Optical Coherence Tomography (OCT) , which measures the reflection of laser light much like an ultrasound measures the reflection of sound, can directly measure the thickness of the nerve fiber layer and create a three dimensional representation of the optic nerve.
Price of a Stamp. The current price of a first class stamp is 49 cents. A domestic first class letter (1 oz.) is 49 cents. The price of each additional ounce is 21 cents.It will cost you 34 cents to send a domestic postcard.he current price of a first class stamp is 49 cents. A domestic first class letter (1 oz.) is 49 cents.
On Jan. 26 the cost of a first-class postage stamp will rise to 49 cents from 46 cents, according to The Washington Post. A book of first-class, one-ounce stamps will cost $9.80.Forever Stamps purchased before the increase will still be valid for all one-ounce letters. The U.S. Postal Serviceâs regulator approved the increase of about 6 percent, but rejected a request for a permanent increase.According to the USPS, the increases include: book of first-class, one-ounce stamps will cost $9.80. Forever Stamps purchased before the increase will still be valid for all one-ounce letters. The U.S. Postal Serviceâs regulator approved the increase of about 6 percent, but rejected a request for a permanent increase. According to the USPS, the increases include: