Glaucoma Riverdale NJ

What You Need to Know about Glaucoma

As we explained in an earlier blog post on glaucoma, “the silent thief of sight,” increased intraocular pressure causes damage to the optic nerve. This nerve is responsible for transmitting images to your brain.

If the condition goes untreated, glaucoma can cause a total loss of vision within a few years. But even with treatment, about 15% of people with glaucoma become blind in at least one eye within 20 years, according to Mayo Clinic.

Types of glaucoma

While the first two conditions are the most frequently experienced, glaucoma can take several forms.

1) Open-angle glaucoma is the most common manifestation of the disease. A partial blockage in the area of tissue located around the base of the cornea causes a gradual increase of pressure in the eye.

2) Angle-closure glaucoma is more common in Asia than in the West. A narrowing in the drain space between the iris and cornea causes a sudden buildup of pressure. People with narrow drainage angles are at increased risk for this type of glaucoma.

3) Normal-tension glaucoma occurs when the optic never is damaged even though eye pressure is normal. As of 2019, the cause of this condition is unknown. It may be due to insufficient blood flow to the nerve caused by arterial plaque or other circulatory conditions.

4) Glaucoma in infants and children is sometimes present at birth. Other times, optic nerve damage develops in the first few years of life. This can be due to drainage blockages or other underlying medical conditions.

5) Pigmentary glaucoma is a condition in which pigment granules from the iris collect in the drainage channels, preventing fluid from exiting the eye.

Who is at risk for glaucoma?

Some segments of the population have an increased chance of developing glaucoma. Because vision loss can occur before any symptoms are noticed, it’s important to be aware of the following risk factors.

  • Are of Asian, African-American, Hispanic, Irish, Russian, Scandinavian, or Inuit descent
  • Have a family history of glaucoma
  • Are over age 60
  • Have poor vision, especially extreme nearsightedness or farsightedness
  • Have corneas that are thin in the center
  • Have certain medical conditions, including heart disease, high blood pressure, diabetes, and sickle cell anemia
  • Take certain corticosteroid medications, such as prednisone, or use eye drops for a long period of time
  • Have had blunt or chemical trauma to the eye
  • Have experienced a severe eye infection
  • Have had eye surgery to correct another condition

Here at Riverdale Vision Care, we offer the latest in imaging technology to help diagnose early glaucoma. Since early detection can prevent vision loss, it’s important that you schedule your yearly eye exam.

What are Ocular Migraines?

If you’ve ever had the frightening experience of temporarily losing vision in one eye, you may be dealing with a rare but concerning condition known as ocular migraines. In this article, we’ll explain what ocular migraines are, what causes them, and what you need to do if you believe that you are suffering from this condition.

Ocular Migraines Explained

Ocular migraines occur when blood flow behind the eye is constricted or the blood vessels behind the eye begin to spasm. The result is a temporary loss of vision in the affected eye that may last for an hour or more. Aside from the fear and discomfort caused by vision loss, ocular migraines can often be a pain-free experience. However, they may also be accompanied by a migraine headache. It’s thought that migraine headaches and ocular migraines both share the same cause, with both conditions being triggered when the brain releases inflammatory substances around the blood vessels and nerves in the patient’s head and brain.

It’s also important to note the distinction between ocular migraines and the less severe visual migraines. While both share similar symptoms, they are sperate conditions. Ocular migraines are considered to be the more serious of the two and tend to affect only one eye for a more extended period – as opposed to visual migraines which affect both eyes and have a shorter duration. With that said, it’s wise to see a doctor if you experience any vision loss, regardless of whether it is caused by an ocular migraine or a visual migraine.

Treating Ocular Migraines

While ocular migraines can be a frightening condition, they are typically relatively easy to treat and prevent using the same medication that is used to prevent migraine headaches. If you experience any form of vision loss – even if it is temporary – it is important to see an eye doctor as soon as possible. Vision loss may mean that you are suffering from ocular migraines or an even more serious condition.

At Riverdale Vision Care, we are experts who are treating and preventing ocular migraines as well as all other vision-related conditions. If you would like to schedule an appointment with one of our skilled physicians, we invite you to contact us today.