A member asked:

If my two contact lenses have the power of -2.25 and -3.50, what would that be in terms of 20/20?

A doctor has provided 1 answer

Dr. Benjamin Chun answered

Don't work that way: Sorry, it doesnt' work that way. Presumably those powers were prescribed to attain best vision. If your best corrected vision is 20/20, then it would be 20/20. If your best corrected vision is 20/200, then that's what it would be.

Answered 1/23/2013

5.3k views

Thank

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.

Get Virtual Care

For Businesses

About Us

HealthTap Online Primary Care Doctors Accepting New Patients

A member asked:

If my two contact lenses have the power of -2.25 and -3.50, what would that be in terms of 20/20?

A doctor has provided 1 answer

Dr. Benjamin Chun answered

Related Questions

A member asked:

What do you advise if I'm using eye glass from two year. but now I want to try eye contact lens.but I don't know is contact lens is good?

A member asked:

I have had my IUD for almost three years. I get my period every month (it is irregular) but i missed my last two cycles. Should i contact my doctor?

A member asked:

Is it safe to wear one contact lens in my right eye for only two hours. I have a form of pink eye in my left eye which still has some blurred vision.

A member asked:

I can't use contact lenses my contact is bothering my right eye about 1 year.I've visited 4 or 5 doctors and they gave me some eyedrops and solution like alergan, genteal, fluocort and chromolyn sodiom and two of them told me to wash my eyelashes with bab

A member asked:

I was on 40 mg for the last three weeks and it's tapering like 30mg 2 weeks, 20 mg for 2 weeks and then 10mg for two weeks.wen will moon face go off?

Sponsored Content

People also searched for:

How long would a bottle of contact lens solution last for two?

I scraped my knee a year ago and my knee hurt any time it came into contact with anything for two months after that. For a good 6 months I didn't feel any pain, but three months ago my knee started hurting whenever I put even a little pressure on it.

Hii sir, i used contact lenses for 3-4 days one year ago? After that i had got two small funsi(white in color no puss) over eyelid inside.Thanx..

What if i wear two different colour opaque contact lenses, will any harm come to my eyes?

Could you tell me if i wear two different colour opaque contact lenses, will any harm come to my eyes?

Telemedicine

Primary Care

Manage Your Conditions

Women's Health

Children's Health

Men's Health

Senior Health

Wellness, Prevention & Lifestyle

Sexual Health

Mental & Behavioral Health

Travel Medicine

Urgent Care

Didn't find what you're looking for?

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

For Businesses

Company

Health Content

Join Us

Download HealthTap

Questions?