Archive for February 2017

color blindness

How People with Different Types of Color Blindness See the World

Different Types of Color Blindness 

Color blindness according to data available on the most comprehensive resource affects, quite a lot of us — around 0.5% of women and 8% of men — suffer from inaccurate perceptions of color.

The effects of color vision deficiency can be mild, moderate or severe depending upon the defect. If you have inherited color blindness your condition will stay the same throughout your life – it won’t get any better or worse.

The retina of the eye has two types of light-sensitive cells called rods and cones. Both are found in the retina which is the layer at the back of your eye which processes images. Rods work in low light conditions to help night vision, but cones work in daylight and are responsible for color discrimination.

There are three types of cone cells and each type has a different sensitivity to light wavelengths. One type of cone perceives blue light, another perceives green and the third perceives red. When you look at an object, light enters your eye and stimulates the cone cells. Your brain then interprets the signals from the cones cells so that you can see the color of the object. The red, green and blue cones all work together allowing you to see the whole spectrum of colors. For example, when the red and blue cones are simulated in a certain way you will see the color purple.

  • Normal Vision – A person with normal vision sees the world around them in these colors.

  • Deuteranomalia – is the most common form of color blindness. Around 4.63% of men suffer from it and in many cases don’t even realize. It’s clear from the photo that the colors have lost some of their brightness, especially with regard to green and red.

  • Protanopia is a less-widespread form of color blindness — only around 1% of men experience it. All shades of green and red appear somewhat faded, whilst blue and yellow shades remain virtually unchanged.

  • Tritanopia is a very rare form of color blindness affecting men and women to an equally small degree. Those who experience it see the world in greenish pink tones.

  • As for total color blindness, it certainly exists, but it’s extremely rare: only 0.00003% of the world’s population has it.


WHERE TO FIND AVENOVA: 1-800­-890­-0329 or via web Patients – Contact or
Physician Contact

Socialize & Stay Current with NovaBay via Facebook Twitter and LinkedIn

Read More

A Real Valentine’s Day Gift: Relief from Painful Dry Eye

Valentine’s Day is an Occasion to Do Something Special for People We Love – Give the Ultimate Gift of Better Health to Someone Suffering from the Painful Dry Eye Condition

By: Amr Kouchouk, M.D.

Valentine’s Day is an occasion to do something special for the person we love. And yes, a necklace, a set of golf clubs, or a romantic dinner can be great ways to show appreciation. But there’s another type of gift that can be even more precious—the gift of better health and of relief from painful conditions. I’m thinking in particular about a growing problem called dry eye.

Dry eye afflicts millions of Americans, with the numbers rising as people get older. Meibomian gland dysfunction (the leading cause of dry eye) has a prevalence of nearly 50% among adults (exact number varies among studies)! This is a disease that affects several million people here in the US. Dry eye disease is an epidemic, and in my opinion for a long time has been one of the most undertreated diseases possibly in all of medicine.

Why do people suffer from dry eye? The leading cause is meibomian gland dysfunction, which means that the oil glands in our eyelids cannot get enough oil into our tear film which causes our tears to disappear too quickly.  This is made worse by millions of microbes, bacteria, and in some cases even parasitic mites! These may cause a biofilm which blocks the secretion of these oils. Even worse, they produce an enzyme called lipase that breaks up the crucial oil.

Dry eye disease is multifactorial, and as such there are a variety of treatments that are needed to adequately treat it.  Anti-inflammatory drops (Restasis and Xiidra) are helpful.  Lipiflow – a procedure that heats up and then massages the oil glands to remove the obstruction has been shown to be effective.

As there are many treatments available, it is always important to know where it is best to start.  At the base of my “Treatment Pyramid” – I put every dry eye patient on Oral Re-esterified Omega 3 Supplements (PRN) and Avenova – an innovative daily lid and lash hygiene spray.  Some patients have reported that they have been instructed to use “baby shampoo” in the past, however this can actually be harsh, irritating, and does not have close to the results that one can get with Avenova.  Avenova provides Neutrox – a pure 0.01% hypochlorous acid which is naturally made by our own cells, so it is 100% safe to use every day.  More importantly, it does a fantastic job at removing those harmful bacteria, mites, and even the lipase that breaks up the oil in our tear film.

