About Cynthia Kiernan

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So far Cynthia Kiernan has created 414 blog entries.

How Many of These Bad Contact Lens Habits Are You Guilty Of?

Here are 11 bad contact lens habits we eye doctors often see–

#1 Sleeping in your contacts.

This is the No. 1 risk factor for corneal ulcers, which can lead to severe vision loss and the need for a corneal transplant. Your cornea needs oxygen from the atmosphere because it has no blood vessels. The cornea is already somewhat deprived of oxygen when you have your eyes closed all night, and adding a contact on top of that stresses the cornea out because of the lack of oxygen. You don’t need to see when you are sleeping!  TAKE YOUR CONTACTS OUT!  I promise your dreams will still look the same.


#2 Swimming in your contacts.

Salt, fresh, or pool water all have their individual issues with bacteria, amoeba, chemicals, etc., that can leach into your contacts. If you end up wearing them in the water, then take them out as soon as you are done and clean and disinfect them.


#3 Using tap water to clean contacts. […]

2023-04-11T04:00:00+00:00April 11th, 2023|Blog|

Options for Vision Correction While Playing Sports

There are many options available to adults and children for corrective lenses (glasses and contacts) when engaged in physical activities.

Here is a look at the different modalities and the pros and cons of each:

Prescription Sports Goggles (e.g., Rec Specs)

The main benefits of goggles while playing sports are vision stability and eye protection. When playing fast-moving sports–like basketball, soccer, and rugby–elbows, wrists, and heads fly around at high speed, increasing the risk of eye injury. The eyes and eye sockets can be protected when covered by shatter-proof lenses. Additionally, there is no worry over having a contact lens pop out of the eye, which can be a debilitating experience for some people. The main drawback to goggles is that they can be cumbersome, decrease peripheral vision, and fog up. Additionally, very high prescriptions might not be available due to frame limitations. On the whole, this is a very good option for many people. One additional advantage to sports goggles is that they can often be made with Transitions lenses, providing automatic sun protection in […]

2023-04-04T04:00:00+00:00April 4th, 2023|Blog|

Are You Asking for Trouble with Your Contacts Care Routine?

Oftentimes, contact lens wearers will skimp on their lens care because some of the solutions are costly and it seems like a good way to save some hard-earned cash. But this is not a good idea.

Cutting corners can result in infections or irritations, and after one or two copays to your eye doctor's office you probably will have spent more than what you saved in a year by cutting corners–plus you have to deal with your discomfort and inability to wear your contact lenses while you are being treated.

The reasons you clean your contacts is to give increased lens comfort, prolong lens oxygen permeability, and to protect your eyes from infection. The reason you have to disinfect your contact lenses is – as nasty as it may sound – that your eyeball and eyelids are covered in essential bacteria that are kept in check by your body’s immune system. When you remove your contact lens at night it is covered in these essential bacteria. If you don't kill them overnight this will allow the […]

2023-03-28T04:00:00+00:00March 28th, 2023|Blog|

Macular Degeneration, Cataracts, and Your Eyes

We are frequently asked if it’s wise to have cataract surgery if you have Macular Degeneration.

Let’s start with some background.

  1. Cataracts and Age-related Macular Degeneration (AMD) are both leading causes of visual impairment in the elderly population.
  2. Cataracts develop when the normal clear lens gets cloudy with age. This is correctable with cataract surgery, which involves replacing the cloudy lens with a clear, artificial lens.
  3. While cataracts affect the front part of the eye, AMD causes damage to the retina, which is the inner back lining of the eye.

There have been concerns about cataract surgery causing progression of AMD. It has been thought that there was an inflammatory component to AMD and the normal inflammatory response after cataract surgery may lead to AMD progression.

But studies have looked at patients who underwent cataract surgery compared to patients who didn't have cataract surgery and the progression of AMD was not significantly different between the two groups. However, those patients with AMD who underwent cataract surgery had a significant improvement in vision.

AMD patients […]

2023-03-26T04:00:00+00:00March 26th, 2023|Blog|

Why Frequent Eye Exams Are a MUST If You Take Hydroxychloroquine (Plaquenil)

Hydroxychloroquine (Plaquenil) was originally used to treat malaria and is now commonly used to treat rheumatological and dermatological diseases. It is frequently used for rheumatoid arthritis (RA) and Lupus and is often very effective in mitigating the joint and arthritic symptoms these diseases can cause.

