Vision Defects and Eye Conditions

Nystagmus is a condition characterized by involuntary, rapid eye movements that can be horizontal, vertical, or circular.

Retinitis Pigmentosa is a genetic disorder that causes progressive loss of vision, typically starting with night blindness and gradually affecting peripheral and central vision.

Photokeratitis is a condition characterized by inflammation of the cornea, the clear outer layer of the eye, due to excessive exposure to UV radiation.

Cataracts are the leading cause of blindness worldwide, accounting for an estimated 51% of all cases.

There are many different types of optometry specialties, including pediatric optometry, geriatric optometry, sports vision, low vision, and ocular disease.

Some of the professional organizations for optometrists include the American Optometric Association (AOA), the American Academy of Optometry (AAO), and the National Board of Examiners in Optometry (NBEO).

Floaters are small, dark spots or lines that appear in your vision. They are caused by tiny particles that float in the vitreous humor, the gel-like substance that fills the back of your eye.

Floaters can be caused by aging, eye injury, inflammation in the eye, or other conditions. As we age, the vitreous humor becomes more liquid and the tiny particles in it can clump together and form floaters. Eye injuries can also cause floaters, as can inflammation in the eye.

Flashes are bright spots of light that appear in your vision. They are caused by the vitreous humor pulling on the retina, the light-sensitive tissue at the back of your eye.

Flashes can be caused by aging, eye injury, inflammation in the eye, or other conditions. As we age, the vitreous humor becomes more liquid and can pull on the retina, causing flashes. Eye injuries can also cause flashes, as can inflammation in the eye.

You should see a doctor about floaters and flashes if they are accompanied by pain, if they are sudden or severe, or if they interfere with your vision. These symptoms can be a sign of a serious eye condition, such as retinal detachment or vitreous hemorrhage.

There is no treatment for floaters and flashes. In most cases, they will go away on their own. However, if they are severe or interfere with your vision, your doctor may recommend surgery or laser therapy.

Asteroid hyalosis is a condition in which the vitreous humor contains small, white or yellow particles. These particles are usually made up of calcium or cholesterol. Asteroid hyalosis is a common condition that usually does not cause any problems.

Posterior vitreous detachment is the most serious type of floater. It occurs when the vitreous humor detaches from the retina. This can cause a sudden increase in the number of floaters and flashes. Posterior vitreous detachment can also lead to retinal tears and detachment, which are serious eye conditions.

Most floaters and flashes will go away on their own. However, some floaters and flashes may require treatment. Floaters and flashes can also lead to serious eye problems, such as retinal detachment and vitreous hemorrhage.