“Has my vision increased or decreased?”
If my vision has changed from -1.75 to -1.25, my vision has increased or decreased?
Female | 21 years old
10 Answers
Your prescription has gotten weaker your distance vision May be slightly better.
I presume your prescription changed from -1.25 to -1.75. That would suggest your myopia get a little worse; however, if it did change from -1.75 to -1.25, then it did improve (which is not likely but possible).
-1.25 is a lower prescription than -1.75, so you would think that your visual ability has improved. However, it's more likely that the -1.75 was an over-correction and you were actually -1.25 all along.
Your vision improved
Decreased
Power has decreased
This would be considered an improvement. It might fall within the range of statistical error representing no change, but an improvement on numbers alone.
Your eyeglass (and/or contact lens) prescription has changed. That does not tell us anything about your vision.
Best regards,
David J. Pinhas, M.D.
Best regards,
David J. Pinhas, M.D.
Technically, you are less nearsighted. This wouyld be considered an improvement, but you will still need glasses for many visual tasks requiring good distance vision, such as driving.
What you are referring to is a change in your refraction (prescription) from -1.75 to -1.25. In other words, a slight decrease in your prescription.
This does not tell us if your vision has actually decreased or increased. We would need to know what your visual acuity is while wearing that prescription. That would be expressed as something like 20/20 or 20/40.
Based on your age, I would guess that the most likely reason your prescription has 'decreased' is because the -1.75 you were given originally was too strong. It is common for young people to be inadvertently given prescriptions that are too strong but they can still wear them. However, as we get older we cannot tolerate too strong of a prescription so it has to be decreased.
Since I didn't examine you I am just making educated guesses here but again I would say it is more likely that your vision has not really changed but that your original prescription given to you was too strong.
This does not tell us if your vision has actually decreased or increased. We would need to know what your visual acuity is while wearing that prescription. That would be expressed as something like 20/20 or 20/40.
Based on your age, I would guess that the most likely reason your prescription has 'decreased' is because the -1.75 you were given originally was too strong. It is common for young people to be inadvertently given prescriptions that are too strong but they can still wear them. However, as we get older we cannot tolerate too strong of a prescription so it has to be decreased.
Since I didn't examine you I am just making educated guesses here but again I would say it is more likely that your vision has not really changed but that your original prescription given to you was too strong.
