CLLOIO Ultralight Business Men Reading Anti Blue Light Myopia Prescription Glasses Hyperopia Optical Eyeglasses

How To Order Prescription Glasses The refractive index of all glasses sold by the current link is 1.56If you need lenses with other refractive indices, please contact customer service Method 1 (For Myopia/Hyperopia) Step 1: Select "Hyperopia/Myopia/Progressive Custom" and Frame Options in the current link and place an order Step 2: Provide your prescription Method 2 (For Progressive or Other Lenses) Step 1: Choose 0 degree frame and add to cart Step 2: Choose Lens and add to cartContact us if you don't know how to choose the lens Step 3: Provide your prescription Step 4: Place an order, make payment and wait for delivery How to Measure Your PD If you want to order eyeglasses online, you can either ask your optometrist for your PD or measure it yourself If obtaining your measurement from your optometrist isn't possible, no worries-you can measure it from home using a ruler! Prescription Format prescription on the order page as shown below: Note: Remember to write the symbol "+" or "-" How To Read Your Prescription Sphere (SPH) This indicates the strength of the lens power, measured in Diopters (D)Most typically this is written in ¼ diopter increments (I.E0.25, 0.50, 0.75, 1.00).This value is the prescribed amount of correction for nearsightedness (myopia) or farsightedness (hyperopia)If the number appearing under this heading has a minus sign (–), you are nearsighted; if the number has a plus sign (+) or no sign, you are farsightedIf there is no spherical correction, it could be written as 0.00 or Plano (PL) Cylinder (CYL) This indicates the strength of the lens power to correct astigmatismIf nothing appears in this column, the value is 0 or "SPH" is written, it indicates that there is no astigmatism Optometrists usually write the astigmatic correction with a minus sign (-) Ophthalmologists usually write the value with a plus sign (+) These represent two differences different ways of determining the correction Astigmatism basically means that the light entering the eye comes to two focal pointsTo correct this, the lens uses the SPH power to move one of the focal points to the retina and the CYL power to move the other focal point to the retina Axis The axis number will be a value between 1 and 180The diagram below demonstrates where those meridians are locatedAs you can see above, the number 90 corresponds to the vertical meridian of the eye, and the number 180 corresponds to the horizontal meridianTo avoid mistakes, the axis is typically written as 3 digitsFor example, an axis value of 45 is usually written as 045 Near Add or NV-ADD This is the additional magnifying power applied to the lower part of bifocal, trifocal, or progressive lenses to correct presbyopia The number appearing in this section of the prescription is always a plus power, even if it is not preceded by a plus sign (+) The added power is usually the same for both eyes, however i In certain rare cases, it could be different between the two eyes A brief description of presbyopia is the acquired inability to focus on close objectsPresbyopia is a natural aging-related change in the eyesThere is no way to prevent it, and it happens gradually over timePresbyopia typically begins to affect people around the age of 40 What Lens Index is Best for You The lens thickness you should get depends on your prescription and your lifestyle Thicker lenses are more affordable, but can only accommodate lower vision correction needs Thinner lenses are lightweight (and more stylish!)and can accommodate ALL kinds of vision needs, including higher prescriptions! CLLOIO Aspheric Lenses CLLOIO aspheric lenses can reduce aberrations and distortions, and visualize objects more realistically CLLOIO aspheric lenses are lighter and can effectively alleviate visual fatigue caused by compression