Idiom of the Day
raise one's voice to (someone)
to speak loudly or shout at someone in anger
The teacher asked the child not to raise his voice.
Precaution while using Contact Lenses
Safest medical devices
Contact lenses are one of the safest medical devices when worn responsibly, says Thomas L. Steinemann, MD, a professor of ophthalmology at Case Western Reserve University in Cleveland and a spokesperson for the American Academy of Ophthalmology. While contact lens use is safe, not caring for contact lenses properly or failing to follow contact lens safety rules can lead to serious problems. Contact lenses can be a potential point for infection, says Dr. Steinemann. No matter how careful you are, germs are on our hands, eyelids, everywhere. When germs such as bacteria and fungi are on the contact lens, they can invade the eye.