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Lens Defect Correction
### Myopia
$$P=-\frac1f$$
### Hypermetropia
$$P=\frac1f$$
### Terminologies
- P → Power of correcting lens.
- f → Focal length.
### Usage
- Used in human eye correction problems.
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Lens Defect Correction
### Myopia
$$P=-\frac1f$$
### Hypermetropia
$$P=\frac1f$$
### Terminologies
- P → Power of correcting lens.
- f → Focal length.
### Usage
- Used in human eye correction problems.
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