What causes blindness milky or cloudy eyes in a week old lamb?

There are several potential causes of blindness or milky/cloudy eyes in a week-old lamb. Here are some of the most common ones:

1. Bacterial Infections: Bacterial infections, such as contagious ovine keratoconjunctivitis (commonly known as pinkeye), can cause inflammation and opacity in the cornea, leading to milky or cloudy eyes.

2. Viral Infections: Viral infections, such as bluetongue or Rift Valley fever, can also cause eye problems, including cloudiness or blindness.

3. Trauma: Physical injuries to the eye, such as scratches or lacerations, can result in corneal damage and subsequent cloudiness.

4. Nutritional Deficiencies: A deficiency of certain nutrients, especially vitamin A, can lead to eye problems, including night blindness and corneal ulcers.

5. Congenital Defects: Some lambs may be born with congenital eye defects, such as cataracts or other abnormalities, which can cause blindness or cloudiness.

6. Toxins: Exposure to certain toxins, such as those found in some plants or chemicals, can also cause eye problems in lambs.

If you notice milky or cloudy eyes in a week-old lamb, it's important to consult a veterinarian as soon as possible for an accurate diagnosis and appropriate treatment. They will be able to determine the underlying cause and recommend the best course of action to protect the lamb's vision and overall health.