The previous prescriptions and the new one



Submitted by saidbuhari on Tue, 03/10/2020 - 11:36
40 yr
Did you perform any surgery for the eyes?

A procedure called Corneal Collagen Cross Linking was performed on the left eye.

Do you suffer from pre-existing illnesses in the eye?


Do you suffer from any diseases in the body?
Do you use any eye drops?
Do you wear Contact lenses or Eyeglasses?

The glasses prescriptions then was:

Right Eye: -1.25DS/-3.00DC*170  and

Left Eye: -2.50DS/-3.50DC*150




Hello Sir,

I was diagnosed to have a condition called KERATOCONUS in 2011, which is more severe in the left eye and very mild in the right eye.

Due to the fact that my prescriptions has a wide range of difference between the two eyes as:

Old Prescription: Right Eye: -1.25DS/-3.00DC*170 &  Left Eye: -2.50DS/-3.50DC*150   and

New Prescription: Right Eye: -3.5D  & Left Eye: -4.00/-1.00*90.

Please, kindly advice if it is safe for me to go ahead and use the new prescribed glasses? and also to know if there is any improvement in my eyes based on comparison between the old and the new prescriptions?

Thank You


Thanks for your Question

There are significant differences between the old and the new prescription. You have to re-check that with your optometrist again.

You shouldn't wear this new eyeglass unless you double check that with your optometrist. Wearing eyeglass with wrong prescription can cause headache and eye strain.