Is it ok to have -25 power on contact lenses

Hello so my contact lens power is -4.00. And I want these lenses but they ran out of -4.00. Can I use -3.75

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How to treat blurry eyesight?

My eyesight get blurry whenever I look to distant objects. How can I improve my vision without wearing glasses or contact lenses? Please help!

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Explain things about Ballistics and Firearms?

I need help answering these questions. I hope you guys can help:)

1. What happens to the surface of a bullet when it penetrates different objects?
2. A ballistics examiner finds that the bullet head has trapped some human tissue overlapped by strands of plastic found in contact lenses. What does this signify?
3. How do ballisctics experts determine firing distance?
4. Why is it possible to trace a bulet back to the gun that fired it?

and this question is a bit long. I don't know which gun it is though…

5. Police are called to a farmhouse where someone has been shot. The victim survives but can't tell much about the shooter since it happened at night. The bullet cannot be found, but police discover a firearm in the shed. Another is found in reeds by a creek. They both show fingerprint impressions. The gun from the shed looks well-maintained and clean as if it was recently handled. It is not coated with dust like everything else, so police are suspicious. The barrel is examined by a ballisctics expert who finds that the barrel is coated with a fine layer of rust. The gun from the creek bank also contains rust, but it is found only around the first few centimetres of the muzzle. Which of these weapons is the most likely to have been involved in the shooting, and why?

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Is Sofmed better or Acuvue?

I have sofmed toric weeklies and my eyes feel dry and tired by the end of the day when I wear them. My friend recommended me Acuvue because she wears them and feels fine. I want to know if Acuvue is better than Sofmed.

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Is it alright to clean your contact lens cases with boiling water?

I've heard a few people telling me to do that but can the water actually melt or damage the case?

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Can I wear contact lenses if I have severely dry eyes?

Can I wear contact lenses if I have severely dry eyes?

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What's the difference between soft contact lens and hard contact lens? - 1

which is better than the two and why?

thanks

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Need to tilt my head to see clearly out of new glasses?

I recently purchased a pair of HD progressive glasses. Details as follows:

Old Glasses:
1.67 plastic progressives with AR coating; worn for 4 years
OD Sphere -6.00, Cylinder -.50, Axis 095, Add 2
OS Sphere -7.25, Cylinder -.50, Axis 085, Add 2

New Glasses:
1.67 High Definition plastic progressives with AR coating
OD Sphere -5.50, Cylinder -1.00, Axis 090, Add 2
OS Sphere -7.00, Cylinder -.75, Axis 090, Add 2

The old glasses had become slightly overcorrected over time as my eyes had improved slightly; something I had not heard of until my optometrist said this was common as your eyes age (I am in my early 50's). Despite the overcorrection, however, the glasses did not cause me any discomfort or eyestrain, other than the fact I had to look through a lower part of the lenses than I would have normally if the lenses were not overcorrected. Despite the overcorrection, once I found the appropriate level on the progressives, I could see pretty much equal out of both eyes.

I have been wearing the new glasses for about 3 days now. There is no doubt the overall vision is better than with my old glasses, as I don't have to tilt my head up as far to see clearly. However, I am experiencing major eye strain especially at the computer or while looking at anything close up.

I tried covering one eye at a time to see if I could notice anything different. If I look straight ahead at the computer screen, for example, I can see clearly out of the left eye. With the right eye, however, I am unable to see the screen clearly, no matter what level I look through the lense, unless I tilt my head sideways to the left. But doing this then skewers the vision in the left eye.

Bottom line - I can't see with clarity at short range while looking at something straight on with the right eye. I have to look slightly sideways.

Do you have any suggestions as to why this is happening? I have been back to the optician and they say the measurements etc of my new glasses are correct (digital measurements were used; a first for me, but apparently 5 times more accurate than manual measurements).