One of the most significant side effects of the drug is its possibility of causing eye problems resulting in blurred or decreased vision. The most common issue is damage to the retina. It can impair  color vision or damage the retinal cells, particularly in the area right around the central vision.

In your retina, the area that you use to look straight at an object is called the fovea. The fovea is the area that provides you with the most definition when looking at an object. The area just around the fovea is called the macula and it has the ability to see objects with slightly less definition than the fovea but significantly better than the rest of your retina, which accounts for your peripheral vision. The most common place for […]

2023-03-21T04:00:00+00:00March 21st, 2023|Blog|

Eye Safety for the Solar Eclipse

Mark your Calendars!!! On Monday, April 8, a solar eclipse will be visible across the entire continental United States and most of Canada.

A solar eclipse occurs when the moon blocks any part of the sun, and with this one, the vast majority of North America will experience at least a partial eclipse.

A lucky few million people along a path from Texas to Kentucy to Ohio to Maine and eastern Canada will experience a brief total eclipse when the moon completely blocks the sun for up to 4 minutes. During this time, it will look like dusk along that path.

This total eclipse will make the solar corona visible, and stars and the planets may also be visible during this time.

But looking directly at the sun before it is completely covered is unsafe. Although there is a limited chance of eye damage if you are in the proper area during the total eclipse it is not worth the risk of retinal damage to even take a quick look at the eclipse if it is […]

2023-03-19T04:00:00+00:00March 19th, 2023|Blog|

9 Fascinating Facts About Green Eyes

In honor of St. Patrick’s Day and the “wearin’ of the green,” we thought it would be fun and fitting to share some interesting facts about green…eyes!

#1

Green is the rarest eye color. If your sparklers are truly green, you are something of a unicorn… only about 2% of the world’s population sport this hue.  

#2

Green-eyed people can be found all around the globe. There is a Chinese village, Liqian, where a high percentage of the population sports green eyes and lighter hair.

#3

There isn’t any actual green pigment in a green eye. Melanin, a natural pigment that helps determine our skin, hair, and eye color, is found in all eyes. Brown eyes have quite a lot and blue eyes have relatively little. Green eyes are also low on melanin, but in addition they contain lipochrome, a yellowish, fat-soluble pigment. Lipochrome is also found in things like butter, eggs, and corn. So a little melanin, some lipochrome, and a cool light dispersing […]

2023-03-14T04:00:00+00:00March 14th, 2023|Blog|

The Care & Cleaning of Your Glasses

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 […]

2023-03-07T05:00:00+00:00March 7th, 2023|Blog|

Am I Dealing with Allergies, Dry Eye, or Infection?

As an eye doctor, diagnosing a red eye can be challenging. Are we dealing with an infection, allergy, inflammation, or dryness?

A common question we get is, “Doc, my eyes are red, burning, itchy, and tearing. Is this dry eye or from allergies?” The short answer is it could be one, both, or neither. We'll outline various ways these conditions present clinically and the treatments for them.

The hallmark symptom of allergy – meaning if you have this symptom you almost definitely have the condition – is itching. Red, watery, ITCHY eyes are almost invariably due to an allergen, whether environmental or medicinal. It is one of the most common ocular conditions that we, as eye doctors, treat — especially when plants are filling the air with pollen as they bloom in the Spring and then die off in the Fall.

The itching occurs because an immune cell called a mast cell releases histamine, causing the itching sensation. It can be quite unbearable for the sufferer, causing them to rub their eyes constantly, which actually increases […]

2023-02-28T05:00:00+00:00February 28th, 2023|Blog|

Screen Time & Your Eyes

"It was the best of times, it was the worst of times." These famous words by Charles Dickens are playing out today in the area of technology.

We are living in the best of times when it comes to obtaining knowledge at the push of a button. But smartphones, laptops, video games, tablets, etc., can really increase our daily total screen time.

What are the symptoms of too much screen time for the eye, and how can you combat these symptoms?  Research shows that screen time can adversely affect your eyes, focus, moods, and ability to sleep and relax.

Doctors are also seeing an increase in dry eye syndrome because patients do not blink often enough while they are staring at the screen for a prolonged period of time. The lack of blinking can cause burning or watery eyes, rubbing of the eyes, and frequent headaches.

The key to combatting these symptoms is to consciously blink more, use rewetting eye drops, and take frequent breaks. Make it a priority to practice the 20-20-20 rule. For every […]

2023-02-21T05:00:00+00:00February 21st, 2023|Blog|