Blog

No. "Cataract" is not a disease, nor is it some sort of film or haze covering the natural lens of the human eye. It is the eye's lens material itself hardening, becoming discolored, and eventually clouding up as an inevitable development of aging. This hardening of...

Of course we do! Not only can we confirm objectively that the eyes are not in proper alignment, we can measure the degree of it in all directions of gaze. Sometimes, a complaint about double vision (called "diplopia") can be in just...

Yes, you are. Your original nearsighted prescription was quite low. While that is not necessarily a contraindication to needing or wanting to have LASIK, you have only gained a little distance sharpness from it. If you are under 40 years of age, that little bit of...

The default focal point of the normal human eye is way off at the horizon. To pull the focus up close requires a physical change in the shape and thickness of the natural lens of the eye called "accommodation." This change in focusing power is measured in the same units...

The pinhole test uses a 1.0 mm hole in an opaque disk to determine how much of a visual problem is due to a "refractive error" rather than ocular pathology (like cataract or macular degeneration). It works by limiting the oncoming rays of light to...

People with good vision (it doesn't even have to be perfect) do not appreciate what it is like to have to wear glasses or contact lenses. Understandably, they think of glasses as akin to an article of clothing that can be readily put on or taken off as needed. In reality,...

Posterior Capsular Opacification (PCO) is the slow haze that develops on the normally clear, cellophane-like envelope (a part of your body) called the "capsule." Before the cloudy lens material was removed and then replaced at the same time with an intraocular lens (IOL),...

The largest letter on an eyechart (the one at the very top) is usually a big "E." This is typically the 20/400 line, meaning that if you cannot read down the chart to smaller size letters, your vision would be recorded as 20/400. But what if you can't even see that size...