The results speak for themselves, as I have consistently heard from hundreds of patients the effect something so simple has had on their quality of life. You will never have healthy looking eyes unless your eyelids are healthy.  So on Valentine’s Day, you can offer the gift of healthier eyes to the people you care about the most – or to yourself.

About Amr Kouchouk, M.D.

One of the nation’s top dry eye specialists and a cornea/refractive surgeon, Dr. Amr Kouchouk, MD has published numerous papers in medical journals and has presented his research at national meetings.  He has created a Dry Eye Center of Excellence where he provides the latest technologies available for treatment.

WHERE TO FIND AVENOVA: 1-800­-890­-0329 or via web Patients – Contact or
Physician Contact

Socialize & Stay Current with NovaBay via Facebook Twitter and LinkedIn

Read More

Your Eye Makeup Could be Making You Sick

Eye makeup can be a breeding ground for bacteria. We all have a few microbes, like Staphylococcus and Streptococcus, living around our eyes. When eyeliner or mascara is applied, some of those bugs stick to the applicator and are carried back to the makeup container.

Contributors: Christine Sindt, OD and Alice T. Epitropoulos, MD

For a lot of women, eye makeup is an essential part of being properly dressed — just as important as a stylish outfit or nice shoes. But while mascara and eyeliner can create different looks, from subtle to striking, they can also make you sick.

Eye products are supposed to contain preservatives to keep bacteria from growing. But some products don’t have enough. And over time, the preservative’s effectiveness declines. As a result, the bacteria on an eyeliner pencil or mascara applicator grow and multiply. Each time you apply makeup, you get bigger and bigger doses of bacteria — enough to cause serious infections.

“Every year, many women end up with eye infections from cosmetics,” warns the University of Rochester Medical Center. “In rare cases, women have been temporarily or permanently blinded by an eye cosmetic, according to the FDA.”

You can, however, prevent these problems and others with these simple tips:

  • Don’t share makeup to avoid spreading bacteria.
  • Replace your eye makeup regularly, at least every three to four months.
  • Remove eye makeup at the end of every day.
  • Practice good eyelid hygiene.
  • Keep updated on the latest eyelid-eyelash hygiene clinical safety reports.

Christine Sindt, OD, Clinical Associate Professor of Ophthalmology at the University of Iowa, recommends wiping the eyes daily with a new antibacterial eyelid cleanser, such as Avenova from NovaBay Pharmaceuticals. “One recent study showed that Avenova dramatically reduces the amount of Staphylococcus and other bacteria around the eye — by more than 99 percent,” says Sindt. “Avenova contains a solution of pure hypochlorous acid, a substance used by the body as a natural defense against pathogens, but is completely harmless to skin.”

“I encourage women to talk to their doctors about daily eye hygiene using safe and effective products, such as Avenova, which can be the best defense against infections and other common eye problems, like dry eye and Blepharitis,” adds Columbus, Ohio, ophthalmologist Alice T. Epitropoulos, MD. “Take these steps, and women can have both beauty and healthy eyes.”

WHERE TO FIND AVENOVA: 1-800­-890­-0329 or via web Patients – Contact or
Physician Contact

Socialize & Stay Current with NovaBay via Facebook Twitter and LinkedIn

Read More

Eye Health Tips – Simple Tips for Healthy Eyes

Eye-Health Is an important part of your health. There are many things you can do to keep them healthy. Follow these simple steps for maintaining healthy eyes well into your golden years.

