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Ophthalmic Technician Exam Questions And 100% Correct Answers
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Ophthalmic Technician Exam Questions And 100% Correct Answers...
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Ophthalmic Technician Exam Questions And100% Correct Answers
What is the retina? - Light-sensitive tissue in the back of the eye
The sensory membrane lining most of the posterior chamber of the eye
What does one layer of the retina contain?
What does this layer function as? - Rods and cones
serves as the indirect tool of vision which receives the image formed by the lens and
transforms it into chemical and nervous signals which reach the brain by the optic nerve
What is the macula? -Answer the part of the retina that's responsible for your central
vision, allowing you to see fine details clearly
What is the optic nerve? -Answer the largest sensory nerve of the eye
transmits impulses to the brain from the retina
What is the choroid? -Answer the pigmented vascular layer of the eyeball between the
retina and the sclera
What are the rods and cones? -Answer photoreceptors contained in the retina
, What do rods do? -Answer peripheral and night vision
contain only one type of light-sensitive pigment
What do cones bring into play? -Answer the ability to see during day, in color and in
detail
What is AMD? -Answer deterioration or breakdown of the eye's macula
What is the most common type of AMD?
What percent of people with AMD have this type?
What happens with this type? -Answer Dry AMD
90%
There is an actual break or thinning in the layer of RPE in the macula
What is the less common type of AMD?
What happens with this type? -Answer Wet AMD
Abnormal blood vessels behind the retina start to grow underneath the macula
These blood vessels often leak blood and fluid, damaging or killing light-sensitive cells
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