Tag Archives: LASIK


9 Nov

EyeMist.com is an online resource for people suffering from Dry Eye, Computer Vision Syndrome, or Allergy Eye. It offers articles and research on treatment, and ways to identify the symptoms of Dry Eye, CVS, and Allergy Eye, as well as Blepharitis and LASIK Eye Surgery.

Laser Eye Surgery Pioneer Marguerite McDonald, MD, Talks Computer Eye Strain

10 Nov

Laser Eye Surgery Pioneer Marguerite McDonald, MD, in addition to performing the world’s first excimer laser eye surgery in 1986, is a practicing Ophthalmologist on Long Island and Professor Emeritus at Tulane University. As a practicing Ophthalmologist, she has considerable experience treating dry eye, computer eye strain and computer dry eye.

On June 1, 2009, Dr. Marguerite McDonald was interviewed on the Sharon Kleyne Hour Power of Water, an Internet radio talk show hosted by Sharon Kleyne. The interview may be heard on World Talk Radio, Voice America, Green Talk Network, Apple iTunes and Amazon.com.

Computer Eye Strain

Dr. McDonald observed that computer eye strain is a common and rapidly growing complaint among her patients and that the number of patients who can no longer use computers as a result of computer eye strain and serious dry eye symptoms is also growing rapidly. Symptoms should always be taken seriously and alleviated when possible, both by soothing the eyes and by taking prevention measures.

Soothing computer eye strain

Dr. McDonald notes that rubbing is bad for your eyes. If dryness or itching of the eyes is caused by allergies, rubbing can further entrench the allergen and cause a release of chemicals that are even more uncomfortable.

For dry eye symptoms, Dr. McDonald recommends a cool, wet compress, lying down and relaxing, with eyes closed. Moisture from the compress will absorb into closed eyes and eyelid skin. Dr. McDonald also recommends Nature’s Tears EyeMist (a sponsor of the Sharon Kleyne Hour Power of Water) to soothe dry eyes. While performing eye surgery, Dr. McDonald has her eyes misted occasionally.


Dr. McDonald pointed out that many factors can predispose computer users to develop dry eye and computer eye strain symptoms. These include arthritis, Parkinson’s, scleroderma, Sjogren’s syndrome, allergies, numerous medications (especially blood pressure medications and anti-depressants), osteoporosis, gout, blink disorders, thyroid problems and the first few days after LASIK eye surgery.

Other factors affecting tear film moisture content during computer use include common office conditions such as indoor air, forced-air heating and cooling, cleansing fluids, detergents, poorly ventilated buildings and excessive computer use.

Preventing and alleviating

According to Dr. McDonald, the most serious eye problem associated with computer use and computer eye strain is reduced blink rate. The normal blink rate is 20 to 30 times per minute whereas somebody deeply absorbed in computer work may blink only three times a minute. This greatly increases moisture evaporation from the eye.

Dr. McDonald suggests keeping the computer screen low so that you have to look slightly down on it and therefore do not open your eyes as widely. She also recommends frequent short breaks to rest the eyes and regular breaks away from the computer. Also important are sleep, stress reduction, exercise, adequate daily water intake and a proper diet including eye foods such as dark green leafy vegetables and foods with omega-3 fatty acids. .

© 2011 Bio-Logic Aqua Research

LASIK Surgery While Pregnant

2 Mar

There were a few questions from the Dry Eye Forum about having LASIK or laser eye surgery while pregnant, so I looked into it and found a great article from Baby Center.

The article has answers from 2 different ophthalmologists, including Dr. Marguerite McDonald. Here is a brief summary of her answer:

“While it’s not likely to be unsafe for the baby, pregnancy isn’t a good time for a mom to get LASIK. Being pregnant can throw off your prescription; as an opthalmologist, I’m often the first person to tell a female patient that she might be pregnant. During pregnancy your eyesight usually swings to nearsightedness, but sometimes you get more farsighted. So, the correction a woman gets while pregnant might no longer work once she has her baby and stops breastfeeding.

Plus, we have to give you drops to dilate your eyes before and during the surgery, and though they’re probably safe we don’t know for sure. Most dilating drops have not been tested on pregnant women, and some of every drop gets into the bloodstream. After the surgery you need steroids and antibiotic drops, and again, those have not been tested in pregnant women.

