Can We Believe What We See?

Top and Bottom are same color :)The Top & Bottom are the SAME color !

Put your finger sideways across the middle of this picture.

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Why an Eye Exam? My Child Seems Fine!

“Why does My Child need an eye exam?

                 She/He seems to see just fine!”

eye teaming

 

This is an understandable question to ask because it just makes sense that a child would notice a problem  if glasses were needed. Unfortunately, for many reasons, this is not often the case.  For one, children do not have a strong frame of reference for what actually IS normal.

What can seem like lack of attention for learning reading or slow reading and/or poor comprehension may actually be a result of a ‘hidden’ eye problem.

Even when each eye can see clearly at distance, there still can be a significant problem where the eyes are actually struggling to try and clear up letters while reading.  We all intuitively know that if things are blurry then glasses make sense. But, the most challenging yet overwhelmingly significant issue with learning may be lack of focusing endurance and quick fatigue because of it.

There is often much confusion about what the term ‘lazy eye’ actually means.  Specifically, a lazy eye is one that turns in or out and does not coordinate with the other eye.  That is an important issue to diagnose and treat. Yet, the MOST significant issue for a child is to make sure that each eye has 20/20 vision. If not, then there is no way the eyes are going to ever coordinate together.

Most studies have determined that by about 8 years old, if the eye has not had  clear 20/20 vision, the retina never develops in life to allow for 20/20 vision later on in life.  That means there is a critical period where your child’s eyes are risk for a problem that can typically be easily helped but later on past age 8, nothing much can help improve their vision. When an eye cannot be corrected to 20/20 vision, it is termed ‘amblyopia’.

Also, if your child is struggling to read because of needing reading glasses, then not only will she/he perform poorly but your child will feel failure early on unnecessarily and see school as something they are not good at.

Children’s eye exams are generally very simple and straightforward.  Your child need not even know their letters as there are symbol cards to access acuity.  Also, while your child sits on your lap if they like, a computerized instrument can determine what prescription needed with about 98 percent accuracy without your child needing to respond.

Eye teaming skills, color vision, depth perception are all easy to determine and yet so imperative to insure your child has healthy eyes.  Most often, children to not need to be dilated or have a glaucoma test done which are usually the most uncomfortable procedures for adults.

Click HERE to visit specific information about children’s vision and eye exams at San Anselmo Optometry website.

Please contact Royce at 415-747-8191 to schedule your child’s eye exam or call your current eye doctor and schedule an appointment there.

 

 

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New Forces in Evolution Revealed

Epigenetics
Epigenetics

We all have heard about how Darwin’s finches were isolated in the Galapagos Islands and Darwin’s explanation.  Science has long considered the random mutations which serve as beneficial to be the chief powerhouse behind species adaptations.  Now, in the last several years, new data has been emerging which sheds light on at least another factor involved in evolution. It is called ‘epigenetics’.

watsonkrick
Watson Crick DNA Helix

Epigenetics allows not for changes in the heart of the DNA but in it’s reflection in the outside world according to acquired factors.  To make matters more interesting, recent studies have shown that ‘acquired’ characteristics can be passed on to offspring!  This is indeed almost a heretical thought now that Watson and Crick established the double helix structure of our DNA.

It turns out that recently scientists at Emory University did an epigenetic  study with mice. It was shown that the avoidance of smell was passed on to the offspring without any previous exposure to those smells or socialization on the parents part.

Truly this type of research could lead to an enormous change in how we think about what we experience in life and what gets passed on to offspring without our knowledge.  Perhaps, much of peoples attitudes could change.

Epigenetics could be even a stronger force in evolution than random mutations as we’ve thought for so long. It would explain how species with long gestation periods can impart an adaptation quickly to offspring over just a few generations. Exciting stuff !

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