Vitamin D deficiency is a common health problem among individuals, leading to a group of disturbing symptoms that require attention to avoid worsening the condition. In the following report, Dalili Medical reviews the effect of vitamin D on eye health, according to what was stated on our website.

**What is the required amount of vitamin D for the body?**

The recommended daily amount of vitamin D varies according to the person's age, and is as follows:

- From birth to 12 months: 400 IU
- Children from 1 to 18 years: 600 international units
- Adults from 19 to 70 years: 600 IU
- Adults over 70 years: 800 IU
- Pregnant and breastfeeding women: 600 international units

**People most susceptible to vitamin D deficiency:**

- The elderly (because the body does not produce vitamin D efficiently when exposed to sunlight)
- Breastfed infants (because breast milk does not contain sufficient amounts of vitamin D)
- People with dark skin
- People with certain health conditions such as chronic liver or kidney disease, cystic fibrosis, Crohn's disease, or celiac disease
- Individuals who suffer from obesity or who have undergone gastric bypass surgery
- People with osteoporosis or hyperactivity of the parathyroid glands
- People who take medications that affect vitamin D metabolism such as cholestyramine (cholesterol medication), anti-seizure medications, cortisone, antifungal medications, or HIV medications.

What is the vitamin whose deficiency leads to poor vision?

Vitamin A deficiency can occur as a result of an unbalanced diet or due to problems with the liver or absorption of nutrients. Night blindness (blindness) is one of the early symptoms of a deficiency of this vitamin, and it may eventually develop into complete blindness.

What is the vitamin that promotes healthy vision?

Vitamin A is the vitamin responsible for promoting healthy eyesight. Carrots are a rich source of beta-carotene and vitamin A, which contribute to eye health and may have an effective role in treating macular degeneration and white water (cataracts). Carrots also contain abundant amounts of vitamin A and rhodopsin.

Does vitamin deficiency lead to blurry vision?

Vitamin A deficiency can lead to vision disturbances, such as blurry eyes and difficulty focusing on objects, which are usually early symptoms. Other symptoms can include dry skin and dry eyes, as well as delayed pregnancy and decreased fertility in men and women.

What vitamins are important for eye health?

Vitamins C, E and zinc are essential vitamins for eye health.

Does vitamin deficiency lead to poor vision?

In general, symptoms of vitamin A deficiency appear only when its level in the body decreases significantly. Therefore, it is preferable to conduct a blood test to detect a deficiency of this vitamin. When symptoms appear, they may include poor vision.

Does vitamin D deficiency affect eye health?

Vitamin D plays an important role in overall body health, including eye health. Therefore, a vitamin D deficiency may increase the risk of eye problems, such as blurring, optic nerve damage, and loss of central vision.

What are the symptoms of vitamin D deficiency?

 

The main symptoms of vitamin D deficiency include:

- Feeling the presence of a foreign body in the eye.
- Burning sensation in the eye.
- Eye redness.
- The eyelids stick together when waking up as a result of secretions that form during sleep.
- Blurred vision.
- Increased tear production.

Dry eye syndrome in people with vitamin D deficiency is associated with a low level of cathelicidin, a protein that helps the tear glands produce tears necessary to moisturize the eyes.

Vitamin D deficiency not only causes dry eyes and poor vision, but also increases the risk of infectious diseases such as conjunctivitis, as cathelicidin plays a role in fighting microbes, and when its levels decrease, the eyes become more vulnerable to bacteria, viruses, and germs.

Other symptoms of vitamin D deficiency include:

- Anxiety and depression.
- Pain in the bones and muscles.
- Nausea and fatigue.
- Recurring infections.
- Slow healing of wounds.

Low vitamin D levels are also associated with an increased risk of the following conditions:

- High blood pressure.
- Heart disease.
- Diabetes.
- Cancer.
- Multiple sclerosis.
- Osteoporosis, a condition that leads to weak bone structure and increased susceptibility to fracture.

**How ​​is vitamin D deficiency diagnosed?**

 

Our endocrinologist will order a blood test to determine your vitamin D levels. The most common test is the 25-hydroxyvitamin D test, which requires a blood sample to be drawn from a vein using a needle. If your test result is less than 12 nanograms per millimeter (ng/mL), this indicates that you have a vitamin D deficiency. Your doctor will determine the appropriate level of vitamin D based on your age, but a level of 20 ng/ml to 50 ng/ml is usually considered sufficient.

