Latest Vision Articles

1. Three types of cataracts and their treatments

Cataracts refer to the clouding on the eye’s natural lens, which is caused by the proteins’ abnormal clustering on the lens. While the lens is responsible for keeping clear vision, cataracts make it hard to see. Cataracts are usually seen on old people, since their ever well-arranged proteins are more probably to clump together as they age.

2. Features of polycarbonate lenses

Since its creation in 1970s, polycarbonate has been widely used in aerospace applications, helmet visors of astronauts and space shuttle windshields. Polycarbonate lenses are thinner, lighter and 10 times more impact-resistant than traditional plastic lenses. In addition, polycarbonate lenses can offer 100% UV protection from harmful sun rays.

3. Kinds of cataract surgeries and their costs

Even though the cost of a cataract surgery varies from procedure types, different IOLs and cost-of-living standards, it can be as high as $4,000 per eye. Currently, single monofocal IOLs are considered to be medically necessary, since the patient always need an alternative lens for normal vision.

4. Bell’s palsy that paralyzes eyelid

One disease that may affect eyes is named Bell’s palsy, which usually occurs suddenly and happens to one people out of 60. This disease acts much like a stroke, and the affected side of face can not move. The temporarily paralyzed facial nerve can not control the face and lip on the affected side.

5. How to treat regular and special blepharitis

Featuring chronic inflammation of the eyelid, blepharitis is a relatively common ocular condition that varies greatly in severity among different patients.

6. Contact lenses for special eye problems

Some people have special eye problems and are not suitable to wear contacts. They require particular fitting by ECPs. Some ECPs specialize in these hard-to-fit patients. They provide more expertise and advanced equipments for contacts fitting.

7. Contact lenses for personalized needs

People may need customized contact lenses if they have special eyes or high astigmatism, or they just need additional comfort and particular clear vision. Both RGPs and soft lenses are available for people’s personalized needs.

8. What should you know about regular astigmatism

Most people are familiar with astigmatism, which is actually recognized as one of the three most typical visual refractive errors.

9. Four types of visual field testing methods

Also called side vision, one people’s full horizontal and vertical vision range can be determined by a visual field test, which also detects potential blind spots in the visual field. Some eye and brain disorders are responsible for these visual field defects. Glaucoma, toxic exposure and retina damage can cause optic nerve damage and blind spots. Brain strokes and tumors may also affect the visual field.

10. Variations of computer eyeglasses for CVS

Computer focus has unique visual demands that are unlike with other activities, so that a prolonged computer use may bring eyestrain and fatigue more easily. Some of the people under 40 can not remain accurately focused on the computer screen for a long period, or get tired from the frequent switch between the screen and the keyboard. Presbyopia on people above 40 may also cause CVS symptoms such as blurry vision and headache.