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- DictionaryDe·gen·er·a·tion/dəˌjenəˈrāSH(ə)n/
noun
- 1. the state or process of being or becoming degenerate; decline or deterioration: "overgrazing has caused serious degeneration of grassland"
7 hours ago · Myopia, also known as near-sightedness and short-sightedness, [5] is an eye disease [6] [7] [8] where light from distant objects focuses in front of, instead of on, the retina. [1] [2] [7] As a result, distant objects appear blurry while close objects appear normal. [1] Other symptoms may include headaches and eye strain.
7 hours ago · A retinitis pigmentosa operation is a surgical procedure that aims to slow down or halt the progression of vision loss caused by retinitis pigmentosa. The operation involves implanting an electronic device called a retinal prosthesis or bionic eye into the eye to replace the damaged photoreceptor cells.
7 hours ago · Atrophy is a condition where tissues or organs shrink or decrease in size due to a decrease in cell size or number. It commonly occurs in muscles, leading to a loss of muscle mass and strength. This can happen from lack of use, injury, or disease. The process of atrophy consists of two main stages: degeneration and shrinkage, involving one or ...
7 hours ago · For elderly patients, especially those over the age of 80, they often have weakened immunity, degenerative changes in important organ functions, multiple coexisting diseases and decreased reserve and compensatory abilities. These can lead to reduced tolerance for anesthesia and surgery, resulting in an increase of postoperative complications.
7 hours ago · 10. Define descent with modification. Answer: Species arise from a common ancestor through gradual modification over generations due to natural selection acting on existing variations. 11. Give an example to illustrate the concept of natural selection. Answer: The peppered moth case during the Industrial Revolution is a classic example.
1 day ago · Glaucoma can cause irreversible vision loss if left untreated. Traditional treatments for glaucoma include eye drops and oral medications. Glaucoma surgery can improve vision by reducing intraocular pressure. Types of glaucoma surgery include trabeculectomy, tube shunt surgery, and laser surgery. Candidates for glaucoma surgery are those with ...
1 day ago · A broken wrist is a fracture of one or more of the bones in the wrist, most commonly the distal radius. It typically results from a fall onto an outstretched hand and causes pain, swelling, and sometimes deformity. Treatment varies from casting to surgery, depending on fracture severity. Leading consultant trauma and orthopaedic surgeon Mr ...
