Cod liver oil can be taken by a 50 year old patient with blurry eyes, but it is not effective in treating blurry eyes.
Cod liver oil is vitamin AD capsule, by supplementing vitamin A and vitamin D can treat many diseases, such as night blindness, rickets and so on.
However, the above diseases usually do not cause patients to have blurred vision, patients with blurred vision need to carry out a detailed examination to find out the specific causes, common refractive errors, cataracts, macular degeneration, etc., these diseases through vitamin A and vitamin D supplementation is not effective in treating the effect.
For vision loss caused by cataracts, surgery is usually needed; vision loss caused by refractive error needs to be corrected by wearing glasses; vision loss caused by macular degeneration needs to be treated by intravitreal injection of drugs such as Ranibizumab.
It is recommended that 50-year-old patients with vision loss should go to the ophthalmology department of the hospital in a timely manner, and be guided to treatment by the doctor after identifying the cause.