Also, pregnancy dries out your eyes, which is why most pregnant women can’t wear contacts. If you start the surgery with dry eyes you won’t heal as well. Even when you’re breastfeeding, you’re still in an altered hormonal state, so we usually recommend you wait at least one and preferably two menstrual cycles after you’ve stopped nursing to have LASIK surgery.”

To read the rest of the article, click here

Sight Preservation

11 Oct

There are an estimated 37 million blind people worldwide, the vast majority in Africa and Asia, of which 75% is considered preventable (the biggest culprits are cataracts and glaucoma).[2] The U.S. has 1.3 million legally blind (20/200 or worse) individuals.[3]

Even as scientists develop LASIK surgeries, corneal transplants and other heroic procedures to preserve, protect and restore vision, global vision threats are increasing. The air is becoming hotter, dryer and more polluted, fresh potable water is becoming scarcer, solar radiation is increasing because of ozone layer deterioration, increased population means increased vectors to spread disease, etc.[4]

Those most affected, obviously, are those with the least access to conveniences like fresh water, indoor humidifiers, sunglasses and advances in medical technology.[5] Despite trillions spent on research, modern technology itself can pose unintended threats to vision. Forced-air heating and cooling, insulated wall and windows, and numerous household chemicals can cause eye irritation and dry eye and ultimately threaten vision.[6] Eventually, the growing global vision threat could affect us all.

The good news is that we are not helpless. With education and a few simple precautionary steps, we can learn to protect ourselves and preserve our precious vision.

What is “sight preservation?” “Sight” is defined in the Webster’s New Collegiate Dictionary as “the animal sense of which the end organ is the eye, and by which the position, shape and color of objects are perceived.”[7] “Preservation” is defined as “keeping safe from injury, harm or destruction. Keeping alive, intact or free from deterioration” (as opposed to “restoration”).[8]

Numerous organizations worldwide and in the United States are dedicated to sight preservation. Orbis International does excellent work in the world’s developing countries to provide medical treatment, teach proper vision care and help make available adequate water and nutrition.[9] The Lions Clubs International is also involved in sight preservation, as are numerous other national and international medical, vision and community health organizations.[10]

For the average U.S. resident, with access to medical care and good water, in an age of global warming and drying, we offer the following simple suggestions: Continue reading

Dry Eye and LASIK Surgery

10 Feb

LASIK (laser-assisted in situ keratomileusis) is a type of refractive surgery for correcting myopia, hyperopia and astigmatism. LASIK is performed by ophthalmologists using a laser.

(Following LASIK surgery), patients are usually given a course of antibiotic and anti-inflammatory eye drops. Patients are told to sleep much more and are also given a darkened pair of shields to protect their eyes from bright lights, and protective goggles to prevent rubbing of the eyes when asleep and to reduce dry eye. They also are required to moisturize the eyes with preservative-free tears and follow directions for prescription drops. Continue reading

Sharon Kleyne Talks about Dry Eye with a Leading Ophthalmologist and LASIK Surgeon

22 Dec

Philip Paden, MD, Chief of Staff of an Ophthalmology and LASIK surgery clinic in Medford, Oregon and Medical Director for Bio-Logic Aqua Research. He is an authority of computer vision syndrome, dry eye and preventive eye health.

Sharon: Could you talk a little about eye health?

Dr. Paden: Most people would rather be deaf or crippled than blind. Sight is extremely precious to us. Interestingly, our eyes are about the same as they were 100,000 years ago. However, our environment had changed drastically so that far greater demands are made on them. This change is mostly in three areas:

  1. We live much longer. Instead of living to 30 or 40, we typically live to 80 or 90. That means our eyes are more likely to wear out. Problems with the cornea and retina often need to be repaired, and the delicate glands that produce the tears begin to fail.
  2. We are subjected to city air, with its high ozone and particulate pollution, inversion layers, etc., which are dehydrating and irritating to the eyes.
  3. Indoor air is also dehydrating and irritating. Technologically controlled environments were supposed to be the final word, but we ended up with forced-air heating and cooling, insulated walls and window, and a myriad of chemicals. There is often no fresh air from the outside, dust and bacteria are re-circulated, and the humidity can get dangerously low.