Archives for: Professor Hallux
What is the heart?
It’s about the size of a fist and is well protected by the rib cage. It’s made of some of the cleverest...
What is conjunctivitis?
The tissue becomes itchy and sore, and can make the white part of your eye look pink or red. If this wasn’t...
What is a lazy eye?
This can lead to problems with the way you see. You might either see two of everything or have trouble...
Why do people wear sunglasses?
Sunglasses have darker lenses than normal glasses which help to reduce glare – that’s the very brightest...
Why do we cry?
Emotional tears are caused by strong feelings of happiness, sadness or pain – are different from the tears...
What happens at the opticians?
When you visit the optician, they’ll start by asking some general questions as to your health, whether you...
What are cataracts?
Surgeons today can replace them with a plastic lens, but did you know that surgeons have been trying to...
Why do people wear glasses?
The eye’s squishy, stretchy lens is surrounded by muscles called ciliary muscles which contract...
Why do we blink?
Blinking is both a voluntary and involuntary action, meaning you can blink whenever you want to, but you also...
What is the vitreous?
The insides of the eyeball are really cool, but you can't see them with just your own eyes! Opticians and...