50 % of vision loss all over the world are caused by cataract.
In Japan, 30 % of 40s have cataract, the rate increases with age, and almost 100 % of 80s have cataract.
Progression of cataract makes the visual field yellowish. Yellowish visual field makes it difficult to recognize blue light. The fire of oven is blue that is difficult to recognize whether it is on or not, and that causes the risk to ignite clothes.
Let’s check if you have cataract or not!
Q. What animals are drawn in the circle? (Fig. 1)
A. There are 3 animals.
If you can’t see a bird, there is a high possibility that you have severe cataract.
If you can’t see a rabbit, there is a possibility that you have moderate cataract.
If you can’t see a dog, there is a possibility that you have slight cataract (Fig. 2).
Vitamin C is effective for cataract
According to a research, the group of people who take more vitamin C had 40 % less risk of cataract development than the group of people who take less vitamin C.
The food rich in vitamin C is paprika, which contains twice the amount of vitamin C in lemon.
Paprika also contains vitamin P which prevents the breakdown by heating so that the density of vitamin C is kept high even if cooked.
A half of paprika a day achieves the daily required amount of vitamin C.
Surgery for Cataract
Progressed cataract should be operated.
The surgery for cataract is finished within 10 minutes if the surgeon is skilled.
(1) Insert a thin tube and break cloudy part of lens with ultra-sound (Fig. 3).
(2) Remove the broken lens (Fig. 4).
(3) Implant an artificial lens (Fig. 5).