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Presbyopia
Presbyopia The eye's gradually decreasing ability to focus on nearby objects. Presbyopia is a normal part of aging and affects virtually everyone, usually becoming noticeable after age 40. People with presbyopia typically hold reading materials at arm's length in order to bring the words into focus. They may experience headaches or eyestrain while reading, viewing a computer screen, or doing close work. Presbyopia can be corrected with reading glasses, bifocal or variable focus lenses, or contact lenses. Using bright, direct light when reading is also helpful. RELATED TERMS-------------------------------------- Presbyopia The eye's gradually decreasing ability to focus on nearby objects. Presbyopia is a normal part of aging and affects virtually everyone, usually becoming noticeable after age 40. People with presbyopia typically hold reading materials at arm's length in order to bring the words into focus. They may experience headaches or eyestrain while reading, viewing a computer screen, or doing close work. Presbyopia can be corrected with reading glasses, bifocal or variable focus lenses, or contact lenses. Using bright, direct light when reading is also helpful. Aging The process of becoming older, a process that is genetically determined and environmentally modulated. SIMILAR TERMS-------------------------------------- Presamine Presamine is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): imipramine hydrochloride. Presbycusis Hearing loss due to old age. Presbyterian Health Center The Presbyterian Health Center is a hospital in West Chester, Pennsylvania, United States. Presbyterian Healthcare Services Presbyterian Healthcare Services is a hospital in Albuquerque, New Mexico (USA). Presbyterian Healthcare System Presbyterian Healthcare System is a hospital in Charlotte, North Carolina (USA). Presbyterian Hospital-Huntersville The Presbyterian Hospital-Huntersville is a hospital in Huntersville, North Carolina, United States. Presbyterian Hospital-Matthews The Presbyterian Hospital-Matthews is a hospital in Matthews, North Carolina, United States. Presbyterian Medical Center-Pa The Presbyterian Medical Center-Pa is a hospital in Philadelphia, Pennsylvania, United States. Prescription A prescription, as is well known, is a physician's order for the preparation and administration of a drug or device for a patient. Prescription drug A drug requiring a prescription, a physician's order. By comparison with an over-the-counter drug. Prescription medicine The written direction for drugs for medicinal use, given by the doctor, dentist and nurse to the patient, for dispensation by the pharmacist. Presentation Health System Presentation Health System is a hospital in Yankton, South Dakota (USA). Pressured speech Speech that is increased in amount, accelerated, and difficult or impossible to interrupt. Usually it is also loud and emphatic. Frequently the person talks without any social stimulation and may continue to talk even though no one is listening. Presynaptic Pertaining to the area on the proximal side of a synaptic cleft. PREVIOUS AND NEXT TERMS-------------------------------------- Pyelonephritis Infection of the kidneys. A severe infection favoured by a slowing in the flow of urine (urinary stasis) between the kidney and bladder, through a long duct called the urethra. This stasis is naturally increased by pregnancy (atonicity of ducts), but the absence of any blockage in the urinary tract or reflex from the bladder and urethras (vesicourethral reflux) should be ascertained. Panic disorder Panic disorder is a condition in which persons experience sudden, severe attacks of anxiety. Symptoms consist of heart palpitations, shortness of breath, sweating, dizziness, upset stomach and fear of dying or losing control. Some patients have such attacks only occasionally, while others may have several attacks a day. Since the attacks are very frightening, many patients start to avoid situations in which the attacks have occurred, such as driving on an expressway or over bridges, shopping in large department stores or malls, etc. Agoraphobia is the term for such avoidance, which in severe cases can lead to being completely housebound. Paresis It is only an impairment of the action of a muscle or a group of muscles (not a total loss of function). Paraplegia Paraplegiai nvolves a loss of sensation and movement in the legs and in part or all of the trunk. This varies according to the level of the injury. Generally, the lower the injury, the less the loss of movement and sensation. Paraplegia usually results from an injury to the spinal cord in the mid and lower back. Post-traumatic stress disorder (PTSD) A syndrome caused by re-experiencing traumatic events while being unaware of or unresponsive to current events or, in other words, a "flashback." A child may experience sleeping problems, nightmares, intrusive thoughts, have difficulty concentrating, self-destructive behavior, hyperactivity or anxiety/panic disorder. Therapy is crucial in managing PTSD. Presbyopia Psychomotor attack A form of epilepsy characterized by periodic behaviour disturbances such as chewing and lip smacking, staring and confusion. In some patients, picking at their clothes, or rubbing their hands or legs may occur. Although a psychomotor seizure may present a strange picture, the person experiencing it is usually unaware of the situation. Phobia An anxiety disorder that is characterized by an intense and, at least on the surface, irrational fear. Pemphigus Vulgaris A serious disease manifesting as large skin and mucosal bullae that burst leaving large painful ulcers; may be fatal. Primary Biliary Cirrhosis A rare form of biliary cirrhosis of unknown etiology in which small intrahepatic bile ducts are destroyed while the major intra- and extrahepatic ducts remain patent; 90 per cent of patients are female; most are middle-aged; it is characterized by chronic cholestasis with pruritus, jaundice, hypercholesterolemia and xanthomas, osteomalacia, and, in the later stages, by portal hypertension and liver failure. Almost all patients have circulating antimitochondrial antibodies. Pruritus Itching. Pruritus can result from drug reaction, food allergy, kidney or liver disease, cancers, parasites, aging or dry skin, contact skin reaction, such as poison ivy, and for unknown reasons. We thank you for using the Medical Glossary to search for Presbyopia. If you have a better definition for Presbyopia than the one presented here, please let us know by making use of the suggest a term option. This definition of Presbyopia may be disputed by other professionals. Our attempt is to provide easy definitions on Presbyopia and any other medical topic for the public at large.
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