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| Q1: |
My 63-year-old mother in law has just undergone cataract surgery on her left eye. Now, I am worried about the vision in her right eye. What would you advise? |
A1:
Cataract is a clouding of the lens in the eye that affects vision and it is most often related to aging. Structurally, the lens of our eye is made of water and protein, which is arranged in a precise way that allows light to pass through. However, as we age, some of the protein may clump together and begin to cloud a small area of the lens and this may grow larger over time. Apart from that, diabetes, cigarette smoking and prolonged exposure to sunlight have also been linked to cataract development.
One may reduce the risk of developing age-related cataracts by incorporating lutein and zeaxanthin in his/her daily diet. Lutein and zeaxanthin have the ability to prevent protein oxidation in retina, thus protect against increase in lens density and cataract formation. In addition to these powerful carotenoids, beta-carotene, vitamins C and E, zinc and selenium also play important roles in protecting against free radical damage to the lens which in turn, slows down the progression of cataracts. A well-balanced combination of antioxidants works better than just one antioxidant due to its synergistic action.
Below are some simple tips to care for your eyes:
• Wear ultraviolet protective sunglasses when you are outdoors.
• Individuals with diabetes should keep their blood sugar level under control as they are more likely to develop a cataract.
• Increase consumption of green leafy vegetables, legumes and berries.
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| Q2: |
I have been wearing contact lens for a couple of months and recently, I experience eye discomfort and dryness. Almost every 30 minutes I will need to apply eye drops to keep my eyes moist. How can I put an end to this or at least reduce the frequency? |
A2:
Eye discomfort and dryness are common complaints among contact lens users. Individuals wearing contact lens may suffer from dryness because the lens absorb the tears and cause protein deposition on lens surface. The eye normally needs tears for lubrication and with contact lens wear, this lubrication is even more essential. Furthermore, factors such as humidity, temperature and infrequent blinking (while reading or using the computer) can exacerbate signs and symptoms of dryness among contact lens users. Long span of contact lens is also a possible cause of eye discomfort and dryness.
Bilberry, eyebright and lycium are traditional herbs beneficial for nourishing and strengthening the eye. Bilberry improves capillary blood flow in the eyes and increases the generation of enzymes responsible for energy production in eyes. Meanwhile, eyebright helps relieve itchy and irritated eyes. Lycium is rich in carotenoids and may help to prevent free radical damage to the cells due to its antioxidants actions.
Eat plenty of fresh, raw, green and leafy vegetables. Apricots, mangoes and carrots are elixirs for the eyes. Apart from that, contact lens users with dry eyes may use daily disposable lenses to decrease deposit build-up which in turn leads to a decrease in the symptoms.
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| Q3: |
I have been experiencing eye soreness and itchiness for about 3 months. I sleep for about 8 hours everyday but the tiredness and redness never subside. Please help. |
A3:
From what you have explained, you might be having dry eyes. Dry eyes are caused by lack of tears which are necessary for the normal lubrication of your eyes. This is the reason why you are experiencing soreness, irritation and redness. There may be also difficulty reading for long periods of time, burning and excessive tearing.
Factors contributing to this condition include aging, cigarette smoking, sun exposure as well as certain illnesses and medications. Students, drivers and working executives are usually involved in long hours of eye-straining activities which in turn cause the eye health to deteriorate. Studies have found that the majority of computer users experience some eye or vision problems.
Vitamin A is great for your eyes and will help you maintain healthy vision. Foods rich in vitamin A include carrots, yams and dark leafy greens. Take short breaks after long hours of reading or working in front of the computer. Try rubbing the palms of your hands together and place it over your closed eyes. This will help to relax the eye muscles.
On top of diet and lifestyle, you can consider taking bilberry, eyebright and lycium. Bilberry extract has been shown to improve visual acuity in dim light while eyebright helps relieve itchy and irritated eyes. Those with poor night vision and blurred vision can benefit from lycium which is rich in carotenoids. Lastly, get your eyes checked regularly by an optometrist.
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