About Cynthia Kiernan

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So far Cynthia Kiernan has created 414 blog entries.

I’m seeing jagged lines in my vision! Help!

Have you ever seen a temporary black spot in your vision? How about jagged white lines? Something that looks like heat waves shimmering in your peripheral vision?

If you have, you may have been experiencing what is known as an ocular migraine. Ocular migraines occur when blood vessels spasm in the visual center of the brain (the occipital lobe) or the retina.

They can take on several different symptoms but typically last from a few minutes to an hour. They can take on either positive or negative visual symptoms, meaning they can produce what looks like a black blocked-out area in your vision (negative symptom), or they can produce visual symptoms that you see but know aren’t really there, like heat waves or jagged white lines that look almost like lightning streaks (positive symptoms).

Some people do get a headache after the visual symptoms but most do not. They get the visual symptoms, which resolve on their own in under an hour, and then generally just feel slightly out of sorts after the episode but don’t […]

2020-07-28T04:00:00+00:00July 28th, 2020|Blog|

Why Rubbing Your Eyes Is a Mistake

When your eyes feel itchy, it’s a natural reaction to want to rub, rub, rub. It temporarily relieves the itching, and frankly feels great when you’re doing it. Unknowingly, however, you are likely doing short-term – and in some cases long-term – damage to your eyes. Here are some of the detrimental effects that can result from eye rubbing. 

  • Worsening of ocular allergies: rubbing an eye inflamed from allergies starts a vicious cycle. During the allergic ocular response, a chemical called histamine is released from a cell called a mast cell. It is this release of histamine that starts the red, itchy, watery eyes associated with allergies. Rubbing the eyes releases more histamine, causing the eyes to become more inflamed, perpetuating the cycle.
  • Risk of increased eye pressure: Putting pressure on the globe of the eye drastically increases intraocular pressure (IOP). While the effect is temporary, prolonged rubbing can increase your risk of developing glaucoma, a potentially blinding eye disease, especially if the IOP spikes high enough. 
  • Risk of retinal detachment: Any trauma to the […]
2020-07-21T04:00:00+00:00July 21st, 2020|Blog|

My New Glasses Aren’t Working for Me

Eye doctors typically pride themselves on being able to improve someone’s vision through glasses or contact lens prescriptions. Whether it’s a first-time glasses wearer, or someone having either a small or large change in their prescription, we like to aim for that goal of 20/20 vision.

Despite our best efforts, however, correcting vision to 20/20 is not always a positive outcome for the patient. Whether someone will be able to tolerate their new prescription is based on something called neuroplasticity, which is what allows our brains to adapt to changes in our vision.

You or someone you know may have had this happen: Your vision is blurry, so you go to the eye doctor. The doctor improves the vision, but when you get your new glasses, things seem “off.”

Common complaints are that the prescription feels too strong (or even too clear!) or that the wearer feels dizzy or faint. This is especially true with older patients who have had large changes in prescription, since neuroplasticity decreases with age. It is also more likely to happen […]

2020-07-14T04:00:00+00:00July 14th, 2020|Blog|

The Wonderful World of Dailies

When soft contact lenses first came on the scene, the ocular community went wild.

People no longer had to put up with the initial discomfort of hard lenses, and a more frequent replacement schedule surely meant better overall health for the eye, right?

In many cases this was so. The first soft lenses were made of a material called HEMA, a plastic-like polymer that made the lenses very soft and comfortable. The downside to this material was that it didn’t allow very much oxygen to the cornea (significantly less than the hard lenses), which bred a different line of health risks to the eye.

As contact lens companies tried to deal with these new issues, they started to create frequent-replacement lenses that made from SiHy, or silicone hydrogel. The oxygen transmission problem was solved, but an interesting new phenomenon occurred.

Because these were supposed to be the “healthiest” lenses ever created, many people started to over wear their lenses, which led to inflamed, red, itchy eyes; corneal ulcers; and hypoxia (lack of oxygen) from sleeping in […]

2020-07-07T04:00:00+00:00July 7th, 2020|Blog|

6 Reasons Sunglasses Are Essential

Sunglasses are more than just a fashion statement – they’re important protection from the hazards of UV light.

If you wear sunglasses mostly for fashion that’s great–just make sure the lenses block UVA and UVB rays.

And if you don’t wear sunglasses, it’s time to start.

Here are your top 6 reasons for wearing sunglasses:

Preventing Skin Cancer

One huge way that sunglasses provide a medical benefit is in the prevention of skin cancer on your eyelids. UV light exposure from the sun is one of the strongest risk factors for the development of skin cancers.  

Each year there are more new cases of skin cancer than the combined incidence of cancers of the breast, prostate, lung and colon.

About 90 percent of non-melanoma skin cancers are associated with exposure to ultraviolet (UV) radiation from the sun.

Your eyelids, especially the lower eyelids, are also susceptible to UV light and they do develop skin cancers somewhat frequently.

