Astigmatism. This week’s topic is astigmatism and how to correct it.  Astigmatism is a condition where the eye focuses the light in multiple locations on the retina.  

 

Welcome back to A Vision of Health.  Several past topics have mentioned refractive errors.  This week I will discuss this in detail. 

The eye works a lot like a camera.  Just as a camera focuses light on the film, the eye focuses light on the retina. When light is focused to a point, it is refracted.  When this point of light is perfectly on the retina the eye is emmetropic.  If the light is focused in front of or behind the retina, then the eye has refractive error.  

Lazy Eye

The subject of lazy eye is an interesting one because it is used to describe so many different conditions.  These conditions include strabismus which is a turning in, out, up or down of the eyes; amblyopia which is lack of visual development; refractive error which is a focusing problem; and ptosis which is a drooping of the eyelid.  The term lazy eye usually implies a condition that you’re born with and doesn’t go away.  After all, few cases of laziness are truly acquired.

Vision Floaters.

This week I will cover the topic of floaters.  These are the spots that move around in your vision.  They come in a wide variety of sizes and shapes.  There can be a single floater or many.  Each year I examine hundreds of patients who develop floaters.  Although floaters can be a sign of a problem in the eye, most of the time they are harmless.

flashes of lightThis week’s topic covers flashes in the vision.  Patients will often notice momentary flashes of light.  Many times these flashes are in an arc pattern at the edge of their vision.  I will describe some of the common conditions that cause flashes.  Next week, I will cover to topic of floaters.

eyesurgeryexams. This year is my 13th year practicing ophthalmology in Helena.  I am still surprised when I meet people who say they didn’t realize that they could receive advanced eye care in Helena.  So, I will devote this week’s Vision of Health to describing the eye care that is available here in Helena. 

eyecolor. Eye Color

A patient once joking asked if I could change her eyes to green.  Just in time for St. Patrick’s Day.  Well, I couldn’t change her eyes to green, but it is interesting to discuss eye color and how that color can change.

This week I’ll  discuss how the eye can be an indicator of disease elsewhere in the body  and focus on the eyelids and the position of the eye.

I have been asked to describe “no stitch, small incision” cataract surgery. First, it is important to understand that almost all cataract surgery is performed using the no stitch, small incision technique.  A brief history of cataract surgery is helpful to understand the advantages of this technique.

This week’s topic is eyelashes.  Why do we have them? Do we ever lose them?  Can you have too many?  Can they affect vision?  Can they harm the eyes?