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Recently, I replaced my 1.61 index lens with 1.67 and the prescription is the same. But after that, I felt some strain in my eyes. Is this a lens quality issue? - Quora
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Recently, I replaced my 1.61 index lens with 1.67 and the prescription is the same. But after that, I felt some strain in my eyes. Is this a lens quality issue? - Quora
Lens Index - Do I Need High Index Lenses?
Blue Light Blocking Eyeglasses Lenses 1.56/1.59 PC/1.61/1.67 Hmc UV420 Protection Blue Cut Anti Blue Ray Optical Lens - IRGLUX.COM
Recently, I replaced my 1.61 index lens with 1.67 and the prescription is the same. But after that, I felt some strain in my eyes. Is this a lens quality issue? - Quora
1.61 Photochromic Single Vision 1.67 Index 1.56 Prescription Optical Spectacles Lenses With Fast Color Change Performance,2pcs - Eyeglasses Lenses - AliExpress
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MERRYS Anti Blue Light Blocking 1.56 1.61 1.67 Prescription CR-39 Resi – MERRY'S Official Store
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