Many people who now regularly apply sunscreen to help protect them from UV light often don’t get that […]

2020-06-30T04:00:00+00:00June 30th, 2020|Blog|

In a Flash…Your Eyes & Fireworks Injuries

Fireworks Eye Injuries Have More Than Doubled in Recent Years

Fireworks sales will be blazing across the country from now through the Fourth of July. As retailers begin their promotions, the American Academy of Ophthalmology is shining a light on this explosive fact: The number of eye injuries caused by fireworks has more than doubled in recent years.

Fireworks injuries cause approximately 10,000 emergency room visits each year, according to data from the U.S. Consumer Product Safety Commission. The injuries largely occurred in the weeks before and after the Fourth of July. The CPSC’s most recent fireworks report showed that about 1,300 eye injuries related to fireworks were treated in U.S. emergency rooms in 2014, up from 600 reported in 2011.

To help prevent these injuries, the Academy is addressing four important things about consumer fireworks risks:

  1. Small doesn’t equal safe. A common culprit of injuries are the fireworks often handed to small children – the classic sparkler. Many people mistakenly believe sparklers are harmless due to their size and the fact they don’t explode. However, […]
2020-06-23T04:00:00+00:00June 23rd, 2020|Blog|

Help! Growing Older and Can No Longer Read with My Contacts!

More middle-aged and older adults are wearing soft contacts than ever.

And one of the biggest reasons they decrease or stop wearing contacts is the difficulty they face reading with their contacts after presbyopia begins to set in around the early 40’s.

Presbyopia is the diminished ability of the natural lens in our eyes to focus up close on near objects. It begins with the occasional medicine bottle being a struggle to read and then over time more and more gets blurry. It can be very frustrating to stare at something up close and have it be blurry regardless of what you do.

So there are three basic choices a contact lens wearer can do to aid their reading while still wearing contact lenses.

Reading Glasses

Initially, the use of an over-the-counter reader or prescription reading glass for occasional use works well for people in the early stages of presbyopia. They are worn over distance contact lenses so there is little adjustment and vision is clear near and far. However, they need to be with you, […]

2020-06-16T04:00:00+00:00June 16th, 2020|Blog|

Keeping Your Glasses in Working Order

Now that you have picked up your new pair of prescription eyeglasses, your focus becomes taking care of them. This is a task many disregard, but it is absolutely imperative that you make sure you are following a couple simple steps to keep the quality of your vision with your new spectacles.

We are all guilty of using a garment when in a rush to wipe away a pesky smudge on our glasses. This act is unfortunately the worst thing you can do for your lenses.

No matter how clean your clothes are, dust particles and even small bits of sand and debris cling to them. Since eyeglass lenses are not made of diamonds, these tiny little particles can do tremendous amounts of damage to your new lenses. The smallest little crumb can grind a scratch directly in your line of vision, which in turn can render your glasses almost useless.

Most of us know what it feels like trying to concentrate on the world in front of you when there is a little scratch distorting […]

2020-06-09T04:00:00+00:00June 9th, 2020|Blog|

Why a Progressive Lens Might Be Your Best Choice

A quick explanation and background of a progressive addition lens is necessary in order to understand the importance of choosing the proper lens for your needs.

A progressive lens gives people an array of prescriptions – placed in the proper positions throughout the lens – to best imitate normal vision. Imagine having the precise correction needed to see a television screen more than 15 feet from you, while reading this article on your desktop computer, and then looking down at your keyboard in order to start entering the address to your favorite website. This, in a nutshell, is exactly what the progressive lens is ideally capable of accomplishing with one pair of glasses.

Having the least amount of peripheral distortion, and one of the wider ranges in both distance power, astigmatism, prism, and add power availability, we find this lens to be very versatile. The most important thing to you is that this product feels very natural in front of your eye. For first-time progressive lens wearers, there is a stigma that it takes a bit […]

2020-06-02T04:00:00+00:00June 2nd, 2020|Blog|

7 Tips for Your Next Eye Exam

The eye holds a unique place in medicine. Your eye doctor can see almost every part of your eye from an exterior view. Other than your skin, almost every other part of your body cannot be fully examined without either entering the body (with a scope) or scanning your body with an imaging device (such as a CAT scan, MRI, or ultrasound).

This gives your eye doctor the ability to determine most eye problems just by looking in your eye. Even though that makes diagnosing most problems more straightforward than in other medical specialties, there are still many things you can do to get the most out of your eye exams. Here are the top 7 things you can do to get as much as possible out of your exam.

1) Bring your corrective eyewear with you. Have glasses? Bring them. Have separate pairs for distance and reading? Bring them both. Have contacts? Bring them with you and not just the lenses themselves but the lenses prescription, which is on the box they came in. What […]

2020-05-26T04:00:00+00:00May 26th, 2020|Blog|