**Inflammation of the optic nerves and its relationship to vitamin D**

 

Optic neuritis is an inflammatory disorder resulting from an immune response that affects the optic nerve, resulting in loss of vision usually due to swelling and destruction of the myelin sheath around the axons in the nerve. Many studies have shown a relationship between this inflammation and vitamin D deficiency, through several factors:

1. Damage from vitamin D deficiency can contribute to nerve destruction in multiple cases, leading to sudden partial or total loss of vision, swelling of the optic disc, or an asymmetrical or solitary hair loss defect.

2. Single patient studies have shown a reduction in the thickness of the retinal nerve fiber layer due to total loss and cell volume, which occurs within six months of vitamin D deficiency.

3. Vitamin D plays an important role in the formation of bones and mineralsOne study suggested that it has an effect on the immune and central nervous system, affecting growth and the ability to regulate immunity.

4. Vitamin D supplements can reduce inflammatory leakage by inhibiting the function of cells that affect vision.

5. Vitamin D deficiency is considered one of the main factors causing macular degeneration, which affects vision over time, and this effect usually appears after the age of forty.

**Age-related macular degeneration**

Macular degeneration, also known as macular degeneration, is an age-related condition that affects a specific area of ​​the retina responsible for central vision. It should be noted that some studies indicate that low levels of vitamin D may be linked to the onset of macular degeneration in the early stages, due to the anti-inflammatory properties of vitamin D.

**Dry eye syndrome**

Vitamin D deficiency can increase your risk of dry eyes, which can cause blurred vision and eye fatigue. This is due to vitamin D's ability to reduce eye inflammation and enhance eye hydration.

**Glaucoma**

Glaucoma, also known as glaucoma, is a condition that causes damage to the optic nerve. Vitamin D deficiency has been found to be associated with the development of primary open-angle glaucoma, the most common type of glaucoma.

**Diabetic retinopathy**

Diabetic retinopathy is a condition that negatively affects the retina as a result of diabetes, which may lead to partial or complete loss of vision. Some studies indicate that vitamin D deficiency may increase the risk of retinopathy in people with type 1 diabetes.

**What is the recommended daily value of Vitamin D?**

It is recommended to take the recommended daily amount of vitamin D according to the age group, to maintain its levels within the normal range and avoid deficiency. The recommended values ​​are explained below:
- 0 to 12 months: 400 IU.
- From 1 to 70 years: 600 IU.
- Over 70 years: 800 IU.

**Does vitamin D deficiency affect eye health?**

 

Vitamin D plays a vital role in maintaining overall body health, including eye health. Therefore, a deficiency of this vitamin may increase the risk of eye problems, such as feeling blurry, optic nerve damage, and loss of central vision.

**Does vitamin D deficiency lead to blurred vision?**

 

Blurred vision, or blurred vision in one or both eyes, is a symptom associated with several eye problems. Among the possible causes is vitamin D deficiency, which may increase the risk of macular degeneration and deterioration of vision. Although research on the effect of vitamin D on the development of macular degeneration still needs to be studied further, there is evidence that maintaining adequate levels of this vitamin may have a role in preventing this disease.

**The importance of vitamin D for eye health**

 

Vitamin D contributes to rejuvenating eye health by reducing inflammation and improving vision. Some recent studies have shown that increasing vitamin D intake may help prevent age-related diseases, especially vision loss and blindness.

**Causes of blurred eyes**

 

There are many causes that may lead to blurring of the eye, the most prominent of which are: refractive errors such as myopia, farsightedness, and astigmatism, in addition to corneal injuries, age-related macular degeneration, cataracts, corneal opacity or scarring, infectious retinitis, migraines, inflammation of the eye. Optic nerve, retinopathy such as diabetic retinopathy, stroke, and any trauma or injury to the eye.
**Vitamin supplements for eye health**

 

**Vitamin A**
Vitamin A is considered one of the most important nutrients necessary for eye health. It is an essential component in the formation of photoreceptor cells in the retina, which helps us see in low-light conditions and enhances overall vision. It also supports the health of the cornea, which is the outer layer of the eye. Foods rich in vitamin A include carrots, sweet potatoes, spinach, kale, eggs, and liver.

