PSA: Understanding Prescriptions for eyeglasses

[kenny]

@Begonia 's thread about her prism glasses got me curious about all-things-glasses.

This link seems like a good primer on eye conditions that can be improved or corrected with lenses.

I've never paid much attention to all this, though I have been curious.

How to Read an Eye Prescription

OD vs. OS SPH (Sphere) CYL (Cylinder) Axis ADD (Addition) PD (Pupillary Distance) Prism Why Prescription Expiry Matters Hyperopia (Farsightedness) vs. Myopia (Nearsightedness) Astigmatism Bifocal and Progressive Lenses How to Interpret a Full Prescription High Prescription Numbers Don’t Equal...

www.lakoh.com

 

[Begonia]

@Begonia 's thread about her prism glasses got me curious about all-things-glasses.

This link seems like a good primer on eye conditions that can be improved or corrected with lenses.

I've never paid much attention to all this, though I have been curious.

How to Read an Eye Prescription

OD vs. OS SPH (Sphere) CYL (Cylinder) Axis ADD (Addition) PD (Pupillary Distance) Prism Why Prescription Expiry Matters Hyperopia (Farsightedness) vs. Myopia (Nearsightedness) Astigmatism Bifocal and Progressive Lenses How to Interpret a Full Prescription High Prescription Numbers Don’t Equal...

www.lakoh.com

That was a good read @kenny. Thank you.

 

[kenny]