Our two eyes - the amazing camera that sees the world (Eyes): Do we really know this?

You are reading this article using your eyes. Our eyes help us see the beauty of the world around us, recognize our loved ones, and avoid danger on the road. But have you ever wondered how complex and amazing the mechanisms that go on inside this tiny organ are? Today, we will talk about our eyes, which work like high-tech cameras.

How do we really see things?

This is very easy to understand. Think of our eyes as working like a camera. When we look at something, the light reflected from that object enters our eyes.

This light entering the eye passes through several parts inside the eye and is focused, just like a camera lens. This focused light goes and hits a screen-like part at the back of the eye. We call this the retina.

The retina contains millions of cells that are very sensitive to light. When light hits these cells, the light signals are converted into electrical signals. These electrical signals are then sent to our brain via the optic nerve, which acts like a data cable. The brain "reads" these signals and interprets what we see as an image. This entire process happens in the blink of an eye. Isn't it amazing?

What are the main parts of our eye?

Our eyes are a very complex organ. To function properly, all of these parts need to be healthy. Let's take a look at what these parts are and what they do.

What are the common eye diseases?

Just like any other organ in our body, our eyes can suffer from various diseases. Some of these are simple, while others can even cause permanent damage to our vision.

Refractive Errors

This is a common problem that many people have. This is when the light entering the eye is not focused exactly on the retina.

• Nearsightedness: Near-sightedness is the inability to see things clearly, but distant objects appear blurry. For example, a schoolchild may not be able to see the blackboard clearly.
• Farsightedness: Although distant objects can be seen clearly, doing close-up tasks, such as reading a book, can be difficult and the text appears blurry.
• Astigmatism: In this condition, light does not focus in one place, causing images to appear distorted and blurry.
• Presbyopia: A condition that usually affects many people after the age of 40. The flexibility of the lens of the eye decreases, making it difficult to read close objects, especially books and newspapers.

Age-related Eye Disorders

It is normal for the eyes to experience some changes as we age.

• Cataracts: A cataract is a clouding of the lens of the eye. This causes vision to gradually become blurred. Fortunately, this can be treated with a simple surgery.
• Glaucoma: This is a dangerous condition. The pressure inside the eye increases and damages the optic nerve. There may be no symptoms in the early stages. However, if left untreated, vision can be permanently lost.
• Macular Degeneration: This is also a common disease among older people. Damage to the central part of the retina causes a black spot to appear in the middle of objects when you look straight ahead.

Other illnesses

In addition to this, the eyes can also be affected by various infections, allergies, injuries, etc. Sometimes, other diseases such as diabetes can also damage the eyes.

How to recognize the symptoms of eye disease?

If there is a problem with your eyes, your body will give you various signals about it. It is very important to be aware of these symptoms.

• Red, itchy, or watery eyes.
• A liquid like mucus comes out of the eyes.
• Blurred vision or sudden loss of vision.
• Starting to see things in two (Double vision).
• Difficulty looking at bright light (Light sensitivity).
• Floaters are the appearance of black dots or threads floating before the eyes.
• Eye pain.
• Strabismus is the inability to keep the eyes straight and the vision is drawn to one side or the other.

If you have these symptoms, see a doctor immediately!

There are some symptoms that you should seek medical advice immediately if you notice, as they could be a sign of a serious condition.

• Sudden loss or severe reduction of vision in one or both eyes .
• If something gets stuck in your eye or if it feels like something is stuck inside your eye.
• If you get a burn around your eye or in your eye.
• If you see flashes of light before your eyes or if the number of floating black dots (floaters) suddenly increases.
• If one side of your vision seems to be covered by a black curtain.
• If you are vomiting with severe pain in your eyes.
• If your eyes are swollen, red, or bruised.

In such a situation, see your doctor as soon as possible. Or go to the Emergency Department (ETU) of the nearest hospital.

Things we can do to keep our eyes healthy

We don't say "take care of your eyes" for nothing. Our eyesight is a very precious thing. There are a few simple things we can do to protect it.

1. Get regular eye exams: Even if you don't need glasses, it's still important to have your eyes checked by an eye doctor every year or two. This can help detect diseases like glaucoma early.

2. Wear safety glasses: Wear safety glasses when doing work like welding, cutting metal, or playing sports. The damage that can be done to your eyes with a little carelessness can be very serious.

3. Avoid smoking: Smoking greatly increases the risk of developing diseases like cataracts and macular degeneration.

4. Get good nutrition: Green vegetables, fruits (especially those rich in vitamin A like carrots and sweet potatoes), and foods rich in omega-3s like fish are very good for eye health.

5. Maintain a healthy weight: Diseases like obesity and diabetes can damage your eyes. So, adopt a healthy lifestyle.

6. Don't ignore symptoms: If you notice any changes in your vision, pain, or anything unusual, don't ignore it. Talk to your doctor right away.

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