ReVision Optometry Blog

Should Vision in Both Eyes Be The Same?

Should Vision in Both Eyes Be The Same? by Brian Chou, OD, FAAO, FSLS August 15, 2020 Should vision in both eyes be the same?  Symmetry is common in nature.  For example, your arms and legs are probably the same approximate length.  And a butterfly’s wing pattern is similar between the two sides.  The short answer…

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California Prohibits Driving with Some Sunglasses

California Prohibits Driving with Some Sunglasses by Brian Chou, OD, FAAO, FSLS August 1, 2020 Yes, California really prohibits you from driving with certain sunglasses!  Have you noticed all the fashionable sunglasses with thick temples?  Frame designers often like thick temples because it allows them to incorporate design elements like their logo.  But what most do…

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Sunlight Make You Sneeze?

Why Does Sunlight Make Me Sneeze?

Why Does Sunlight Make Me Sneeze? by Brian Chou, OD, FAAO, FSLS July 15, 2020   Have you ever noticed yourself or others sneeze when walking out to the bright sunlight?  Up to a third of the population exhibits the “photic sneeze reflex” where the sudden exposure to bright light stimulates sneezing.  First described by Aristotle,…

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Which Glasses Are Best for Keratoconus?

Which Glasses Are Best for Keratoconus? by Brian Chou, OD, FAAO, FSLS July 1, 2020   Several keratoconus patients have asked me if special eyeglasses might help them.  This follows University of Liverpool announcing their engineers are developing spectacle lenses for keratoconus.  While new treatment for keratoconus is welcome, the laws of physics will likely make…

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Private Equity Optometry San Diego

Is Independent Optometry in San Diego Dying?

Is Independent Optometry in San Diego Dying? by Brian Chou, OD, FAAO, FSLS June 15, 2020   The San Diego landscape for optometry has dramatically changed since 2017, but largely invisibly to the public.  Roughly 25% of the private optometric practices in San Diego are now owned by a large corporation, each with hundreds of millions…

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Is Blue Light Bad for My Eyes?

Is Blue Light Bad for My Eyes? by Brian Chou, OD, FAAO, FSLS June 1, 2020 Confused whether blue light is bad for your eyes?  You are not alone.  There is an ample misinformation about blue light, perpetrated by companies selling products that supposedly protect your eyes from it. Blue light has existed since the dawn…

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How to See Ocean Bioluminescence in San Diego

How to See Ocean Bioluminescence in San Diego by Brian Chou, OD, FAAO, FSLS May 15, 2020 Every few years in San Diego, crashing ocean waves dazzle blue at nighttime.  This has occurred in October 2011, September 2013, May of 2018, and May of 2020.  The single-celled algae called dinoflagellates, bloom in the ocean water causing…

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X-Chrom Contact Lens for Color “Blindness”

X-Chrom Contact Lens for Color Vision Problems by Brian Chou, OD, FAAO, FSLS May 1, 2020 (Updated May 5, 2023) Good color discrimination is required for pilots, electricians, law enforcement, and other occupations.  Imagine if a police officer shot at the brown car instead of the green one.  This would pose a safety and liability hazard. …

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AvaGen Genetic Keratoconus Test

Should I Have Genetic Testing for Keratoconus?

Should I Have Genetic Testing for Keratoconus? by Brian Chou, OD, FAAO, FSLS April 14, 2020 (Updated April 17, 2022) Keratoconus has a well-established genetic link.  A 2012 review article found that between 6 to 23.5% with keratoconus have someone else in the family with it.  Furthermore, relatives of keratoconus patients are 15-67 times at…

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Coronavirus

Should I Wear Contact Lenses During Coronavirus?

Is it Safe to Wear Contact Lenses During the Coronavirus Pandemic? Settling the confusion on coronavirus concerns for contact lens wearers April 6, 2020 Is it safe to wear contact lenses during the COVID-19 pandemic?  For patients with keratoconus and those using medically necessary contact lenses, wearing eyeglasses is usually not a viable option to…

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