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Doctor Endorsements
Our practice has been recommending VisiVite Dry Eye Relief TG-1000 to every dry eye patient we see. The patients love it. They feel a great relief from not having to constantly feel a burning or itching sensation and being free of hourly tear drops. Our practice recommends these products to everyone!
Monique M. Barbour, M.D.
We see approximately 120 patients per week with about 15% having or being at risk for macular degeneration. Using the AREDS as our reference we became aware of the importance of nutritional supplements in the prevention of the progression of macular degeneration. This along with various other studies on the importance of vitamins for general eye health and AREDS2 prompted us to look for a supplement that fit the needs of our patients. Visivite showed itself to be the only company who took pains to offer the ratio of different vitamins supported by this research.
Dr. Kendal Piatt, O.D.
We have been recommending VisiVite for several years. AREDS2 formulation vitamins are the mainstay in the treatment of dry AMD which affects about 1.7 million Americans. We find that the VisiVite vitamins fit the needs of our patients. We can recommend different formulations based on the patients' history. The quality is unsurpassed, they are well tolerated which increases patient compliance. At "Island Retina" our mission statement is to provide outstanding retinal care in a warm and supportive environment. I have been practicing for more than 20 years. We love taking care of patients with retinal disease including diabetes, macular degeneration and retinal detachments. Our practice is unique in that we have a surgery center,we are involved in several national research projects as well as our own research, and we have a satelite office in Commack, NY. I do a great deal of lecturing throughout the country as part of my committment to education.
Pamela Weber, M.D.
Retinal Surgeon
East Florida Eye Institute specializes in the treatment of Macular Degeneration, Glaucoma, Diabetic Eye Disease, and Dry Eye Disease. We recommend the use of VisiVite for all of our Macular Degeneration patients.
Ronald E. P. Frenkel, M.D.
We recommend that all of our patients take VisiVite AREDS2-based vitamins, due to the evidence based nature of the formula.
Marc Lay, OD
I've been in practice for 36 years. We see many patients with Macular Degeneration and dry eyes. As a general Ophthalmologist, I see patients with varying Eye problems including cataracts and glaucoma. Based on the AREDS2 study, a vitamin like Visivite is the only treatment for Macular Degeneration available today.
Martin L Weinhoff, MD
This combination of nutrients, found in supplements like Ocuvite and VisiVite, is now widely recommended for people with moderate or severe macular degeneration. Current or former smokers may be better off with VisiVite's Smoker's Formula, which leaves out the beta-carotene (beta-carotene supplements my increase the risk of lung cancer in smokers).
Marvin Moe Bell, M.D., M.P.H.
Physician and Author
I recommend VisiVite to all my macular degeneration patients. Based on the latest AREDS2 study, lutein and zeaxanthin absorption was increased when beta-carotene was eliminated. Therefore, I advise all my AMD patients to take VisiVite AREDS2 Plus+ Gold Formula for maximal protection, as it contains all the necessary ingredients as recommended by this latest research.

Dr. Cohen is a distinguished Fellow of The American Academy of Optometry.
Dr. Madeline Cohen, O.D.
Optometrist, F.A.A.O.
Night vision, also known as scotopic vision, refers to the ability to see in dimly-lit environments. Night vision is monochromatic and unclear, equating to roughly 20/200 vision. Aging, sunlight exposure, nutritional deficiencies and certain medical issues can all lead to decreased night vision. There are several causes of decreased night vision; some are treatable and some are not.

How Does Night Vision Work?

The eye's lens focuses light -- even low light at night -- on the retina. The retina contains receptor cells called rods and cones, which process light into vision. Cones are responsible for "high definition" central vision in bright, vibrant colors. Rods are responsible for peripheral vision, motion-sensing and low-light vision. Rod cells are able to process vision at night because they are highly sensitive to light -- over 1,000 times more sensitive than cones. The tradeoff: Rods cannot effectively process color or detail. That is why night vision tends to be less sharp and has a gray, colorless appearance. 

