Sonia Kelley

Eye pain can be mild or serious. Learn about the symptoms, possible causes, treatments and when it’s important to see a doctor.

Find out what bionic eye are, how they work, and what they mean for the future of eye care.

Learn how certain intraocular lenses (IOLs) can correct presbyopia & common refractive errors, enabling an expanded range of clear vision.

Learn to identify 10 key warning signs of age-related eye problems, when to see an eye doctor, and how to protect your vision as you get older.

Explore how your baby's vision develops from birth to toddlerhood, including key milestones and tips for supporting visual growth.

Dr. Gary Heiting tells why eye exams for children are crucial to rule out vision problems that can lead to eye strain, poor academic performance and vision loss.

Discover the key differences between ranibizumab and bevacizumab for wet AMD, including effectiveness, safety, costs and treatment options.

A contrast sensitivity test can detect vision problems that conventional eye charts may miss. Learn how it works and when an optometrist may recommend it.

Learn what vision therapy is, how it can help children with visual skills or eye coordination problems, and whether it really works.

Get details on what vision problems LASIK corrects and whether you're a good candidate for it.

Find out why your eyes might feel itchy, how to relieve irritation at home and prevent flare-ups, and when you should see a doctor for treatment.

A corneal abrasion is a scratch on the eye’s surface that can cause pain, tearing and light sensitivity. Learn how they're treated and when to see a doctor.

Discover how smart glasses work. Explore features, uses, benefits and future advances. Learn how this innovative eyewear blends technology and vision.

Learn how eyeglass lenses correct vision and why concave and convex lenses help people with nearsightedness and farsightedness see clearly.

Visual acuity is the ability to see distinct figures and fine detail clearly. Visual acuity tests measure how well a person sees from a specific distance.

Depth perception allows us to see the world in three dimensions and to judge the relative distance and movement between objects and ourselves.

OD means both “right eye” and “Doctor of Optometry.” Learn about other common eye abbreviations that are good to know during visits to the eye doctor.

Nuclear sclerosis is a hardening and yellowing of the center, or nucleus, of the eye’s natural lens. Nuclear sclerosis is part of the normal aging process.

Nuclear cataracts are a central clouding and hardening of the eye’s lens. They are the most common cataract type and cause blur and changes in vision.

Posterior subcapsular cataract (PSC) is a fast-growing opacity in the outer layer of the rear portion of the natural lens.

A cortical cataract is an opacity in the outer layer, or cortex, of the natural lens that causes glare, light sensitivity and blurry vision.

Monovision cataract surgery replaces the natural lens with an intraocular lens (IOL) that corrects for distance in one eye and for near in the other eye.

Asthenopia is the technical name for eye strain or eye fatigue, often caused by computer vision syndrome. Symptoms include eye ache, headache and blur.

Hypertropia is a form of vertical strabismus where one eye deviates higher than the other. It can occur at birth or later in life from disease and injury.

Madarosis is the loss of eyebrow or eyelash hair. It is typically due to an underlying eye, skin or health condition and can be temporary or permanent.

Dacryoadenitis is inflammation of the lacrimal glands, the glands that produce tears. It causes pain and swelling in the upper, outer corner of the eyelid.

Discover the ways your eyes can reflect your heart and cardiovascular health.

Discover the 15 different ways heart health can affect your eyes and vision.

Seeing a specialist, educating yourself and preparing for your office visit are steps that can help your doctor find a diagnosis.

Scratches on your glasses lenses may distract you and blur your vision, but they will not make your vision worse.

When a person becomes nearsighted, the axial length of their eyeball (the distance from the cornea to the retina) may increase, resulting in axial myopia.

Whether myopia is more nature vs. nurture seems to be the result of a complex interaction between a person’s genes and environment.

Some people are unable to read the biggest letter in a vision test. Find out what this means.

Find out what may be causing your child to have blurry vision upon wearing new glasses.

A concave lens corrects nearsightedness by diverging the light rays entering the eye so that they focus directly on the retina instead of in front of it.

Studies investigating what causes myopia progression in children cite a child’s genetics, underlying medical conditions, outdoor time, near-work time and correction type.

Recent studies have shown that low-dose atropine eye drops for myopia control may slow the progression of myopia and eyeball elongation in children.

Decreased oxygen, inflammation, infection or trauma may lead to vascularization of the cornea and may result in vision loss.

Studies suggest that people with blood type A, B or AB have an increased risk of cardiovascular disease, which can increase the risk of some eye diseases.

Young children with high myopia may have associated underlying eye or medical conditions. Some rare conditions are explained and discussed in this article.

It is normal for young people with myopia, especially high myopia, to have eye floaters. However, an increase in floaters may indicate a more serious issue.

Astigmatism can occur alone or at the same time as myopia. Astigmatism cannot cause myopia. Both are simply a type of refractive error.

Staring at the distance will not cure myopia, although it may relieve eye strain, and possibly have long-term vision benefits as well.

The 20-20-20 rule relieves eye strain by reminding you to look at something 20 feet away for 20 seconds every 20 minutes.

For screen-free week, May 5-11, explore how excessive screen time affects your eyes.

Maculopathy is damage to the macula. It can result in blurry central vision and can be due to a variety of underlying conditions.

AAPI communities are at higher risk for myopia, diabetic retinopathy and angle-closure glaucoma, as well as complications of hepatitis B and tuberculosis.

A stroke can result in many changes to vision, including visual field loss, double vision, and difficulties with visual perception and visual memory.

A conjunctival nevus is an eye freckle, a harmless accumulation of melanin-producing melanocyte cells on the conjunctiva of the eye.