Blurred and foggy feeling when wearing contact lenses

With the development of technology, the cost of contact lenses has decreased compared to before. In addition, contact lenses look better than ordinary glasses and do not burden the nose and ears, so more and more people choose to wear contact lenses. However, there will be some problems when wearing contact lenses. For example, students who wear contact lenses will experience blurred vision and foggy feeling, which will affect their vision and feel blurred. So why does this phenomenon occur? Let’s find out together.

There are several reasons for this phenomenon:

1. There may be dirt on the surface of the lens. You can take off the lens, check it, rinse it with care solution, and then try wearing it again.

2. Lens material problem.

3. First of all, we need to consider whether the degree of the contact lenses we wear is accurate. The degree directly affects the clarity of vision. However, the degree of frame eye examination is not equal to the degree of contact lenses. If myopia is above 400°, you should consider lowering the degree as appropriate, because the conversion of the two degrees is different.

3. The criticality of base curve selection. The wearing comfort of contact lenses is closely related to the base curve. Professionally speaking, the base curve refers to the radius of curvature of the optical center zone of the inner surface of the lens. Generally speaking, lenses with larger base curves have flatter curves, while lenses with shorter base curves have more curved curves. You must choose the correct base curve before wearing contact lenses. An inappropriate base curve is the main cause of lens slippage and can also cause blurred vision.

4. When you change contact lenses, the clarity will be different even if the degree is the same. This issue is more complicated and there are many reasons. One possibility is due to the aspherical design. There will be a slight difference in the degree conversion. Wearing aspherical lenses can increase the degree appropriately. The second is material problems. The refractive index and water content of the material are inversely proportional. An increase in water content may cause a slight decrease in visual quality.

5. There are deposits on the lenses. Generally, there are three common types of deposits on the lenses: protein deposits, lipids, and biofilms. These deposits affect the transparency of the lenses and cause fogging and blurriness. Cleaning the lenses with contact lenses every day is the key. The sources of the sediment: 1. Normal metabolic components and foreign body secretions in the eye. 2. Impurities in the air and contamination from fingers.

6. Excessive use of eyes, wearing contact lenses for a long time or wearing lenses in a dry indoor environment will more or less cause symptoms of eye fatigue, leading to dry glasses and blurred vision.

7. The lenses are worn upside down, either the front and back are worn upside down or the left and right eyes are worn upside down.

8. Contact lenses are a way to correct vision. While correcting vision, they also have an aesthetic effect. However, if they are worn improperly, they may cause eye discomfort, blurred vision, and eye congestion.

There are many reasons why wearing contact lenses can cause blurriness and fogging. We hope that the common problems listed above can help you. It is recommended that a professional optometrist conducts a detailed analysis to more correctly solve the problem.