A Patient's Snellen Chart Findings Are 20/60

question 26

Multiple Choice

A patient's Snellen chart findings are 20/60.How should the nurse explain this finding to the patient?

• A) "Your vision is better than normal."
• B) "You must be at 60 feet to see what normal vision sees at 20 feet."
• C) "You must be at 20 feet to see what normal vision sees at 60 feet."
• D) "You are considered legally blind, even though with prescription glasses you'll be able to see."

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Definitions:

Action Potentials

Electrical impulses that travel along the membrane of nerve cells, allowing them to communicate with other cells.

Presynaptic Terminals

The end points of nerve cells (neurons) where neurotransmitters are released to transmit signals to other neurons or muscles.

IPSP

Inhibitory postsynaptic potential; a synaptic potential that makes a postsynaptic neuron less likely to generate an action potential.

Hyperpolarizes

The process of increasing the negative charge within a neuron beyond its resting potential, making it less likely to fire an action potential.