WHAT IS TONOMETER?
THIS PARAGRAPH HAS BEEN WRITTEN IN REFERENCE TO MDU ROHTAK EXAM PATTERN
In order to ensure a person’s optic nerves are healthy, optometrists check the pressure placed on them by the fluid in the eyes. This pressure is called intraocular pressure and should measure between 10 mmHg and 21 mmHg. Measurements that are higher than normal can be a sign of early glaucoma or retinal detachment.