TEST BANK FOR LEWIS MEDICAL SURGICAL NURSING 12TH EDITION (HARDING) COMPLETE CHAPTERS 1 TO 69
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MEDICAL SURGICAL NURSING 12TH
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MEDICAL SURGICAL NURSING 12TH
What is intracapsular extraction? - answer-Extraction of entire lens, including the posterior capsule and zonules,
caries postoperative comlications
What is extracapsular extraction - answer-removal of the lens nucleus through an opening in the anterior capsule and a relatively large limbal in...
TEST BANK FOR LEWIS MEDICAL SURGICAL
NURSING 12TH EDITION (HARDING) COMPLETE
CHAPTERS 1 TO 69
What is intracapsular extraction? - answer-Extraction of entire lens,
including the posterior capsule and zonules,
caries postoperative comlications
What is extracapsular extraction - answer-removal of the lens nucleus
through an opening in the anterior capsule and a relatively large limbal
incision, with retention of the integrity of the posterior capsule
What is phacoemulsification - answer-extraction of the lens nucleus
through an opening in the anterior capsule; an ultrasonically driven
needle is used to fragment the nucleus of the cataract; the lens
substrate is then aspirated through a needle port via a small limbal or
scleral incision
What is optic neuritis? - answer-demyelinating inflammation of the
optic nerve that often occurs in association with multiple sclerosis (MS)
and neuromyelitis optica (NMO)
Signs of optic neuritis? - answer-Decreased pupillary light reaction in
the affected eye:
Varying degrees of vision reduction: From mild acuity to complete
vision loss
,Abnormal contrast sensitivity and color vision: In almost all patients
with adult optic neuritis who have decreased visual acuity
Altitudinal field defects
Arcuate defects
Nasal steps
Central scotoma
Cecocentral scotoma
Papillitis (swollen disc): Found in one third of patients with optic
neuritis
Symptoms of optical neuritis? - answer--Preceding viral illness
Rapidly impairmed vision in 1 eye or, less commonly, both eyes:
-Dyschromatopsia (change in color perception) in the affected eye:
sometimes more prominent than decreased vision.
Retro-orbital or ocular pain:
+ vision changes & usually exacerbated by eye movement; the pain
may precede vision loss.
-Injuries to the cornea, such as infection that scars the cornea
keratoconus & kertoglobus - causes bulgin, thinner and shape change.
Some conditions of the eyelid
others that affect cornea or lense
,What is presbyopia? - answer-gradual loss of your eyes' ability to focus
on nearby objects. It's a natural part of aging 40-65yrs
Aetiology of bacterial conjunctivitis? - answer-S.Aureus, Sterp. Pneumo
or H.flu
also STIs chlamydia trachromatis, N.gonnorheae
what is opthalmia neonatorum? - answer-chlamydia or gonorrheae
infection from infected birth canal affecting 20-40%
What is Episcleritis ? - answer-Inflamationof localiased superficial
episclera vascular network, most commonly diffuse (moderate to sever
inflam @1-3 month intervals)
-Nodular/focal episcleritis (can often present with associated systemic
disease)
What are the classification of Allergic conjunctivitis? - answer-type 1
hypersensitivity - seasonal (SAC)
perrenial - chronic (PAC)
Atopic - relates to eczema and athsma
gaint pappilary (GPC)
Limbal and tarsal kertaoconjuctivitis (VKC)
, What is gaint pappilary Allergica conjunctivitis - answer-inner lining of
the eyelid swells and develops small bumps. Known as papillae, these
bumps tend to form after chronic irritation
what can cause a corneal abbration? - answer-Direct trauma
Foreign body between eyelid and conjunctiva
Heat by contact
UV radiation (Arc Eye)
What can cause corneal ulcer? - answer-can be secondary to abrasive
trauma, pentrating injuries or prolonged use of contact lenses
What are dendritic ulcers? - answer-Herpes simplex virus (HSV) keratitis
is the most frequent cause of corneal blindness.
- aggressive treatment -
Symptoms of Dendritic ulcers? - answer-Pain
Photophobia
Blurred vision
Tearing
Redness
- with fluorescein staining and has a delicate branching pattern,
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