the development of compound lens devices did not occur until 1600. That year, Dutch lensmaker Hans Jannsen and his son, Zacharias, mounted sliding lenses
isolated villages
It came from Jesus Christ and was instituted by the apostles
Wearing contact daily lenses overnight can be a bit uncomfortable. At night, it is best to remove the lenses. Contact lenses worn for longer than daily wear require soaking and disinfection. The eyes can become red, irritated. You can even develop scratches on the cornea from overwearing the lenses. Protein deposit develop during wear. These deposits are only removed by soaking.
No, plastic and clay are not typically used to make lenses for cameras or eyeglasses. Lenses are usually made from materials such as glass or specialized plastics that have optical properties suitable for focusing light. Clay is not a suitable material for making lenses due to its composition and properties.
For a brief, simnplified explanation, See: http://www.vermontjudiciary.org/MasterDocument/jury-originsandhistory.pdf
Between 50 and 80% of Marfan patients have dislocated lenses.
High index lenses are thinner and lighter than mid index lenses, making them a better choice for stronger prescriptions. They also reduce the "bug-eye" distortion that can occur with thick lenses. However, high index lenses can be more expensive than mid index lenses.
The earliest historically documented people of Mesopotamia were the Sumerians. They lived about 5,000 years ago and were the first people to develop cities with schools and writing systems.
Antonie van Leeuwenhoek is known for making the world's first practical microscope by devising special lenses. He used this microscope to make groundbreaking discoveries in the field of microbiology.
As far as I know the range of strength for contact lenses is almost identical to that of glasses. There are also special contact lenses for many disorders such as astigmatisms, aspheric eyes and multi-focal lenses. You can simply ask a doctor before making an appointment this type of question, so that you don't waste your time or money on an appointment.
Cameras typically use convex lenses to focus light onto the image sensor or film. Concave lenses are not commonly used in cameras because they cause light to diverge rather than converge, making them unsuitable for image formation.
Carl Zeiss contributed to the first microscope by making the lenses better.