Cataract By Rnpedia

Typically, a patient with cataracts experiences painless, gradual loss of vision. Although both eyes may develop at different rates.

Snellen's Test is used to assess visual acuity. It involves reading letters of various sizes from a distance of 20 feet. The test measures how well a person can see details at a specific distance, and the results are expressed as a fraction, with the numerator indicating the distance at which the person is standing and the denominator indicating the distance at which a person with normal vision can see the same details. This test is commonly used in eye exams to determine the clarity of vision and detect any potential vision problems.

Cataract is a condition characterized by the clouding of the lens in the eye, leading to a decrease in vision clarity. This clouding causes light to scatter as it enters the eye, resulting in blurred vision. Therefore, the primary problem in cataract is indeed blurring of vision.

Typically, a patient with cataracts experiences painless, gradual loss of vision. Although both eyes may develop at different rates.

When teaching a patient about medications before discharge, the nurse is acting as an educator. The nurse acts as a manager when performing such activities as scheduling and making patient care assignments. The nurse performs the care giving role when providing direct care, including bathing patients and administering medications and prescribed treatments. The nurse acts as a patient advocate when making the patient’s wishes known to the doctor.

The lens allows light to pass through the pupil and focus light on the retina. The lens does not stimulate the retina, assist with eye movement, or magnify small objects, so answers A, B, and D are incorrect.

Bending to pick up something from the floor would increase intraocular pressure, as would bending to tie his shoes. The client needs to wear eye protection to bed to prevent accidental injury during sleep.

Limiting fluid intake is not an appropriate nursing intervention after cataract extraction. Adequate hydration is important for the overall well-being of the client and to prevent complications such as dehydration. Therefore, instructing the client to limit fluid intake would not be recommended in this case.

The client should avoid straining, lifting heavy objects, and coughing harshly because these activities increase intraocular pressure. Typically, the client is instructed to avoid lifting objects weighing more than 15 lb (7kg) – not 5lb. instruct the client when lying in bed to lie on either the side or back. The client should avoid bright light by wearing sunglasses.

Before cataract removal, the client will have Mydriatic drops instilled to dilate the pupil. This will facilitate removal of the lens. Miotics constrict the pupil and are not used in cataract clients. A laser is not used to smooth and reshape the lens; the diseased lens is removed.

Iridectomy is performed after cataract extraction to prevent secondary glaucoma. Cataract extraction involves removing the cloudy lens from the eye, and this procedure can sometimes disrupt the flow of fluid within the eye, leading to increased intraocular pressure. This increased pressure can cause damage to the optic nerve and result in glaucoma. By performing an iridectomy, a small part of the iris is removed, creating a new pathway for fluid to flow out of the eye and reducing the risk of developing glaucoma.

The client who had cataract should be told to call his MD if he experiences eye pain. Eye pain can be a symptom of complications or infection after cataract surgery. It may indicate inflammation, increased intraocular pressure, or other issues that require medical attention. Therefore, it is important for the client to contact their healthcare provider if they have eye pain after cataract surgery.

The client recovering from cataract surgery should not engage in activities that require bending over or heavy lifting for at least a week after the surgery. Doing laundry involves bending over and may put strain on the eyes, which could lead to complications in the healing process. Therefore, the client's statement of doing laundry instead of going to work indicates a need for additional teaching.

Hyperopia, also known as farsightedness, is a condition where distant objects can be seen clearly, but nearby objects appear blurry. In order to correct this, a convex lens is used. A convex lens is thicker in the middle and thinner at the edges, causing light rays to converge and focus properly on the retina. This helps to improve near vision and correct the blurriness associated with hyperopia.

Presbyopia usually begins in the fifth decade of life, when reading glasses are required to magnify objects.

Enucleation is the correct answer because it refers to the surgical procedure of removing the eyeball. This procedure is typically performed in cases of severe eye injury, advanced eye diseases, or to treat certain types of eye cancer. During enucleation, the entire eyeball is removed from the eye socket, including the muscles and other tissues surrounding it. After the procedure, an artificial eye or ocular prosthesis is often fitted to restore the appearance of the eye. Evisceration, on the other hand, involves removing the contents of the eyeball while leaving the sclera intact, and exenteration refers to the removal of the entire eye along with surrounding tissues. Extraction is not a term used to describe the removal of the eyeball.

The eye shield should be worn at night or when napping, to prevent accidental trauma to the operative eye. Prescription eyedrops, not over-the-counter eyedrops, are ordered for the client. The client might or might not require glasses following cataract surgery. A prescription for medication to control post-operative pain will be needed is incorrect because cataract surgery is pain free.

Presbyopia is an eye disorder that occurs with age and is characterized by a gradual loss of the ability to focus on nearby objects. This condition occurs due to the hardening of the lens in the eye, which makes it more difficult for the eye muscles to adjust and focus on close-up objects. As a result, individuals with presbyopia may experience blurred vision when reading or performing tasks that require near vision. Myopia, on the other hand, refers to nearsightedness, hypertropia is a condition where one eye deviates upward, and presbycusis is age-related hearing loss.

Activities such as rigorous brushing of hair and teeth cause increased intraocular pressure and may lead to hemorrhage in the anterior chamber

A chalazion is a sterile chronic granulomatous inflammation of the meibomian gland. The meibomian glands are located in the eyelids and produce an oily substance that helps lubricate the eyes. When there is a blockage in the gland, the oil cannot be released and builds up, leading to inflammation and the formation of a chalazion. Symptoms of a chalazion include a painless lump or swelling on the eyelid, redness, and sometimes blurred vision. Treatment options include warm compresses, gentle massage, and in some cases, surgical removal.

The correct answer is "When assisting the client during ambulation, the nurse stays beside the client." This is because for a blind person, it is important for the nurse to provide physical support and guidance during ambulation to ensure their safety and prevent falls. The nurse should walk slightly ahead of the client, allowing them to hold onto the nurse's arm or shoulder for support while following their lead. Staying beside the client may not provide adequate support and may increase the risk of accidents.

Pterygium is a condition characterized by the growth of a fleshy tissue on the surface of the eye. It is primarily caused by exposure to dust. Dust particles can irritate the conjunctiva, the thin membrane covering the white part of the eye and the inner surface of the eyelids, leading to the development of a pterygium. The constant irritation and inflammation caused by dust particles can trigger the abnormal growth of tissue. Therefore, exposure to dust is the main factor responsible for the occurrence of pterygium.