Glaucoma is the leading cause of irreversible blindness in the world. Glaucoma is often associated with elevated intraocular pressure, in which damage to the eye (optic) nerve can lead to loss of vision and even blindness.
A cataract is a clouding of the lens in the eye over time as people age. Cataracts often develop slowly and can affect one or both eyes. The only treatment is to have the effected lens replaced through surgery.
Refractive eye surgery is the term used to describe surgical procedures that correct common vision problems such as nearsightedness, farsightedness, astigmatism and presbyopia. Surgery can eliminate the need for prescription eyeglasses and/or contact lenses.
What is atrial fibrillation?
Atrial fibrillation affects the electrical conduction through the heart muscle. Your heart receives electrical signals in a rhythmic pattern that cause the atria (filling chambers) to collect the blood and the ventricles (pumping chambers) to push the blood out to the body.
What health problems are linked to the thyroid?
In general terms, your thyroid gland can cause health problems when it produces too much or too little thyroid hormone. Hyperthyroidism is when you have too much thyroid hormone being made in the body, and hypothyroidism occurs when there is a lack of thyroid hormone. The thyroid gland can also be involved in the development of lumps. If you think you have issues with your thyroid, you should visit your doctor to have your level of thyroid hormone checked if appropriate.
How effective is the shingles vaccine?
The shingles vaccine can be very effective. It can reduce the risk of getting shingles by 50%, and can also give your further protection from postherpetic neuralgia (a complication that can develop from shingles). Your doctor can talk to you about whether you are a candidate for the shingles vaccination.