607-331-0312

Customer Service

enquiry@eyeshop.com.my

Email

607-331-0312

Customer Service

enquiry@eyeshop.com.my

Email

Johor Bahru, Johor, Malaysia

Location

607-331-0312

Customer Service

enquiry@eyeshop.com.my

Email

Educational

Things you should know about optics.

Types of Eyes Defect

What are the most common types of eye defects

  • MYOPIA or NEARSHIGHTED. Myopia occurs when the eyeball is too long, relative to the focusing power of the cornea and lens of the eye.

This would cause the person in having blurred vision looking at objects in the distance.

  • HYPEROPIA or FARESIGHTED. This vision problem occurs when light rays entering the eye focus behind the retina, rather than directly on it. This would cause having to focus more when come to seeing near objects.

 

ASTIGMATISM. This condition occurs when the cornea or the lenticular lens is not round but oval in shape. This will split the light rays into 2 focusing point in the eyes.As a results the person will see a distorted objects both far and near.

PRESBYOPIA. This condition occurs when the focusing ability of the eye reduces with age and normally starts at 40 years old. This will cause the person having difficulty looking at near object.

How Do Tears Work?

When you blink, a film of tears spreads over the eye. This keeps the eye’s surface smooth and clear. The tear film is important for good vision.

The tear film is made of three layers:

  • – An oily layer
  • – A watery layer
  • – A mucus layer
  •  

Each layer of the tear film serves a purpose.

The oily layer is the outside of the tear film. It makes the tear surface smooth and keeps tears from drying up too quickly. This layer is made in the eye’s meibomian glands.

The watery layer is the middle of the tear film. It makes up most of what we see as tears. This layer cleans the eye, washing away particles that do not belong in the eye. This layer comes from the lacrimal glands in the eyelids.

The mucus layer is the inner layer of the tear film. This helps spread the watery layer over the eye’s surface, keeping it moist. Without mucus, tears would not stick to the eye. Mucus is made in the conjunctiva. This is the clear tissue covering the white of your eye and inside your eyelids.

Normally, our eyes constantly make tears to stay moist. If our eyes are irritated, or we cry, our eyes make a lot of tears. But, sometimes the eyes don’t make enough tears or something affects one or more layers of the tear film. In those cases, we end up with dry eyes.

Dry Eyes

Dry Eye Causes

People tend to make fewer tears as they get older due to hormonal changes. Both men and women can get dry eye. However, it is more common in women—especially those who have gone through menopause. Here are some other causes of dry eye.
  • Certain diseases, such as rheumatoid arthritis, Sjögren’s syndrome, thyroid disease, and lupus
  • Blepharitis (when eyelids are swollen or red)
  • Entropion (when eyelids turn in); ectropion (eyelids turn outward)
  • Being in smoke, wind or a very dry climate
  • Looking at a computer screen for a long time, reading and other activities that reduce blinking
  • Using contact lenses for a long time
  • Having refractive eye surgery, such as LASIK
  • Taking certain medicines, such as:
  • Diuretics (water pills) for high blood pressure
  • Beta-blockers, for heart problems or high blood pressure
  • Allergy and cold medicines (antihistamines)
  • Sleeping pills
  • Anxiety and antidepressant medicines
  • Heartburn medicines

How Is Dry Eye Treated?

1. Adding Tears

Your ophthalmologist might tell you to use artificial tears. These are eye drops that are like your own tears. You can use artificial tears as often as you need to. You can buy artificial tears without a prescription. There are many brands. Try a few until you find a brand that works best for you.

If you use artificial tears more than six times a day or are allergic to preservatives, you should use preservative-free tears. This is because if the tears with preservatives are used a lot, these chemicals may start to irritate your eyes.

2. Saving Tears

Your ophthalmologist may suggest blocking your tear ducts. This makes your natural tears stay in your eyes longer. Tiny silicone or gel plugs (called punctal plugs) may be inserted in your tear ducts. These plugs can be removed later as needed. Your ophthalmologist could also recommend surgery that permanently closes your tear ducts.

3. Dry Eye Prevention Tips

  • Try not to use a hair dryer, if possible.
  • Stay away from very warm rooms. In the winter, add moisture to the air with a humidifier. Or put a pan of water near your heater or radiator.
  • Protect your eyes from drying wind by wearing wrap-around glasses outside.
  • Talk to your ophthalmologist about adding omega-3 fatty acids to your diet for dry eye relief. They are found naturally in oily fish (such as salmon, sardines, tuna, trout, and anchovies), and in flaxseeds. Omega-3 fatty acids can be added as a dietary supplement (pill or tablet).
  • Do you wake up with dry and scratchy eyes? Use artificial tear ointment or thick eye drops just before you go to bed.