Diagnostic Tests for Cornea disorders
Cornea disorders Tests: Book Excerpts
Home Diagnostic Testing
These home medical tests may be relevant to Cornea disorders:
- Vision & Eye Health: Home Testing:
Cornea disorders Diagnosis: Book Excerpts
Diagnostic Tests for Cornea disorders: Online Medical Books
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for more information about the diagnostic tests for Cornea disorders.
Corneal reflex, absent:
History and physical examination
(Handbook of Signs & Symptoms (Third Edition))
If you can't elicit the corneal reflex, look for other signs of trigeminal nerve dysfunction. To test the three sensory portions of the nerve, touch each side of the patient's face on the brow, cheek, and jaw with a cotton wisp, and ask him to compare the sensations.
If you suspect facial nerve involvement, note if the upper face (brow and eyes) and lower face (cheek, mouth, and chin) are weak bilaterally. Lower motor neuron facial weakness affects the face on the same side as the lesion, whereas upper motor neuron weakness affects the side opposite the lesion — predominantly the lower facial muscles.
Because an absent corneal reflex may signify such progressive neurologic disorders as Guillain-Barré syndrome, ask the patient about associated symptoms — facial pain, dysphagia, and limb weakness.
» READ BOOK EXCERPT ONLINE »
Source: Handbook of Signs & Symptoms (Third Edition), 2006
Corneal reflex, absent:
History and physical examination
(Professional Guide to Signs & Symptoms (Fifth Edition))
If you can’t elicit the corneal reflex, look for other signs of trigeminal nerve dysfunction. To test the three sensory portions of the nerve, touch each side of the patient’s face on the brow, cheek, and jaw with a cotton wisp, and ask him to compare the sensations.
If you suspect facial nerve involvement, determine whether both the upper face (brow and eyes) and lower face (cheek, mouth, and chin) are weak bilaterally. Lower-motor-neuron facial weakness affects the face on the same side as the lesion, whereas upper-motor-neuron weakness affects the side opposite the lesion—predominantly the lower facial muscles.
Because an absent corneal reflex may signify such progressive neurologic disorders as Guillain-Barré syndrome, ask the patient about associated symptoms, such as facial pain, dysphagia, and limb weakness.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Signs & Symptoms (Fifth Edition), 2006
Corneal reflex, absent:
History and physical examination
(Nursing: Interpreting Signs and Symptoms)
If you can't elicit the corneal reflex, look for other signs of trigeminal nerve dysfunction. To test the three sensory portions of the nerve, touch each side of the patient's face on the brow, cheek, and jaw with a cotton wisp, and ask him to compare the sensations.
If you suspect facial nerve involvement, note if the upper face (brow and eyes) and lower face (cheek, mouth, and chin) are weak bilaterally. Lower motor neuron facial weakness affects the face on the same side as the lesion, whereas upper motor neuron weakness affects the side opposite the lesion—predominantly the lower facial muscles.
Because an absent corneal reflex may signify such progressive neurologic disorders as Guillain-Barré syndrome, ask the patient about associated symptoms—facial pain, dysphagia, and limb weakness.
» READ BOOK EXCERPT ONLINE »
Source: Nursing: Interpreting Signs and Symptoms, 2007
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