Is it okay to wear contacts with a different base curve?

Can I order contact lenses with a different base curve? You should never order contact lenses with a base curve that is different from your prescription. This can damage your eyes and cause problems with vision.

Does base curve have to be exact?

The base curve number would be a number between 8.0 and 10.0 millimeters and would be more precise because these lenses need to fit just right. Now that most contact lenses dispensed are soft lenses, this measurement doesn’t need to be quite as precise.

Is there a difference between 8.4 and 8.6 base curve?

Studies show that a single base curve of 8.4mm managed a “good or better” fit in approximately 90% of individuals,1 and base curves of 8.4mm and 8.6mm together encompassed 98% of individuals.

Is there a big difference between 8.3 and 8.4 base curve?

Yes that is a big difference. 8.4 would be a much smaller curvature than what you normally wear and probably would not fit your eye properly. You should send those back and use the size that you normally wear.

What happens if you wear the wrong base curve?

If your lenses have the wrong diameter or base curve, you’ll likely feel that something is always in your eye. If the lenses are too flat, your eyelids will tend to dislodge them when you blink. The wrong size lenses can even cause an abrasion of your cornea.

Should I get 8.4 or 8.8 base curve?

The 8.4mm base curve is still the likely best fit for the majority of eyes. In instances when the 8.4mm lens is too steep, the 8.8mm lens allows a flatter option. This is more likely needed in smaller eyes, and possibly in some very flat corneas.

Is there a big difference between 8.6 and 8.8 base curve?

For soft contacts there is not much difference between an 8.6 and 8.8 BC. The 8.8 BC is “flatter” than the 8.6 lens, meaning that the 8.6 lens has slightly more curvature or “steeper”. The 8.6 base curve will be a better fit for most people.

Is there a big difference between 8.3 and 8.7 base curve?

Does an 8.3mm base curve result in a “steeper fit” compared to an 8.7mm base curve? For the exact same lens (design, type, and brand), that is probably true. In other words, within the same lens, if the 8.3mm lens is too tight, an 8.7mm lens with a lower sag height should provide a better fit.

What base curve do I need?

The most basic rule is that you always want the base curve to be as close to +6.00 as you can get and still have the Rx work. … The more minus the power (less plus power to minus power) the lower plus the base curve will become. A high minus Rx may even have a base curve of +0.25 or even 0.00.

Is there a big difference between 8.5 and 8.7 base curve?

No there is not a big diff between the two base curves. However, it’s the relationship between diameter and base curve that is more important. Also, the material of the lens can also affect the fit. You can have 3 diff contact lenses with the same BC, Diameter and power and they will all fit differently.

Does diameter matter base curve?

The diameter and base curve are important factors in determining what the optimum fit is for you. A proper fit ensures full coverage of the cornea, optimum edge alignment, and adequate movement of the lens for tear exchange.

Does your eye diameter change?

When you’re in your 20s, they’re fully grown at about 24 millimeters , a little larger than a peanut. Your eyes don’t get bigger in middle age. They only grow during childhood and your teens. But the shape of your eyes may change.

How important is diameter in contact lenses?

It’s very important because it shows in which part of your eye the edges of the contact lens will rest. If the diameter is wrong, too small or too large it wont be stable on your eye and move around too much or it can be too tight and cause eye irritation and corneal abrasions.

How good are multifocal contact lenses?

Multifocal contact lenses allow you to see near, medium, and far distances with better visual acuity and less juggling of other devices, like wearing contacts and also wearing reading glasses. They are not for everyone, but they can be very helpful for some people who have more than one refractive error.

Do eyes get smaller as you age?

Okay, so our eyeballs themselves don’t shrink as we grow older – they only appear so thanks to sagging skin around the eyes. … The biggest cause of this shrinkage is the lack of firmness around the eyes that occurs naturally as we age.

How do I know what base curve my eye is?

Generally, your eye doctor will use a keratometer to measure the curve of your cornea, which is the front surface of the eyes – where contacts rest. These numbers help to determine the lens diameter and base curve that appear on your contact lenses prescription.

Are your eyes the same size your whole life?

When we’re born, our eyes are about two-thirds smaller than they’ll be when we reach adulthood. Our eyes grow over our lifetime, especially during the first two years of our life and during puberty when we’re teenagers. For the rest of our lives, our eyes continue to undergo different changes.

Does crying make eyes bigger?

“Because tears are made from our blood, vessels carrying blood to our eyes can dilate or become bigger to allow for more passage of blood to the area — this can contribute to redness and puffiness of the eyes, eyelids, and surrounding skin,” says Jason Brinton, MD, a board certified LASIK surgeon in St. Louis.

How can I make my eyes look younger?

Botox injections, skin treatments, or chemical peels may be better for you.
  1. Botox. Botox is one of the best known methods for eliminating wrinkles around the eyes. …
  2. InterFuse Treatment Cream EYE. This skinbetter daily treatment cream offers a daily option for fighting lines under your eyes. …
  3. Invisilift 3-Minute Mask. …
  4. VI Peel.

How do you make your eyes look bigger as you age?

Why do eyes go puffy after crying?

By the process of osmosis, water from your tears flows through a semipermeable membrane into the tissue around your eyes to balance out the concentration of salt on either side. This causes your eyes to appear puffy, which is only aggravated when you rub them while you’re crying.