Can I wear contacts that are not my exact prescription, but similar?

Can I wear contacts that are not my exact prescription, but similar?
Added (1). my prescription is the same in both eyes and I have astigmatism

Power: -2.75 CYL: -1.25 AXIS: 180 Base Curve: 8.7 Diameter: 14.5

I'm looking for lenses for Halloween, just to wear for a couple hours for a costume contest. It's impossible to get astigmatism lenses, so I found some that seem close and was wondering if it's "ok" to wear them for a few hours. Here's the prescription for them

Power: -2.75 Base Curve: 8.6 Diameter: 14.5

Any help would be great! I'm going crazy!

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Legally blind? So scared:?

I went to do my eye exam today.Last Prescription Right 1.25 left 2.25 and this new one is Right 4.5 Left 2.75 is it too bad? :( I've heard that a person is considered legally blind when reach 5.0 is that true… Any advise to correct the astigmatism? My doctor said that I'm not eligible for laser or contact lenses.I'm 29 years old and I'm afraid that my vision gets worse

Thank you for your answers!

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Did I get LASIK too early? Should I be concerned about regression in my results?

Hello, I'm a full-time college student who just had LASIK done almost two weeks ago at the age of 21 (22 in early February). So far I'm very pleased with the results. At my initial consultation I was deemed an excellent candidate for LASIK but due to being on the "younger" side there would be a chance of needing further surgery down the road so it was recommended maybe waiting until i was 23. Being stubborn as I am and being tired of both contacts/glasses I elected not to wait a couple years and have it done now. Now I'm starting to regret my decision and and getting anxious about losing my great results from LASIK. Before my surgery, my prescription was stable for 6 years at -5.00. I understand that as we age, our eyesight tends to get weaker but I'm worried that I will need to use glasses and contacts again so soon for not waiting a couple years more. I plan on voicing my concern at my next post op appointment in 3 weeks. Would love some feedback.
Added (1). Also would like to point out that I have worn glasses for 13 years and contact lenses for 7.

Read more: Did I get LASIK too early? Should I be concerned about regression in my results?

What are your greatest achievements? - 1

I'm a 23 year old Ghanaian female and I am a good girl because I don't smoke, I don't drink, and I don't do drugs. I don't have any STDs. I graduated High School and obtained a Diploma. I have never been in a relationship or marriage before in my entire life. I have never been arrested before. I don't have a criminal record. I don't have any tattoos on my body. I don't wear nose rings or tongue rings. I don't wear fake nails or nail polish. I don't wear contact lenses. I don't go to parties or clubs. I don't bump and grind on guys. I don't twerk and I don't swing on poles. I don't wear thongs. I don't strip or give guys lap dances. I don't call guys on the phone to have phone sex. I'm not a gold digger. I don't makeout with guys in public. I don't rough play with guys. I don't wear high heel shoes and revealing clothes with an intention of getting guys to check me out. I like to cover myself because I respect myself. I don't follow the crowd or try to fit in. I like to follow my own lead and stand out of my peers. I don't hang around bad friends. I am not pressured by my peers because I know right from wrong and I won't allow them. I remained true to myself. I am unpopular and I like myself just the way I am. I will never change myself for anyone. What is so cool about being popular? Popular people aren't any better than me and you. They are human beings just like me and you. I'm not materialistic and I wear what my parents can afford. I am content with what I have.
Added (1). And the most loving thing about me is I am not greedy, selfish, or a wicked person. I don't wait for my parents to pass away so that I can inherit their will or property. And I didn't steal anyone's husband.

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Do I need to have contact lens eye exam every year? See more details down below?

I ask January/2016 I'm due for a contact lens eye exam. My vision hasn't change since I started wearing em. Can I just order em now since my prescription hasn't expired yet. There are also people I know who bought prescription lens one contact lens for a year. She doesn't go to have eye exam yearly, her vision still the same.

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Could wearing prescripted contact lens and glasses make your eyesight worse?

Could wearing prescripted contact lens and glasses make your eyesight worse? - 1

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The difference between blind man and a man that can see?

the light hits the surface of our eye iris and focus on the lense and the image that projected on that lense our brain change it into a neurological signal and than we see an image. And how precisly that image is focus on the lense not every picometer of the precision tells that how correct our vision is. But what is with the blind people what is blindness can you explain

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Moms never satisfied with anything I do?!

So I go straight A's and just one B in algebra. Those are really good grades actually. I try my hardest, but I guess she doesn't understand that. Any parent would of been thrilled to see those grades. I was thrilled too. Guess she wasn't. Instead of saying congrats or good job. She said "your not getting contact lenses if you don't get an A in algebra." Like wtf? I try my hardest and those are good grades. I don't know why she's so cruel towards me.

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Problems with black sclera lenses help?

Okay so at the beginning of the month I received my black scleras and I learned how to put them in and they worked wonderfully. They looked great and made my entire eye look black.
I've worn them quite a few times since. Including to school (But not for very long only for first period because I know you can't wear them for very long periods of time)
However now when I put them on I can still see a bit of green (my eye color) under my pupil. This throws off the entire affect. This bugs the hell out of me and has never happened before. I put them in the exact same way in the same lighting I don't understand whats wrong with them. Is there anything I can do to fix this before Halloween?

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My contact lens turned a tint of pink? Help?!

So I took my lens out last night and when I went to go out them on, I noticed there was a red hair (my sisters hair) inside the contact case and turned my contact a slight tint of pink. I want to know if it's safe to still put them on because I need them and if I order a new pair, it will take over a month for me to get it. Please help. Thanks

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