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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «G»:

  1. Glass eye Glass eye
    Glass eye: 1. A globe of glass that looks like and is intended to replace the eyeball. 2. By extension, a real eye that looks glassy and as lifeless as a poorly crafted glass eye, The first glass eye was made in 1832 by the glassblower Ludwig Muller-Uri in Lauscha, Germany. Although artificial eye...
  2. Glaucoma Glaucoma
    Glaucoma: A common eye condition in which the fluid pressure inside the eyes rises because of slowed fluid drainage from the eye. If untreated, it may damage the optic nerve and other parts of the eye, causing the loss of vision or even blindness. The elderly, African-Americans, and people with fa...
  3. Glaucoma detection Glaucoma detection
    Glaucoma detection: You may know of the "air puff" test or other tests used to measure eye pressure in an eye examination. But, this test alone cannot detect glaucoma. Glaucoma is found most often during an eye examination through dilated pupils after drops are put into the eyes during the...
  4. Glaucoma treatment (laser) Glaucoma treatment (laser)
    Glaucoma treatment (laser): A laser beam of light is focused on the part of the anterior chamber where the fluid leaves the eye. This results in a series of small changes, which makes it easier for fluid to exit the eye. Over time, the effect of laser surgery may wear off. Patients who have this for...
  5. Glaucoma treatment (medical) Glaucoma treatment (medical)
    Glaucoma treatment (medical): Although glaucoma cannot be cured, it can usually be controlled. Medical treatment can be in the form of eyedrops or pills. Some drugs are designed to reduce pressure by slowing the flow of fluid into the eye, while others help to improve fluid drainage. The regular use...
  6. Glaucoma treatment (surgery) Glaucoma treatment (surgery)
    Glaucoma treatment (surgery): Surgery can also help fluid escape from the eye and thereby reduce the pressure. However, surgery is now usually reserved for patients whose pressure cannot be controlled with eyedrops, pills, or laser surgery. ...
  7. Glaucoma, acute angle-closure Glaucoma, acute angle-closure
    Glaucoma, acute angle-closure: Increased pressure in the front chamber (anterior chamber) of the eye due to sudden (acute) blockage of the normal circulation of fluid within the eye. The block takes place at the angle of the anterior chamber formed by its junction of the cornea with the iris. Th...
  8. Glaucoma, angle-closure Glaucoma, angle-closure
    Glaucoma, angle-closure: Increased pressure in the front chamber (anterior chamber) of the eye due to sudden (acute) or slowly progressive (chronic) blockage of the normal circulation of fluid within the eye. The block takes place at the angle of the anterior chamber formed by its junction of th...
  9. Glaucoma, low tension Glaucoma, low tension
    Glaucoma, low tension: See: Glaucoma, normal tension....
  10. Glaucoma, normal pressure Glaucoma, normal pressure
    Glaucoma, normal pressure: See: Glaucoma, normal tension....
  11. Glaucoma, normal tension Glaucoma, normal tension
    Glaucoma, normal tension: Glaucoma in which the intraocular pressure is normal but there is progressive optic nerve damage and visual field loss. Risk factors include a family history of normal tension glaucoma, Japanese ancestry, and a history of heart disease. This disorder is believed due to poo...
  12. Glaucoma, risk factors Glaucoma, risk factors
    Glaucoma, risk factors: if you belong to a high-risk group for glaucoma, have your eyes examined through dilated pupils every 2 years by an eye care professional. High-risk groups include everyone with a family history of glaucoma, everyone over the age of 60 and any Black over the age of 40. (Among...
  13. Glaucoma, symptoms of Glaucoma, symptoms of
    Glaucoma, symptoms of: At first, there are no symptoms. Vision stays normal, and there is no pain. However, as the disease progress, a person with glaucoma may notice the side vision gradually failing. That is, objects in front may still be seen clearly, but objects to the side may be missed. As th...
  14. Gleason score Gleason score
    Gleason score: A grading system for prostate carcinoma devised by Dr. Donald Gleason in 1977 as a method for predicting the behavior of prostate cancer. Tumors with a low Gleason score are less likely to show aggressive behavior and therefore are less likely to have spread outside of the gland to ...
  15. Glenn shunt Glenn shunt
    Glenn shunt: A surgical operation for children born with cyanotic heart disease ("blue babies"), in which a large vein (the superior vena cava) is anastomosed (connected) to the right pulmonary artery so that blood bypasses the malformed right chambers of the heart and is shunted directly into the l...