focometer meaning in Hindi

Examples

1. The focometer was developed by Drs.
2. A clinical trial compared the repeatability, validity, and ease of use of the focometer with an autorefractor.
3. It found that the focometer results were within 0.75 dioptres of the autorefractor value 84 % of the time.
4. A study has found, however, that the focometer is less effective for identifying astigmatism than an autorefractor, and that its axis accuracy is limited to 15?
5. The advantages of a focometer over other methods for use in developing countries are that it is lightweight, compact, relatively inexpensive, fairly quick, and easy to use with minimal training.