Question 1

In reviewing a patient's history, which chronic disorders may affect the eye and vision? Select all that apply.

Accepted Answer

Diabetes mellitus and hypertension can lead to complications such as diabetic retinopathy and hypertensive retinopathy, respectively, affecting eye health and vision.

Question 2

The nurse is preparing an educational program for staff regarding care of the preoperative patient undergoing eye surgery. What does the nurse include about the functions of the ciliary body? Select all that apply.

Accepted Answer

The answer of The nurse is preparing an educational program...

Question 3

By assessing the six cardinal positions of eye gaze, the nurse is able to correlate extraocular movements to function of which cranial nerves? Select all that apply.

Accepted Answer

The answer of By assessing the six cardinal positions of...

Question 4

A 57-year-old patient asks how frequent eye examinations should be completed. What is the nurses' best response?

Accepted Answer

For adults between the ages of 40 and 64, it is generally recommended to have an eye examination every 2 to 4 years. This frequency can vary based on individual health conditions and risks.

Question 5

The nurse is assessing a patient's eye function. On which cranial nerves should the nurse focus during this assessment? Select all that apply.

Accepted Answer

The nurse should focus on CN II (Optic Nerve) for vision, CN III (Oculomotor Nerve) for most eye movements, eyelid elevation, and pupil constriction, CN IV (Trochlear Nerve) for downward and inward eye movements, and CN VI (Abducens Nerve) for lateral eye movement. CN V (Trigeminal Nerve) is primarily responsible for facial sensation and motor functions of the muscles of mastication, not directly involved in eye function.

Question 6

An older adult patient is concerned because their eyes are dry and feel gritty. What is the nurse's best response to this patient's concern?

Accepted Answer

Dry and gritty eyes in older adults can often be attributed to decreased lubrication by the tear glands and conjunctiva, a condition that becomes more common with aging. This is a normal age-related change where the eyes produce fewer tears or the quality of tears changes, leading to symptoms of dryness.

Question 7

The nurse is providing care for a patient with a right eye injury. Because the uvea is damaged, the nurse correlates that this injury involves which eye structures? Select all that apply.

Accepted Answer

The uvea consists of three parts: the iris, choroid, and ciliary body. The iris is the colored part of the eye, the choroid is a layer of blood vessels and connective tissue between the sclera and the retina, and the ciliary body contains the muscles inside the eye that change the shape of the lens for focusing. The sclera is the white outer layer of the eyeball, and the retina is the inner layer that captures light, neither of which are part of the uvea.

Question 8

The nurse is preparing to assess a patient's eyes. Which eye functions are responsible for maintaining clear images of objects? Select all that apply.

Accepted Answer

Refraction, convergence, pupillary constriction, and accommodation are all eye functions responsible for maintaining clear images of objects. Refraction bends light rays to focus them on the retina, convergence aligns both eyes to focus on the same object, pupillary constriction adjusts the amount of light entering the eye, and accommodation changes the lens shape to focus on objects at different distances. Lubrication, while important for eye health, does not directly contribute to the clarity of images.

Question 9

A middle-aged adult is concerned about needing reading glasses. On which eye structure does the nurse focus when explaining this age-related change to the patient?

Accepted Answer

The lens of the eye is responsible for focusing light onto the retina, allowing us to see clearly. As we age, the lens can become less flexible, a condition known as presbyopia, making it more difficult to focus on close objects. This is why middle-aged adults often need reading glasses.

Question 10

The nurse teaches a patient the importance of wearing sunglasses when outside to decrease the risk of which disorder?

Accepted Answer

Wearing sunglasses can help protect the eyes from UV light exposure, which is a risk factor for the development of cataracts.

Quiz 45: Assessment of Visual Function