Rhodopsin's Night Vision Importance

When exposed to light, photopigments in the retina undergo a chemical reaction that converts light to electrical impulses, which are transmitted to the brain via the optic nerve. Rod cells use one photopigment called rhodopsin to transmit signals that enable night vision. During exposure to bright light, rhodopsin decomposes or "bleaches," which deactivates rod cells. In low light or darkness rhodopsin regenerates, re-activating rod cells. Rhodopsin regeneration (also called rhodopsin turnover) occurs relatively slowly, which is why it takes several minutes for vision to adjust in the dark. This gradual low-light vision onset, known as dark adaptation, is familiar to anyone who has moved from bright daylight to a darkened room. Maximum low-light vision occurs in 30 to 45 minutes, which is how long it takes for complete rhodopsin turnover. Some nutritional compounds have been found to accelerate this rhodopsin turnover. 

What Causes Decreased Night Vision?

Aging: The pupil becomes less effective at dilating with advancing age, meaning less light enters the eye and night vision progressively worsens. Age-related eye health issues like cataracts and macular degeneration also lead to poor night vision. 

Exposure to sunlight: Sunlight exposure to the eyes can impair night vision and slow down dark adaptation. Three hours of sunlight exposure is believed to delay dark adaptation by up to ten minutes. Ten days of consistent bright sunlight exposure is believed to cause a 50 percent reduction in night vision. Individuals who regularly experience longer-term sun exposure may take weeks to recover their night vision, and may eventually permanently lose full function of their rod cells.

Retinitis pigmentosa: Retinitis pigmentosa is a genetic eye disease that usually manifests prior to the age of 30. The disease's damage to the retina affects rod cells first, often leading to decreased night vision and peripheral vision loss. Retinitis pigmentosa is a progressive disease, although it rarely causes complete blindness. Antioxidant nutrients and Omega-3 fatty acids have both been investigated for their ability to help with retinitis pigmentosa. 

Diabetes: People who have diabetes can suffer from a condition called diabetic retinopathy in which high blood sugar damages the retina, leading to poor night vision and impaired dark adaptation. 

Cataracts: With advancing age, proteins in the normally-clear lens can break down -- leading to a gradual lens-clouding condition known as cataracts. Poor night vision is often an early warning sign of cataract development.

LASIK surgery complication: A rare LASIK surgery side effect is decreased night vision. Individuals who experience this complication may see a glare, "starburst" or halo around lights and objects at night. An eye doctor's pre-LASIK surgery evaluation may help to determine the likelihood of decreased night vision complications. 

Nutritional deficiency: Deficiency of vitamin A, while rare, has been associated with decreased night vision and night blindness. Health issues like celiac disease and Crohn's disease can diminish the body's ability to absorb vitamin A from foods, and may also contribute to night vision problems. Since body also requires zinc to fully utilize vitamin A, zinc deficiency may play a role in decreased night vision. 

Managing Decreased Night Vision

Individuals with decreased night vision should visit their eye doctor to rule out the possibility of serious eye health issues. An eye doctor will examine the eyes to identify the causes of night vision problems. There are several strategies to assist with decreased poor night vision, depending on the cause: 

Protection from the sun: Wearing a wide-brimmed hat and high-quality, grey-tinted sunglasses that only allow 15% of light to pass through the lenses will help to maintain night vision and dark adaptation. 

Cataract surgery: Surgery that replaces a clouded lens with a clear artificial lens can effectively restore night vision. 

Diabetes treatment: Promoting balanced, healthy blood sugar levels helps to protect the retina from diabetic damage that is associated with decreased night vision. 

Nutrition: Mindful prevention of vitamin A and zinc deficiency through healthy diet and nutritional supplementation can help to maintain night vision. Carotenoid antioxidant nutrients that protect the eye's rod cells from the sun's damaging UV rays may also optimize healthy night vision. Further, science has identified multiple natural compounds that appear to promote visual acuity in low-light environments while accelerating rhodopsin turnover. 

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