How long have prescription eyeglasses been around?Written by Timothy Gorman
From documents that were retrieved in Rome in 13th Century, we know that prescription eyeglasses were available at that time. They were referred to as "spectacles" rather than glasses. Although we do not know for certain when prescription eyeglasses were invented, we do have proof that they did exist during this time period. A portrait done by an artist named Tomas da Modeno portrays a gentleman wearing eyeglasses. Obviously what we do not know is if they are prescription eyeglasses. There are, however, other documents such as a manuscript written by a man that implies that if he wasn't wearing spectacles, he would not be able to read or write.
In 15th century printing press was invented which meant more reading material was readily available. Thus, need for prescription glasses increased. The first reading glasses were held by one hand only during times that they were needed for reading. It was later in 17th century when people actually wore glasses regularly, after an optometrist created them with both earpieces. In those times, a person who was having difficulty with their eyesight would just go in and try on several pairs of prescription eyeglasses until they found a fit for their needs. That changed when Dr. FC Donders wrote first book on examining eyes to get prescription eyeglasses.
Avela - Male EnhacementWritten by Ratliff J
Introducing Avela, an all-natural breakthrough proprietary blend of ingredients specially formulated to deliver enhanced performance and pleasure without need for a prescription. Many men report difficulty in achieving erections adequate enough to perform sexual activities. For some men, this may start early on in life. For many reasons, mentally or physiologically, men can experience a decrease in blood flow that can lead to difficulties in achieving and maintaining erections. Avela can help maximize your erection potential, allowing you to easily achieve stronger, firmer, and fuller erections.