitrectomy
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|
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Term
| Retinal Vascular disorders ? |
|
Definition
- loss of vision can occur from occlusion of a retinal artery or vein
- d/t
- atherosclerosis
- cardiac valvular disease
- venous stasis
- htn
- ↑blood viscosity
- r/f
- diabetes mellitus
- glaucoma
- aging
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Term
|
Definition
- age related macular degeneration
- most common cause of vision loss >60 yrs
- Central vision loss, retain peripheral vision
- two types
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Term
|
Definition
- 85-90% are this type
- outer layers slowly breakdown
- appearence of drusen
- missing letters, words, blank spots
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Term
|
Definition
- abrupt onset
- straight lines appear crooked
- proliferation of abnormal blood vessels growing under the retina
- cause edema / fibrosis
- visual changes occur rapidly
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Term
|
Definition
- ↑age
- smoking
- htn
- obesity
- hyperopia
- family hx
- arthritis
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Term
|
Definition
- ocular pain on exposure to light
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|
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Term
|
Definition
|
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Term
|
Definition
| hemorraghe within the chamber |
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Term
|
Definition
- complete removal of the eyeball and part of the optic nerve
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|
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Term
| sympathetic opthalmia is ? |
|
Definition
- an inflammation created in the uninjured eye by the affected ey that can result in blindness of the uninjured eye
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|
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Term
| Infectious and inflammatory conditions ? |
|
Definition
- dry eye syndrome
- conjunctivitis
- bacterial, viral, allergic, toxic
- Uveitis - iris, ciliary body, choroid
- cellulitis
- tumors
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|
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Term
|
Definition
| surgical removal of the intraocular contents thru an incision in the cornea or sclera |
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Term
|
Definition
| removal of the eyelids, the eye, and various amounts of orbital contents |
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Term
| Carbonic anhydrase inhibitors are ? |
|
Definition
- ↓aqueous humor production
- s/e
- anaphylactic reactions
- electrolyte loss
- depression/lethargy/weight loss
- GI upset
- impotence
- acetazolamide(diamox)
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|
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Term
| Atropine and Scopolamine are ? |
|
Definition
| combination mydriactics ad cycloplegics |
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