The Add, short for Reading Addition, is the additional correction required for reading.<br /> <br /> Ordering reading glasses at firmoo is easy! Once you have selected a frame, click &ldquo;Select Lenses&rdquo; and follow the below steps:<br /> <br /> 1. The first step is entering your Add.&nbsp; <p>Sometimes opticians use the word &#39;Add&#39; or &#39;Near&#39; instead of &#39;addition&#39;. They may only write it once, but it normally applies to both eyes and is almost always the same value for both eyes (e.g. &#39;Add&#39; +2.50 - should be entered for both eyes).&nbsp;<br /> <br /> <strong>FYR:</strong><br /> Age&nbsp; &nbsp; &nbsp; &nbsp; Add Power</p> 35-39&nbsp; &nbsp; &nbsp;Plano<br /> 40-44&nbsp; &nbsp; &nbsp;+1.00<br /> 45-49&nbsp; &nbsp; &nbsp;+1.50<br /> 50-54&nbsp; &nbsp; &nbsp;+2.00<br /> 55-59&nbsp; &nbsp; &nbsp;+2.50<br /> 60-64&nbsp; &nbsp; &nbsp;+3.00&nbsp;<br /> <br /> 2. Next, you&#39;ll need to input a Near Single or Dual PD (pupillary distance) under the Pupillary Distance.<br /> <br /> For a Single PD, if you were only given one PD measurement, it is most likely for distance so you will need to subtract 3 to calculate your near single PD.<br /> <br /> If you were given a dual PD, two numbers - one for the right and left eye, you&#39;ll need to subtract 1.5mm from each number to calculate the near dual PD. Ex. If given PD= 63mm then Near PD= 60mm.<br /> <br /> 3. The last step is to choose &quot;Single Vision&quot; ,&quot;Near(Reader)&quot; &nbsp;and the lenses you want to add.
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