Search results
Results From The WOW.Com Content Network
In many cases, frequent computer users develop computer vision syndrome, which is a degenerative eye problem which can result in severely reduced eyesight , blurred vision, overall eye tiredness and even glaucoma. Computer Eye Syndrome is an umbrella term for many problems but the causes of these problems can be easily identified.
Computer vision syndrome (CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time and the eye's muscles being unable to recover from the constant tension required to maintain focus on a close object.
Along with developing esophageal voice, using a speech synthesizer, or undergoing a surgical procedure, the electrolarynx serves as a mode of speech recovery for laryngectomy patients. [ 2 ] [ 3 ] The Voice Quality Symbol for electrolaryngeal phonation in speech is И, approximating the symbol for electricity.
The recurrent laryngeal nerves may be injured as a result of trauma, during surgery, as a result of tumour spread, or due to other means. [16]: 12 Injury to the recurrent laryngeal nerves can result in a weakened voice or loss of voice and cause problems in the respiratory tract.
These conditions result from continuous damage to the laryngeal nerves [4] [3] and often lead to vocal disability. [6] Recurrent laryngeal nerve damage is the most common cause of vocal fold paresis. [4] The RLN is responsible for motor input to the vocal folds. [4] Physicians may also use the term recurrent laryngeal nerve paralysis. [19]
Laryngectomy is the removal of the larynx.In a total laryngectomy, the entire larynx is removed (including the vocal folds, hyoid bone, epiglottis, thyroid and cricoid cartilage and a few tracheal cartilage rings) with the separation of the airway from the mouth, nose and esophagus. [1]
During surgery, attempts are made to preserve as much vocal fold tissue as possible, [3] given that glottal insufficiency (a gap in the vocal folds) is a possible consequence of surgery. [15] Vocal fold tissue can be preserved during surgery by raising a micro-flap, removing the cyst, then laying the flap back down. [ 15 ]
Spasmodic dysphonia, also known as laryngeal dystonia, is a disorder in which the muscles that generate a person's voice go into periods of spasm. [1] [2] This results in breaks or interruptions in the voice, often every few sentences, which can make a person difficult to understand. [1]