I know there's already a forum for sore and tender scalps but naturally, I can't find it! I needed to register before posting...so it's GONE. For about a year my scalp has been so sore and so tender that it hurts 24 hrs a day. At first I thought perhaps I was allergic to my shampoo so I changed brands. No improvement. Next I wondered if my shower was too hot.
Although small in size, the eye is a very complex organ. The eye is approximately 1 inch (2.54 cm) wide, 1 inch deep and 0.9 inches (2.3 cm) tall. The tough, outermost layer of the eye is called the sclera. It maintains the shape of the eye.
Human eyes have a visual threshold that can only detect light to a depth of around 500-600 metres. The colossal squid not only has large eyes and lenses â its are also large, around 80-90 mm across. A large pupil allows the eye to collect every last photon of light in the incredibly deep and dark waters where it lives.