Tuesday, September 02, 2008

half & half

Half of our family wears glasses now...


Abram and his FIFTH pair of glasses since last October. (don't ask)


Jayne and her new specs.

Notice the butterflies on the side...she wanted to make sure you saw them.

They suffer from astigmatism which they inherited from their dad. What is that, you ask?

In ophthalmology, the vertical and horizontal planes are identified as tangential and sagittal meridians, respectively. Ophthalmic astigmatism is a refraction error of the eye in which there is a difference in degree of refraction in different meridians. It is typically characterized by an aspherical, non-figure of revolution cornea in which the corneal profile slope and refractive power in one meridian is greater than that of the perpendicular axis.

Astigmatism causes difficulties in seeing fine detail. In some cases vertical lines and objects such as walls may appear to the patient to be leaning over like the Tower of Pisa. Astigmatism can be often corrected by glasses with a lens that has different radii of curvature in different planes (a cylindrical lens), contact lenses, or refractive surgery.

Astigmatism is quite common. Studies have shown that about one in three people suffers from it.[1][2][3] The prevalence of astigmatism increases with age.[4] Although a person may not notice mild astigmatism, higher amounts of astigmatism may cause blurry vision, squinting, asthenopia, fatigue, or headaches

Thank you, Wikepedia, for providing us with the answer in such detail.

If they didn't have glasses, this is what their vision would be like:



Yep, we are grateful for those cute little spectacles! And the faces they are on!

3 comments:

Beckaroo said...

So cute!
I can't wait to see them in person!

Mary said...

Yeah, Micah always makes fun of me cause I don't see very well, but I don't think I need glasses. He just wants to gloat cause of his 20/20 vision! Thanks for sharing!

RedefinedPossibilities said...

Yea glasses! Now they have no excuses not to see it all!!!