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The Union: Featuring Dr. Munoz and New Ocular Treatments

The Chan family welcomes a new optometrist with new solutions to improve ocular health.
Click here read more

Dr. Lisa Moon KNCO Newstalk, 'Your Health'Featuring Dr. Tiffany Chan and Dr. Tina Khieu

In a captivating recording, viewers have the opportunity to delve into
the world of eye health with two esteemed experts, Dr. Tiffany Chan and Dr.
Tina Khieu. Click here to read more


KNCO Newstalk 830 with Jon Katis featuring Dr. Tiffany Chan
  • Promoting Eye Health at a Young Age

    Dr. Tina Khieu

    According to the Centers for Disease Control, just over half (51.9%) of children aged 3-5 years old have never had their vision tested.

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Corrective Lenses

toddler wearing glasses

Corrective lenses are used to correct deviations, adjust focal points or neutralize other anomalies that impact the eyes’ ability to focus an image on the retina. To do this, the lenses must be the correct type and of the right power. Strength – which is expressed as diopeters – relies on the material of the lens, as well as the slope of the curve that is grounded into the lens. For instance, if the person is nearsighted and has trouble viewing objects far away, the lens will be concave, or thicker at the edges than in the middle, to allow for distant objects to come closer to the eyes. On the other hand, if the individual is farsighted and has a problem seeing objects up close, the lens will be convex, or thinner at the edges and thicker in the center. Convex lenses, unlike concave ones, bend toward the focal point, which makes the image appear larger than the object actually being seen.