Question about my new glasses

[behati]

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Hi! I'm a first year optometry student and I just got new glasses. My old glasses were OD -4.00 OS -3.75 but my new ones are a bit weaker at OD -3.75 OS -3.50.

I noticed with my new glasses that when looking through the lens with the right eye, light seems to "flare" vertically. This doesn't happen with the left eye in my new glasses or either eye in my old glasses. I was wondering if this were most likely a problem with the prescription, the way the glasses were made, or not having an anti-reflective coating.

(My old glasses did have an anti-reflective coating but they are hella old and I was pretty hard on them so I don't know how much of the coat is left.)

Thanks in advance!

 

[KHE]

Hi! I'm a first year optometry student and I just got new glasses. My old glasses were OD -4.00 OS -3.75 but my new ones are a bit weaker at OD -3.75 OS -3.50.

I noticed with my new glasses that when looking through the lens with the right eye, light seems to "flare" vertically. This doesn't happen with the left eye in my new glasses or either eye in my old glasses. I was wondering if this were most likely a problem with the prescription, the way the glasses were made, or not having an anti-reflective coating.

(My old glasses did have an anti-reflective coating but they are hella old and I was pretty hard on them so I don't know how much of the coat is left.)

Thanks in advance!

There can be many things that can cause that but to me it seems unlikely to be uncorrected astigmatism because the astigmatism would have been uncorrected with the old Rx as well.

You should see your doctor and ask them to recheck you but a common source of that type of problem with new glasses is that there is a chuck glued onto the lens during fabrication that spins inside the machine use to cut the lens. Sometimes when that chuck is twisted off, it creates a distortion in the scratch coating or on the surface of the lens.

Take the glasses back and get them rechecked.

 

[zacklinhora]

Hi...Another thing to consider: glasses material. Did you get thinner lenses? They're made of a material that has a higher refraction angle or something like that, so if you're not looking exactly in the right place, the level of distortion can be bigger than you're used to.