The large geographic area now known as Spring was originally inhabited by the Orcoquiza Native Americans. In 1836, the Texas General Council of the Provisional Government placed what is now the town of Spring in the Harrisburg municipality. In 1838, William Pierpont placed a trading post on Spring Creek. In 1840, the town of Spring had 153 residents.
Anti-fatigue lenses are fantastic because they break the accommodative spasm and allow the patient to go back and forth between distance and near tasks without having to take the glasses off.â According to Dr. Salaba, he has prescribed AF lenses to about 400 patients and has only had 10 to 15 patients reject them.
However, the lightness and stiffness of aluminum in some eye glasses designs offers great advantages. For example, for metal frames that are thicker in design, and larger in design, aluminum is the toughest material and can accommodate the thickest and heaviest lenses. Aluminum frames last a long time and can take a lot of abuse compared to plastic frames, or thin metal frames.