The number is unknown. But there are hundreds of lenses in there eye.
An eye with many lenses is called a compound eye. This type of eye is typically found in arthropods, such as insects and crustaceans. Compound eyes are made up of numerous small units called ommatidia, each of which contains its own lens, allowing for a wide field of view and the ability to detect motion effectively. They provide a different visual experience compared to single-lens eyes, like those found in vertebrates.
An insects eye is made up with many many small lenses, all joined side by side. Each lens sees only a small part of the scene but taken together they give a complete view of what is around the fly. As the eyes is made up of lots of small bits it is a 'compound' rater than a single structure - hence compound eye.
You will need to visit an eye doctor and get a prescription for contact lenses.
Dragonfly has many lenses in it's eye. Probably nature thought that many lenses are required to see many objects. So it is probably natures experiment in evolution of eye. You have single lens in each eye of more evolved animals.
about seven thousand
A housefly has compound eyes, which are made up of thousands of individual lenses called ommatidia. Each ommatidium acts as a separate visual unit, contributing to the fly's overall compound eye structure.
Colored contact lenses will do the trick.
Yes, lenses in both.
if you have an eye infection you shouldn't be wearing contact lenses.
Convex Lenses (Plus Lenses): Used to correct farsightedness (hyperopia) by converging light. Concave Lenses (Minus Lenses): Used to correct nearsightedness (myopia) by diverging light.
Lenses is known as a virtual lenses. This is something that you put on the eye to help see better.