External symptoms of macular degeneration?

summary

Macular degeneration is usually the natural result of aging degeneration. With the increase of age, retinal tissue degenerates and becomes thinner, resulting in the decline of macular function. In 10% of patients with macular degeneration, the microvessels responsible for supplying nutrition to the retina will leak and even form scars. New abnormal blood vessels are also very common. The fluid leaking from the blood vessels will damage the macula, cause visual distortion and vision loss. Excessive scars will cause a significant decline in central vision, affect the quality of life and even become blind.

External symptoms of macular degeneration?

In the early stage, the central visual acuity was slightly damaged, even remained normal or nearly normal for a long time. The visual field can detect 5-10 ° The central disc is more dark, and it is easier to detect with cyan and yellow visual markers. one hundred and eighty ° Linear static visual field was 5-10 on each side ° Visual acuity decreased. Amsler's checkerboard test is often positive. Occasionally, hyperopia or amblyopia.

In the late stage (atrophic stage), the central visual acuity was severely damaged, and there were virtual absolute central scotoma. Under the ophthalmoscope, there were dense or confluent vitreous membrane warts and large areas of light gray atrophy. The boundary of the atrophic area became clear, with salt and pepper like spots scattered in it, and metal like reflection could also be seen. In the early stage of fluorescein angiography, the atrophic area showed strong fluorescence, and disappeared with the weakening and disappearance of background fluorescence.

During the whole course of angiography, the fluorescent spot did not expand, suggesting that it was caused by pigment epithelium atrophy. However, in some cases, both strong and weak fluorescent spots appeared in the atrophic area, indicating that besides the atrophy of pigment epithelium, there were atrophy and occlusion of choroidal capillaries. Atrophic degeneration has a slow onset and a long course. It is difficult to separate the early and late stages. In addition, individual differences are large, so the time from early stage to late stage varies, but the degree of bilateral fundus lesions is basically symmetrical.

matters needing attention

After suffering from this disease should pay attention to the appropriate rest, avoid physical fatigue. Use less eyesight to avoid eyestrain. Maintain adequate sleep, insomnia or neurasthenia, should be given every night stability or sleep and pass. Patients with severe nocturnal pain can take Qutong tablets before going to bed. Try not to smoke and drink less alcohol. Age related macular degeneration should eat more corn. Nutritional analysis found that. It contains protein, carbohydrate, carotene, lutein and zeaxanthin, especially zeaxanthin. Eating more corn can resist eye aging and effectively prevent age-related macular degeneration. However, because lutein and zeaxanthin are fat soluble, it is best to add oil and cook when eating to facilitate absorption.