Video: Do Dry Eyes Affect Vision – John Hovanesian, MD

(No Ratings Yet)

 Loading ...

More videos from: John Hovanesian, MD

• Related

Reasons Eyes Get Tired – Mark Slosar, OD

Eye Vision Improvement – Mark Slosar, OD

What Are The Advancements In Lasik – Alan Berg, MD

Presbyopia Treatment Advancements – Carl Hartman, MD

Presbyopia Treatment With Multifocal Lenses – Carl Hartman, MD

Alternatives To Lasik – Alan Berg, MD

Supplements For Eyes – Mark Slosar, OD

Presbyopia Research – Carl Hartman, MD

Presbyopia Treatment – Carl Hartman, MD

Correct Refractive Errors In Children – Mark Borchert, MD

Laser Eye Surgery For Kids – Jonathan Song, MD

Refractive Errors In Children – Jonathan Song, MD

Why Are Weight Loss Supplements Important For Eye Care – Mark Slosar, OD

Which Supplements Can Help With Eye Fatigue – Mark Slosar, OD

What Are The Advantages For Kids Who Need Refractive Eye Surgery – Mark Borchert, MD

What Are The Advantages Of Lasik – Alan Berg, MD

What Is Lasik Laser Eye Surgery – Alan Berg, MD

What Is Presbyopia – Carl Hartman, MD

Eye Doctor For Kids – Jonathan Song, MD

Eye Nutrition Supplements – Mark Slosar, OD

How Do You Treat Cataracts – Roger Ohanesian, MD

How Do You Prevent Cataracts – Roger Ohanesian, MD

What Is A Cataract – Roger Ohanesian, MD

Why Does Eyesight Decrease With Age – Roger Ohanesian, MD

What Conditions Are Treated In Pediatric Ophthamology – Peter Spiegel, MD

How Do You Treat Lazy Eye In Pediatric Ophthamology – Peter Spiegel, MD

What Is Pediatric Ophthamology – Peter Spiegel, MD

What Types Of Surgeries Are Performed In Pediatric Ophthamology – Peter Spiegel, MD

How Do You Implant An Intraocular Contact Lens – Diana H Kersten, MD

How Do You Implant A Multifocul Intraocular Lens – Robert Guss, MD

Dry eye is a condition in which there are insufficient tears to lubricate and nourish the eye. Tears are necessary for maintaining the health of the front surface of the eye and for providing clear vision. People with dry eyes either do not produce enough tears or have a poor quality of tears. Dry eye is a common and often chronic problem, particularly in older adults. With each blink of the eyelids, tears are spread across the front surface of the eye, known as the cornea. Tears provide lubrication, reduce the risk of eye infection, wash away foreign matter in the eye, and keep the surface of the eyes smooth and clear. Excess tears in the eyes flow into small drainage ducts, in the inner corners of the eyelids, which drain in the back of the nose. Dry eyes necessarily come from two types of tear problem. One is inadequate amount of tears and poor quality of tears.

In inadequate amount of tears the tears are produced by several glands in and around the eyelids. Tear production tends to diminish with age, with various medical conditions, or as a side effect of certain medicines. Environmental conditions such as wind and dry climates can also affect tear volume by increasing tear evaporation. When the normal amount of tear production decreases or tears evaporate too quickly from the eyes, symptoms of dry eye can develop. In Poor quality of tears the tears are made up of three layers of oil, water, and mucus. Each component serves a function in protecting and nourishing the front surface of the eye. A smooth oil layer helps to prevent evaporation of the water layer, while the soft layer functions in spreading the tears evenly over the surface of the eye. If the tears evaporate too quickly or do not spread evenly over the cornea due to problems with any of the three tear layers, dry eye symptoms can develop.

The most common form of dry eyes is due to an inadequate amount of the water layer of tears. People with dry eyes may experience symptoms of irritated, gritty, scratchy, or burning eyes, a feeling of something in their eyes.

Read article: Do Dry Eyes Affect Vision