I wear contact lens and I’m sure a lot of you wear them or glasses, so I thought it might be nice to learn a few words and phrases you could use if you need to go to the optometrist.
contact lens (contacts) and glasses – used to correct vision
far-sighted – You are unable to see things close up, but you can see things far away.
near-sighted – You are unable to see things far away, but you can see things close up.
bifocals – glasses with 2 distinct optical powers
prescription – This is what the doctor writes so you can get either contact lens or glasses. It is for a specific power of lenses. Contact lens prescriptions are only valid for 1 year.
reading glasses – Glasses that are used for reading. You do not need a prescription for these glasses.
20/20 vision – This is the same as 6/6 vision for my metric readers. 20/20 is in feet.
Here’s a dialog you can practice which is a typical conversation one would have with an eye doctor.
Dr. – Hi, how can I help you today?
You – I’m having difficulty seeing lately.
Dr. – Do you wear glasses or contacts?
You – Yes, I do. I have contacts on right now.
Dr. – Oh, perfect. Let’s do your eye test with your lens on and see how you do. Can you read the last line?
You – No.
Dr. – Which line is the lowest you can read?
You – The 3rd line is E, A, O, M, P
Dr. – Good. However, I think your vision has gotten worse, so you’ll need to get a new prescription. Can you take your lens off and we’ll start again and see what your new prescription is?
You – Sounds great.
I need your help, Yvonne. I don’t know how to use them. These are correct?
I have week-sighted.
I have near-sighted.
I have astigmatism.
Hi Ellie,
I don’t think you can say I have weak-sighted. Maybe I have weak sight.
I am near-sighted and I have an astigmatism.
I hope that helps. Let me know if you have any questions!
Yvonne
Thank you for your help, Yvonne
I can express about my eye sight in English from now on. 

Perhaps, “I’m weak-sighted” is correct?!
I think I have 20/30 with an astigmatism. I need to wear my glasses when I drive a car especially at night.
I’ve never heard anyone say weak-sighted. Either near or far sighted is what I’ve used and heard.
Oh, I see. I just got it! Thanks a million, Yvonne!!
I always enjoy learning from you. 
I’m so glad I could help. Sorry it took so long to reply to that last question! I’ll be better now!
Thanks so much for your support.
how about when we have problems with eye retine ,
Dear Yvonne,
I need to introduce about eyewear store interior design to my student in english. Could you please help me to find out where I can get it?