02/06/2026
๐๐ก๐ฒ ๐๐ซ๐๐งโ๐ญ ๐ฆ๐ฒ ๐ ๐ฅ๐๐ฌ๐ฌ๐๐ฌ ๐๐ง๐ ๐๐จ๐ง๐ญ๐๐๐ญ ๐ฅ๐๐ง๐ฌ ๐ฉ๐ซ๐๐ฌ๐๐ซ๐ข๐ฉ๐ญ๐ข๐จ๐ง๐ฌ ๐ญ๐ก๐ ๐ฌ๐๐ฆ๐?
Great question โ and youโre not alone! We hear this one all the time
Hereโs the simple explanation:
๐๐ฅ๐๐ฌ๐ฌ๐๐ฌ ๐ฌ๐ข๐ญ ๐๐๐๐ ๐๐ซ๐จ๐ฆ ๐ฒ๐จ๐ฎ๐ซ ๐๐ฒ๐๐ฌ
Your glasses lenses are positioned about 10โ14mm in front of your eyes.
๐๐จ๐ง๐ญ๐๐๐ญ๐ฌ ๐ฌ๐ข๐ญ ๐๐๐๐๐๐๐๐ ๐จ๐ง ๐ฒ๐จ๐ฎ๐ซ ๐๐ฒ๐๐ฌ
Contact lenses rest right on the surface of your eye, so the power needs to be adjusted to work correctly at that closer distance.
This is called vertex distance โ and itโs the main reason your prescriptions donโt โmatch.โ The stronger your prescription, the more noticeable this difference can be!
๐๐ญ๐ก๐๐ซ ๐ซ๐๐๐ฌ๐จ๐ง๐ฌ ๐ญ๐ก๐๐ฒ ๐ฆ๐๐ฒ ๐ง๐จ๐ญ ๐ฆ๐๐ญ๐๐ก:
Contacts come in specific parameters (base curve + diameter)
Astigmatism correction may differ (toric lenses)
Some prescriptions require trial fitting for best comfort + vision
Contacts are also adjusted for how they sit + move on your eye
๐๐จ๐ญ๐ญ๐จ๐ฆ ๐ฅ๐ข๐ง๐:
Your glasses Rx is designed for lenses in front of your eyes
Your contact Rx is designed for lenses on your eyes
So even if the numbers look different, your vision correction is still accurate!
๐ Want to make sure your contact lens Rx is perfect? Come see us for a proper contact lens fitting!