Diet recipes

With the promotion and popularization of all kinds of electronic products, our eyes become more and more busy, and the daily "work" time is longer and longer. Long term overuse of eyes and incorrect eye protection have made many people's eyes suffer from problems.

Cataract is a kind of eye disease that middle-aged and old people suffer from, but these years, cataract patients are younger. How can you tell if you have cataracts? How can you prevent cataracts?

What are the early symptoms of cataract?

I. early symptoms of cataract

1. hemeralopia or nyctalopia

If the first lens opacity in the central part, the daytime light intensity, light entering the eye pupil shrinks, blocked, resulting in hemeralopia; such as lens opacities in the periphery, night light into the equatorial retina is blocked, and the equatorial retina

The visual cells are rod-shaped or liquid vision, therefore there will be night blindness.

2. blurred vision

Cataract patients blurred vision, sometimes feel the light around the aperture, and the object is not bright enough color. If you drive at night, you will feel that the headlights from the opposite side of the car are too dazzling and uncomfortable or irritable. But in general, the development of symptoms is quite slow and depends on the location and development of the lens's most turbid areas.

3. monocular multi vision

In the early part of lens opacity, cataract, partially transparent, through which light projected onto the retina image will produce double or multiple image.

4. shadow at sight

In the early stage of cataract, partial opacity of the lens is located in the pupillary region, and the fixed or unchanged punctate or patchy shadow can appear in front of the eye. It is with vitreous body opacity caused by floaters is different, the latter's shadow is movable, although the range is not big, but hidden, changeable shape.

5. color vision abnormalities. At the early stage of cataract, due to water absorption and swelling of lens epithelial cells, the gap increased and filled with particles of light through water droplets, it refracts light and color, commonly known as the rainbow.

6. suddenly reduce symptoms of presbyopia

Some elderly people usually need to wear glasses to read the newspaper, but suddenly, they found themselves do not need to wear glasses to see very clearly, some elderly people are very happy, in fact, this is not a good sign, this is because the primary senile cataract, lens convex refractive point increase, nearly for the sake of change, is one of the early symptoms of cataract.

Two. The symptoms of cataract

1. early onset: the crystalline surrounding cortex of cataract patients is wedge-shaped and turbid, with a tip from the center and normal vision. Progress to the pupil area, vision gradually decline, cataract symptoms can appear monocular diplopia, multi view, there are shadows at the moment.

What are the early symptoms of cataract?

2. expansion period: the symptoms of cataract can be crystalline cortex, mostly change white, turbid, visible water fissure phenomenon, shallow anterior chamber. There called iris projection phenomenon oblique illumination inspection, cataract eyesight will be decreased significantly.

3. maturity: the depth of the anterior chamber of the cataract patients returned to normal. The iris projection of the cataract patients disappeared, and the visual acuity index was below /1 meters. It was also the symptom of cataract.

4., excessive maturity: Crystal cortex liquefaction, calcification, crystal nucleus sink, the anterior chamber becomes deeper, the iris has tremor. Because of the dissolution of the crystalline cortex, the symptoms of cataract can lead to immunological uveitis or crystalline glaucoma.

Three. What can I eat to prevent cataracts?

1. astaxanthin

Animals such as salmon, shrimp, crab, fish eggs, etc., and fruits and vegetables in orange content. Can prevent ultraviolet UV light, enhance and strengthen the ability of ciliary muscle blood circulation eye lens absorption.

2. vitamin C

Green vegetables such as broccoli, green pepper, balsam pear; fruit such as citrus, berries and guava. Strong antioxidant can protect the lens, making collagen and eye melanin.

3. vitamin A and carotenoids

Pig liver, eel, carrot, pumpkin, leek and so on, can promote metabolism. But pay special attention to vitamin A belongs to fat soluble ingredients, and with healthy oil to eat more can increase the absorption rate.

4. vitamin E

Such as seafood, eggs, olive oil, linseed oil, nuts, spinach, asparagus and kiwi fruit. Can form the cell membrane, prevent eye cell aging.