One of the most common eye problems is amblyopia, or "lazy eye", a condition in which one eye doesn't send signals to the brain as consistently or effectively as the other. Normally, light enters the eyes through the corneas and is bent, focused, and "sent" to the...
Yes, it is. Contact lenses are approved as safe by the US Food and Drug Administration (FDA) but only when used according to your doctor’s instructions. Ignoring proper contact lens care precautions puts you at risk for a wide range of eye complications that can cause...
Most people have heard that the genes for brown eyes are dominant. So how is possible for the two brown-eyed parents to have a blue-eyed child? The reason is that genes come in pairs along the twisted double DNA strands. If both of these genes code...
These are actually two very different conditions. Presbyopia is the gradual loss of near vision due to the slow, progressive aging of the natural lens of the eye. The only definitive "cure" for this is a presbyopia-correcting lens implant (IOL). It is possible to "trick" presbyopia...
Guest blogger Rutland Walker talks about his Presby-Fix™ procedure 2 months after the day of surgery at Woodhams Eye Clinic. I just had my two-month check up after having the procedure done on July 15th, 2015. Presby-Fix™ is a surgical procedure to address presbyopia, (essentially the natural aging of...
There really isn't a "hard line" beyond which laser vision correction should not be done -this depends on many factors that can only be evaluated in the course of a thorough ocular examination and biometric testing. This is true with any kind of laser procedure of the...
Great question! You have good insight and are quite right: myopic (nearsighted) people can see up close even after becoming presbyopic! This is because the default focal point for a nearsighted eye is abnormally close -the same reason their distance vision is blurred. This can come in quite...
Methanol is definitely something to avoid ingesting -in any quantity. Methanol (wood alcohol) is a simple alcohol very closely related to ethanol, the intoxicating chemical in whiskey, beer, and wine. But methanol is extremely poisonous and toxic specifically to the nervous system. It is so toxic...
Yes, usually, that is the case. Evolutionarily, our bodies are not really "built" to survive and function optimally much past age 40. But since modern medicine and technology often provide us with a lifespan almost twice that, we have to deal with our various body parts...
The "index of refraction" is a term in optics referring to how much a lens material bends (refracts) light going through it. For example, air does not bend light as much as water does -something readily apparent to us when we see a pole sticking...
