Sunlight is one of the greatest threats to your eyes. Studies show that exposure to bright sunlight may increase the risk of developing cataracts, age-related macular degeneration and growths on the eye, including cancer.


New study finds that those who have cataract surgery to correct visual impairment live longer than those who do not have the surgery


These are common symptoms of Computer Vision Syndrome, and we hear them every day from patients. In daily life, both children and adults use computers throughout the day for work, school, and web surfing.

Over-the-counter Color Contact Lenses May Contain Chemicals Harmful to Eyes

If you’re thinking of getting decorative contact lenses online, you might want to think twice. In fact, be afraid. Be very afraid. It’s not worth the risk to your vision. The American Academy of Ophthalmology has issued a warning about over-the-counter cosmetic contact lenses after a new study found that several varieties tested positive for chlorine and other harmful chemicals. These lenses can harm the eyes by causing corneal ulcers or keratitis. Both can result in scarring that impairs vision or causes blindness. Researchers from Japan, where decorative contact lenses are very popular, published a paper in September that found chlorine and iron in several types of non-prescription colored contact lenses. Researchers say the chemicals may come from colorants used to tint and create patterns on the lenses. Their study also noted that colorants printed or pressed onto some decorative lenses create an uneven texture that could scratch the front of the eyes, potentially increasing the risk of infections that could cause blindness. Four of the five lenses in the study are not available legally in the United States because they are not approved by the Food and Drug Administration. However, many decorative lenses of unknown origin can be bought online without a prescription.

Study shows that the overnight use of the OrthoK lens was more effective at inhibiting axial eye growth and myopia progression than daytime wear of a conventional rigid gas-permeable (GP) lens.​

For this prospective study, the researchers employed a contralateral-eye crossover design. The 26 children in the study were fitted with an OrthoK lens in one eye for overnight wear and a GP lens in the contralateral eye for daytime wear. This protocol was followed for six months. After a two-week washout period, the lens/eye combination was reversed, and the lenses were worn for an additional six months.GP lens–wearing eyes showed progressive axial length growth throughout the study. After the first six months of lens wear, axial length had increased by 0.04 ± 0.06 mm in the GP eyes but did not change in the OK eyes. In the second six-month period, OK eyes again showed no change in axial length, while axial length increased by 0.09 ± 0.08 mm in the GP eyes.​


American Eye Center Vietnam

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Phone: +84-28-5413 6758 Clinic/ +84-28-5413  8810 Optical