Latest Vision Articles

1. Some aspects of LASIK and PRK

A surgery of laser vision correction can reshape the cornea using a cool beam of light, improving visual acuity. The laser performs in several ways, flattening the cornea, steepening the cornea or smoothing out corneal irregularities.

2. Costs of refractive surgeries

While calculated at per eye, the cost of LASIK can be quite different from one surgeon to another. If the patient wants to have two eyes corrected, the cost doubles. In addition, LASIK involving new technologies such as wavefront and bladeless also requires higher prices.

3. Basic aspects of contact lenses

According to different eye conditions such as light sensitivity, it takes varying periods to adjust to contact lenses. In general, rigid gas permeable contacts require more time for adaption than soft ones. Most contacts in different materials need daily care, while daily disposable contact lenses and some extended wear contacts can be discarded on removal.

4. Common questions of bifocal contact lenses

With tricky prescription and fitting, bifocal or multifocal contact lenses have been created to offer both close up and distance vision. These multifunctional contact lenses also require an adaption period as long as six weeks, during which night glare, shadows and haziness may occur.

5. Strabismus surgery explanation

Strabismus needs early treatment because it is hard to recover misaligned eyes with a perfect result. Children above 6 months are too late for perfect strabismus treatment. Sometimes two or more strabismus procedures within a decade can be more effective.

6. Details of LASEK

As a new variation of PRK, laser epithelial keratomileusis (LASEK) have some fundamental differences from LASIK and PRK. LASIK cuts a thin flap into the eye’s surface with a microkeratome cutting tool or a special laser and applies laser energy to the eye under the flap.

7. Diving masks and swimming goggles

People generally wear scuba diving masks and swim goggles when swimming, diving, snorkel or other explore underwater. Light travel condition in air is different from that underwater. Objects watched underwater are larger and closer than they actually are. In addition, light rays can not travel effectively from eyes to target object through water. Masks and swim goggles provide a chamber of air in front of the eyes that enables the eyes to see things clearly and correctly. This is the reason why people need masks or swim goggles underwater.

8. LASIK enhancement for better results

Although the reported satisfactory rate of LASIK surgery receivers reaches as high as 95%, there are still patients who can not achieve crystal-clear, 20/20 vision after only one procedure.

9. Kinds of LASIK complications

Even if performed by experienced surgeons, LASIK may cause rare complications. In fact, LASIK is only one of the refractive surgeries. Others include LASEK, PRK and implantable lenses.

10. Complications of cataract surgery

Some patients may suffer floaters after a cataract surgery. In fact the procedure itself never causes floaters. These people actually have floaters before the surgery, which only become noticeable once the cloudy cataract is removed by the procedure.