![State the defects of vision in human eyes and its remedies. Explain the defect of myopia and remedies to control it. State the defects of vision in human eyes and its remedies. Explain the defect of myopia and remedies to control it.](https://haygot.s3.amazonaws.com/questions/665080_626108_ans_6541ac1708744300b4e9d1d8298f14fd.png)
State the defects of vision in human eyes and its remedies. Explain the defect of myopia and remedies to control it.
![The focal length of a normal eye-lens is about:$(a){\\text{ 1mm}} \\\\(b){\\text{ 2cm}} \\\\(c){\\text{ 25cm}} \\\\(d){\\text{ 1m}} \\\\ $ The focal length of a normal eye-lens is about:$(a){\\text{ 1mm}} \\\\(b){\\text{ 2cm}} \\\\(c){\\text{ 25cm}} \\\\(d){\\text{ 1m}} \\\\ $](https://www.vedantu.com/question-sets/23766a8b-704b-4a02-9898-45078c04e63b6462374204689754885.png)
The focal length of a normal eye-lens is about:$(a){\\text{ 1mm}} \\\\(b){\\text{ 2cm}} \\\\(c){\\text{ 25cm}} \\\\(d){\\text{ 1m}} \\\\ $
![How Focal Length Affects Viewing Angle | Digital Camera Know-Hows | Digital Camera | Digital AV | Support | Panasonic Global How Focal Length Affects Viewing Angle | Digital Camera Know-Hows | Digital Camera | Digital AV | Support | Panasonic Global](https://av.jpn.support.panasonic.com/support/global/cs/dsc/knowhow/common/img/l12/l12_01.jpg)