Vision Correction

Breakthroughs in lens design and technology have transformed the eyeglass industry, improving the science of vision correction and introducing a world of new options for thinner, lighter, and more aesthetically pleasing lenses. Single-vision lenses, which have the same prescription throughout, are most commonly prescribed for people with nearsightedness, farsightedness, and astigmatism conditions. Multi-focal lenses, which are lenses with two or more prescriptions, correct more than one vision problem, improving the wearer’s vision at varying distances. Examples of these types of lenses include bifocals, trifocals, and progressives.

Nearsightedness is when you have difficulty seeing far away. In this case, the eyes are too strong and can only focus on objects that are close. The eyeglass prescription for this vision contains a minus sign (for example, -2.50) because the eye’s power needs to be lessened so you can see far away. It is important especially for nearsighted young people to have a comprehensive eye exam to avoid developing lazy eye which can occur when a person is nearsighted and does not wear corrective lenses. Farsightedness is when you have difficulty seeing up close. If farsighted, the eyes have to work overtime in order to focus. This can result in headaches, fatigue and long-term effects. Lastly, astigmatism is a very common, correctable vision condition resulting in blurred vision at any distance.

How do you know if you need glasses?

It all starts with a comprehensive eye exam, but some signs you need glasses may include:

  • Bumping into or tripping over things.
  • Squinting, frequent headaches, rubbing the eyes, nausea, fatigue.
  • Sitting too close to a digital screen.
  • Inability to see far away or up close.

Problems can also arise if you wear a prescription that is too strong, as it strains the eyes and cause headaches and fatigue. For example, if your reading glasses are too strong you will find that you are holding things too close to your face.