  1. Have a comprehensive dilated eye exam – You might think your vision is fine or that your eyes are healthy, but visiting your eye care professional for a comprehensive dilated eye exam is the only way to really be sure.
  2. Know your family’s eye health history – Talk to your family members about their eye health history. It’s important to know if anyone has been diagnosed with a disease or condition since many are hereditary.
  3. Eat right to protect your sight – You’ve heard carrots are good for your eyes. But eating a diet rich in fruits and vegetables, particularly dark leafy greens such as spinach, kale, or collard greens is important for keeping your eyes healthy, too. Research has also shown there are eye health benefits from eating fish high in omega-3 fatty acids, such as salmon, tuna, and halibut.
  4. Maintain a healthy weight – Being overweight or obese increases your risk of developing diabetes and other systemic conditions, which can lead to vision loss, such as diabetic eye disease or glaucoma.
  5. Wear protective eyewear – Wear protective eyewear when playing sports or doing activities around the home.
  6. Quit smoking or never start – Smoking is as bad for your eyes as it is for the rest of your body. Research has linked smoking to an increased risk of developing age-related macular degeneration, cataract, and optic nerve damage, all of which can lead to blindness.
  7. Be cool and wear your shades – Sunglasses are a great fashion accessory, but their most important job is to protect your eyes from the sun’s ultraviolet rays. When purchasing sunglasses, look for ones that block out 99 to 100 percent of both UV-A and UV-B radiation.
  8. Give your eyes a rest – If you spend a lot of time at the computer or focusing on any one thing, you sometimes forget to blink and your eyes can get fatigued. Try the 20-20-20 rule: Every 20 minutes, look away about 20 feet in front of you for 20 seconds. This can help reduce eyestrain.
  9. Clean your hands and your contact lenses properly – To avoid the risk of infection, always wash your hands thoroughly before putting in or taking out your contact lenses.
  10. Practice workplace eye safety – Employers are required to provide a safe work environment. When protective eyewear is required as a part of your job, make a habit of wearing the appropriate type at all times and encourage your coworkers to do the same.

WHERE TO FIND AVENOVA: 1-800­-890­-0329 or via web Patients – Contact or
Physician Contact

Socialize & Stay Current with NovaBay via Facebook Twitter and LinkedIn

Read More

Top 10 Health-Related and Attainable Goals

You may want to consider some of these top 10 commonly mentioned resolutions, but in the context of a measured approach.

Contributor: Robert Glatter, MD via

  1. Get More Exercise –  This is easier said than done.  One of the biggest mistakes is setting out on an overly aggressive workout regimen. One of the most effective ways to meet this resolution is to simply start moving more, walking or biking instead of driving, taking the stairs instead of the elevator, and taking baby steps instead of giant steps.
  2. Get More Sleep – Sleep is integral for optimal functioning of your mind and body. It is critical not only for problem solving and maintaining alertness, but also for preventing weight gain, depression and anxiety. Consider taking a warm shower or bath before bed on a routine basis. Turn off all screens 2 hours before bedtime, and resist the urge to sleep with your phone next to your bed.
  3. Reconnect with Nature – Try leaving your smartphone or tablet at home, and taking a walk in a park or on a hiking trail in the woods with a friend. Periodic weekends apart from your Phone are a healthy way to reconnect with yourself, friends and family.
  4. Practice Meditation – Meditation provides the ideal way to reconnect with yourself by virtue of learning how to breathe and relax. Not only may it make you feel more secure, confident and relaxed, but regular meditation may also lower your blood pressure and improve your heart health.
  5. Reduce Your Caloric Intake – Reducing your daily food intake can make you feel better and actually provide more energy throughout your day.  Reduction in calories may also help you to live longer, as ongoing research indicates. But don’t try to reduce your calories in one fell swoop–do it slowly over a 6 month period.
  6. Declutter Your House Or Apartment – The presence of excess papers, books and “junk” has been linked to anxiety and depression, and is seen in its extreme form with hoarding.
  7. Stop Smoking—Vape If You Must – Quitting smoking is one of the best decisions you can make in 2017 if you haven’t done so already. The lifespan of someone who smokes is about 10 years less than that of someone who never smoked.
  8. Adopt, Volunteer, Or Spend Time With An Animal – One of the best ways to warm your soul, lower your blood pressure, and ease your stress is to spend time with animals.
  9. Keep Up-To-Date On Vaccinations And Health Screenings – Making sure you have the proper vaccinations is one of the most important ways to guard against disease.  This includes an annual flu shot, shingles vaccine for adults 60 and older, as well as a pneumococcal vaccine for adults 65 years and older.
  10. Drink Adequate Amounts Of Water – Keeping your body well hydrated helps to ensure the integrity of your organs and immune system are in top shape in order to guard against local infection and sepsis. 

WHERE TO FIND AVENOVA: 1-800­-890­-0329 or via web Patients – Contact or
Physician Contact

Socialize & Stay Current with NovaBay via Facebook Twitter and LinkedIn

Read More