Needless to say this problem is causing me a fair bit of anxiety as the glasses were very expensive and I really need to be able to get them right. As well the eyestrain is so bad, I am having to revert back at night to my old glasses just to get some relief, but I know this is not recommended as it delays adjustment time.

Any advice or help would be appreciated!

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Is it safe to soak my contact lenses in artificial tears?

I've run out of contact lens solution and I was wondering if it's safe to soak my lenses in artificial tears for a night or two, and if it would be ok for me to wear them immediately after.Thanks!

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My contact lenses prescription is 14.0 diameter and 8.4 base curve. Can I get these lenses?

Unfortunately colored contact lenses come on limited sizes if I'm trying to get the high quality brands. Is it okay for me to buy ones this size?

1) First kind
B.C 8.6
Diameter 14.2
2) Second kind
B.C 8.5
Diameter 14.2
3) third kind
B.C 8.6
Diameter 14.5

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Adjustable or non adjustable lenses for VR headset?

There are VR headsets with adjustable and non adjustable lenses. But the positioning of the eyes and the interpupillary distance differs from person to person. Therefore why is non adjustable VRs even manufactured in the first place?

If you are going to buy a Virtual Reality Headset (VR), would you go for adjustable or non adjustable lenses?

Thanks

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Contact Lenses vs Eyeglasses?

Contact lenses are on the pupils. Eyeglasses are 0.5" or 15mm from the pupils. Contact lenses help the near sighted vision, while eyeglasses help the far sighted vision. By how much? -0.25 or -0.5?

When we take the eye exams, do optometrists give us the contact lenes or eyeglasses presription readings?
Added (1). My question may not be clear.

Since eyeglasses are away from the pupils while contact lenses are on the pupils,
(1) For near sighted, we need weaker presription for contact lenses but stronger prescription for eyeglasses.
(2) For far sighted, we need stronger presription for contact lenses but weaker prescription for eyeglasses.
BUT by how much? +0.1 or +0.2 or +0.3 or +0.4?

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Can I get colored lenses for astigmatism?

I really want colored and this is my prescription.
OD: spherical: +0.50, cylindrical: -5.25, axis: 165
OS: spherical: +1.00, cylindrical: -5.50, axis: 180

My eye doctor said I can only get this one custom hard lense that will cost me $300 after insurance coverage. My friend has the same prescription but she got Acuvue Oasys from her doctor! I don't find that fair and will have a talk with my doctor tomorrow but can I get any lense that has color for my prescription? Thanks!

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What is non prescription lenses?

I really want to get coloured contact lenses. On the store I'm using it has the option 0.00 (non prescription) .
my eyesight is really good; I can see things from a pretty long distance, is non prescription lenses basically a normal lense that anyone can use? (I think I am a normal eye type)
if not, how can I find out what prescription I am and if I go to an optician is it free to check what I am?

(I'm sorry; I really know nothing about eyes.

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Acuvue Oasys contact lenses?

Okay I get the "6 months" supply of Acuvue Oasys contact lenses(I think there is six of each eye in each box). But I just got in trouble when I went to re order them, when the lady asked how long i wear the lenses. I said month or two lol. Which I did thought you could stretch them out for at least a month each pair.

So how do they work cause I don't quite understand? The lady said I should be wearing them for only two weeks cause they could be damaging to my eyes. So how does that work to 6 months? I worked it out and I figured I should wear two pairs a month? Am i right?

How do you guys wear your Acuvue Lenses?

PS. If I don't wear them right away when I get my lenses like for a month cause I want to have them as long as i can i guess cause I don't have much money at the moment and I got a wedding to go too in five months so I want to make sure I can have contacts for then. Can they expire?

thanks

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Do Contact Lenses/ Lense Cases Contain BPA?

I have a leak free plastic rite aid case and acuvue oasis lenses. Any of these got that dirty chemical in them? I'm not trying to grow breasts.
Thanks, I really hate this country and the cheap, sleazy things we do and use in everyday things.

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