A nurse is caring for a client who reports a decrease in central vision. The nurse should identify that this is a manifestation of which of the following visual impairments?

Choice A reason: This is incorrect because the nurse should not include this in the postoperative education to the client. The client should not drive home after glaucoma surgery, as they will have reduced vision and increased sensitivity to light in the operated eye. The nurse should advise the client to arrange for someone else to drive them home.

Choice B reason: This is incorrect because the nurse should not include this in the postoperative education to the client. The client should not lie on the right side when going to bed, as this can put pressure on the operated eye and increase the risk of bleeding or infection. The nurse should advise the client to sleep on their back or on their left side.

Choice C reason: This is correct because the nurse should include this in the postoperative education to
the client. The client should report flashing lights, as this can indicate a complication such as retinal detachment or vitreous hemorrhage. The nurse should instruct the client to call the provider immediately if they see flashing lights.

Choice D reason: This is incorrect because the nurse should not include this in the postoperative education to the client. The client should not nap on their left side when they get home, as this can cause fluid accumulation and increased intraocular pressure in the operated eye. The nurse should advise the client to elevate their head at least 30 degrees when resting.

Choice E reason: This is correct because the nurse should include this in the postoperative education to
the client. The client should avoid housework like vacuuming, as this can cause bending, lifting, or straining that can increase intraocular pressure and affect wound healing. The nurse should advise the client to limit physical activity and follow the provider's instructions on when to resume normal activities.

Choice F reason: This is correct because the nurse should include this in the postoperative education to
the client. The client may see flashes of light in the operated eye, as this is a normal phenomenon caused by stimulation of the retina by gas bubbles or fluid shifts. The nurse should reassure the client that flashes of light are normal and will subside over time.

Choice A Reason: Culture is not a diagnostic test that uses an ultraviolet light source, but a laboratory test that involves growing microorganisms from a sample of body fluid or tissue. Culture can help identify the type and sensitivity of the infection-causing agent.

Choice B Reason: KOH is not a diagnostic test that uses an ultraviolet light source, but a chemical test that involves applying potassium hydroxide to a sample of skin, hair, or nail. KOH can help diagnose fungal infections by dissolving the keratin and revealing the fungal elements under a microscope.

Choice C Reason: Diascopy is not a diagnostic test that uses an ultraviolet light source, but a physical test that involves applying pressure to a lesion with a glass slide or lens. Diascopy can help differentiate between blanchable and non-blanchable lesions, such as erythema or petechiae.

Choice D Reason: Wood's is a diagnostic test that uses an ultraviolet light source, also known as a Wood's lamp or black light. Wood's can help observe color changes to the skin that are not visible under normal light, such as fluorescence or hypopigmentation. Wood's can help diagnose conditions such as tinea capitis, vitiligo, or erythrasma.