Which of the refractive state belong to with-the-rule astigmatism?
A. –0.50DS/ +1.50DC x 90°
B. -2.50DC×110°
C. -0.75DS/ -1.00DC×160°
D. +2.25DS/ +2.75DC×145°
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Which spectacles may be chosen for correction of refractive error?
A. Bandage contact lens
B. Spherical lens
C. Prisms
D. Cylindrical lens
Patients with astigmatism may complain about
A. Blurred vision
B. Distorted vision
C. Visual strain
Double vision
Refractive Errorcontains
A. Myopia
B. Hyperopia
C. Astigmatism
D. Presbyopia
Which of the following statements regarding the management of bacterial orbital cellulitis is NOT correct?
A. During hospitalization, some tests should be performed, such as white cell count, blood culture, CT of the orbit, and a biopsy is always needed.
B. Orbital CT is particularly useful to exclude a subperiosteal abscess.
C. We should do a lumbar puncture if meningeal or abnormal neurological signs develop.
D. Surgical intervention in which the infected sinuses and orbital collections are drained should be considered in the following circumstances: lack of response to antibiotics, subperiosteal or intracranial abscess.
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