**Vitamin C**
Vitamin C is an antioxidant that protects our eyes from oxidative stress caused by free radicals. It also supports blood vessels in the eye and is associated with a reduced risk of cataracts and age-related macular degeneration (AMD). Citrus fruits, strawberries, bell peppers, and broccoli are excellent sources of vitamin C.

**Vitamin E**
Vitamin E works together with Vitamin C as an antioxidant, helping prevent or delay cataracts and AMD. Nuts, seeds, vegetable oils, and leafy vegetables are rich in vitamin E and should be included in the diet for eye health.

**Vitamin D**
Vitamin D plays a role in reducing inflammation in the eye and is associated with a lower risk of age-related macular degeneration (AMD). Vitamin D is produced in our skin when exposed to sunlight, and can also be obtained from fatty fish such as salmon and mackerel, fortified dairy products, and nutritional supplements.

**Vitamin B complex**
Some B vitamins contribute to eye health. Vitamin B1 (thiamin), B2 (riboflavin), and B3 (niacin) help maintain healthy eye nerves and may reduce the risk of cataracts. Sources of B vitamins include whole grains, lean meats, fish, and legumes.

**Vitamin K**
Vitamin K contributes to maintaining proper blood clotting and can help prevent excessive bleeding in the eye. It is found in green leafy vegetables, cauliflower, and Brussels sprouts.

**Lutein and Zeaxanthin**
Carotenoids such as lutein and zeaxanthin are effective in reducing the risk of chronic eye diseases. These compounds act as antioxidants, protecting the eyes from lightHarmful blue light and reduce the risk of age-related macular degeneration (AMD) and cataracts. Green leafy vegetables, corn, and egg yolks are excellent sources.

**Omega-3 fatty acids**
Omega-3 fatty acids, especially DHA and EPA, are essential for eye health and contribute to the proper functioning of the retina. They can help reduce dry eye symptoms and may reduce the risk of AMD. Fatty fish such as salmon and sardines, flaxseeds, and chia seeds are excellent sources of omega-3 fatty acids.

**Best Vitamin D Tablets**
Limitless Osofortin pills are considered one of the best vitamin D options for women, and are available in the form of coated tablets.

**Vitamin D3:**

- **Davalindi**: Vitamin D pills with a concentration of 1000 IU, contain vitamin D3 (cholecalciferol) and come in the form of tablets.

- **Vidrop**: Available in the form of drops, it contains vitamin D3 (cholecalciferol) at a concentration of 2800 units per 1 ml.

**One Alpha medicine**: Available in the form of capsules and oral drops, it contains alfacalcidol. The capsules come in strengths of 0.25 mcg, 0.5 mcg, and 1 mcg, while the drops are at a concentration of 2 mcg per 1 ml.

**Osofortin**: It is considered one of the best types of vitamin D available in pharmacies. It comes in the form of coated tablets and contains vitamin D2 (ergocalciferol) in two concentrations: 50,000 units and 10,000 units.

- **Osophoritin Original**: It is also available in the form of coated tablets. It contains vitamin D3 (cholecalciferol) at a concentration of 5000 units.

**D3 Candy**: It is considered the best chewable vitamin D. It comes in the form of chocolate pieces that contain vitamin D3. Available in two types:
 - **D3 Vitamin D Candy for Adults**: Each tablet contains 1000 IU of the vitamin.

- **Bon Care**: Vitamin D medicine for adults, available in the form of capsules containing alfacalcidol, in concentrations of 0.25 micrograms, 0.5 micrograms, and 1 microgram.
**Names of vitamin D injections**

1. **Devarol S**
 They are injections given intramuscularly, containing vitamin D3 (cholecalciferol), and are available in a concentration of 200,000 IU.

2. **Decaprino**
 It is considered one of the quickest treatments for vitamin D deficiency, as it contains cholecalciferol (vitamin D3) at a concentration of 200,000 IU.

3. **Sterogyl**
 They are injections given intramuscularly, containing vitamin D2 (ergocalciferol), and are available at a concentration of 600,000 IU, intended to support bone health.

**Can dizziness resulting from vitamin D deficiency be treated?
Some doctors have reported that vision problems resulting from vitamin D deficiency can be improved by increasing the levels of this vitamin in the body, through:

- Take vitamin D supplements according to the doses determined by the specialist doctor.
- Adequate exposure to sunlight, as the body naturally produces vitamin D.
- Follow a balanced diet rich in vitamin D, such as eating fatty fish, milk, and egg yolks.