As it gets darker older folks have a hard time adjusting to the light levels
Vision changes occur as you get older, but these changes don't have to affect your lifestyle. Knowing what to expect and when to seek professional care can help you safeguard your vision. As you reach your 60s and beyond, you need to be aware of the warning signs of age-related eye health problems that could cause vision loss. Show
Many eye diseases have no early symptoms. They may develop painlessly, and you may not notice the changes to your vision until the condition is quite advanced. Wise lifestyle choices, regular eye exams and early detection of disease can significantly improve your chances of maintaining good eye health and vision as you age. You may not realize that health problems affecting other parts of your body can affect your vision as well. People with diabetes or hypertension (high blood pressure), or who are taking medications that have eye-related side effects, are at greatest risk for developing vision problems. Regular eye exams are even more important as you reach your senior years. The American Optometric Association recommends annual eye examinations for everyone over age 60. See your doctor of optometry immediately if you notice any changes in your vision. Age-related eye and vision changes and problemsIn the years after you turn 60, a number of eye diseases may develop that can change your vision permanently. The earlier these problems are detected and treated, the more likely you can retain good vision. The following are some vision disorders to be aware of:
Driving safely after 60If you are 60 or older, driving a car may be increasingly difficult. Age-related vision changes and eye diseases can negatively affect your driving abilities, even before you are aware of symptoms. Some age-related vision changes that commonly affect seniors' driving are:
These tips can help you stay safe when driving, especially at night:
Dealing with vision lossUnfortunately, some people over 60 lose sight beyond the normal, age-related vision changes. Macular degeneration, glaucoma, and diabetic retinopathy are among the eye health conditions that can lead to permanent vision loss in varying degrees and forms. Visual acuity alone is not a good predictor of a person's degree of visual difficulty. Someone with relatively good acuity (e.g., 20/40) can have difficulty functioning, while someone with worse acuity (e.g., 20/100) might not experience any significant functional problems. Other visual factors, such as poor depth perception, limited side vision, extreme sensitivity to lights and glare, and reduced color perception, can also limit a person's ability to do everyday tasks. Low-vision rehabilitative services can provide people with the help and resources they need to regain their independence. These services can teach people with low vision a variety of techniques that allow them to perform daily activities with their remaining vision. A doctor of optometry can help plan a rehabilitation program so that you can live an independent life within your condition's limitations. A wide variety of rehabilitation options are available to help people with low vision live and work more effectively, efficiently and safely. Most people benefit from one or more low-vision treatment options. The more commonly prescribed devices are:
In addition, numerous other products can assist those with a vision impairment, such as large-type books, magazines, and newspapers; books on tape; talking wristwatches; self-threading needles; and more. Talk with a doctor of optometry to learn more about available options. When you enter a darkened room you will find it hard to see at first?This is because in bright sunshine the pupil of our eye is small and when we just enter the darkened room very little light enters our eye due to which we cannot see properly. After a while, when the pupil of our eye expands, more light enters our eye and we can see clearly.
What theory states that the eye contains separate receptors for blue red and green?For visual processing on the retina, trichromatic theory applies: the cones are responsive to three different wavelengths that represent red, blue, and green.
When people are affected by information that is presented below their level of awareness?Generally speaking, “Subliminal perception occurs whenever stimuli presented below the threshold or limen for awareness are found to influence thoughts, feelings, or actions” (Merikle, 2000).
Which of the following is the newest of the five basic tastes to be discovered?Umami. Umami is an appetitive taste, sometimes described as savory or meaty. It is the most recently identified and accepted of the basic tastes.
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