Are you planning to purchase new or change your current pair of contact lenses? Worry not. With our comprehensive guide, you’ll be updated with relevant information in no time.
It should be known that contact lenses have been around for decades now. However, the technology that makes the operation of these lenses possible is changing consistently. The lenses that you'd find nowadays are miles apart from what you had commonly found years before and even till today, manufacturers are looking into making these lenses more advanced so that their overall sales could increase. As of the current day & age, there are mainly two types of contact lenses that you can find for everyday consumers: bifocal & multifocal contact lenses. Thus, we’re going to discuss these two in-detail and help you make a well-informed purchase.
In simple terms, bifocal contact lenses are described by two separate or distinct segments for providing power for different types of vision. For instance, the upper half of the contact lens will be used for distance vision while the lower half for near vision. With the help of bifocal contact lenses, you'll be able to change your focus from far to close and vice versa at any required time. Nevertheless, your vision will not be apparent between the segmented parts.
On the other hand, multifocal contact lenses are defined by any type of lens that has more than one vision power, including trifocals, bifocals, and even progressive lenses as well. With the help of multifocal contact lenses, you'll be able to view in any type of direction you'd want, with almost similar kind of vision. Such contact lenses provide you with immense power over having reading glasses.
Therefore, if we're going to describe both of them, then it can be said the bifocals only have two types of vision power whereas multifocal contact lenses are an umbrella term for all types ofcontact lenses that have more than one kind of visual strength. Bifocal contact lenses are a part of multifocal contact lenses.
Depending on the overall design of the lenses, different bifocal as well as multifocal contact lenses work in various ways. The following are some of the significant design elements that they fall under:
The overall design of these types of lenses can be felt similar to the design of the progressive eyeglass lenses. There will be a gradual change in vision power for viewing distant and nearby objects without any visible lines in the current lens. Since these are simultaneous vision lenses, you must be trained enough or have enough learning to use the proper power of the lens at the right moment.
Concentric multifocal contact lenses are those multifocal lenses that contain the vision power to see distant objects in the middle or center of the lens - which is then surrounded by concentrated rings of distant and nearby vision powers according to your bifocal contact lens requirements.
It should be noted that at least two concentric rings of power vision are present around your pupil (in normal light conditions). But, as your pupil constricts and dilates according to the power source, that radius area might change. Usually, these lenses are made from rigid or soft gas permeable contact lens materials.
When it comes to the functioning of a segmented bifocal contact lens, they work much like regular bifocal contact lenses. They are made from rigid gas permeable materials and have different power vision segments which are separated by a line.
As usual, the topmost section would be for distant vision while the lower for nearby vision and your eye will have the capability to see through either one of them - depending on your requirements.
Bifocal contact lenses have been around for quite some time now and only recently have gained popularity. The good thing about technology is that if something doesn’t fit you right, you can always pick another option. According to your condition, you can try any one of the following two options:
However, if the above two options don't work out for you, then you can opt for regular eyeglasses with progressive lenses in them. It should be noted that progressive lenses can help in correcting some amount of astigmatism or any kind of refractive error - which will be unavailable if you use contact lenses. Such glasses can provide you with a sharper vision, including when night-time driving.
Your eyes are an essential part of your human body, and taking care of them in the right manner is what counts the most. With the data as mentioned above, you can easily interpret the differences between the two types of contact lenses and thereby choose the one which suits you the best. Just ensure the brand or manufacturer you're choosing has good reviews, and you'll be fine.
Video Link: https://www.youtube.com/watch?v=JaXU5zMa8TQ
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Yes! All of them are available with prescription. If you have normal eyesight or you simply need a decoration, choose 0.00 / Plano.
Consult your eye doctor to confirm the diopter counts before ordering.
In addition, if you are under 18, please wear the lenses under an expert's guidance.
Cylinder Range: from 0.00 to -3.00
Recommended Power = Sphere + Cylinder/2
For example, if your Sphere (SPH) is -6.00, and your Cylinder (CYL) is -1.00, the power would suite you better will be -6.50. If you cannot find the exact power, please choose the one slightly smaller than the calculated result.
Cylinder beyond the range above, unavailable yet.
Step 1: Take the lens out from the packet gently after washing and drying your hands.Then make sure you are holding the correct side of the lens. (P.S. Please soak the lens in fresh contact lens solution for at least 6 hours before first-time use.)
Step 2: Hold up your upper eyelid and pull down your lower lid,then use the index finger to gently place the lens.
Step 3: Look up and down, left and right after putting the lens in so that it will settle into place, then close your eye in a while.
Step 4: Do again for the other eye through simple steps!
Step 1: Wash and dry your hands thoroughly before touching your eyes.
Step 2: Use your clean hand to gently pull down your lower eyelid, then pull up your upper eyelid.
Step 3: Using your index finger and thumb to pinch the lens gently.
Step 4: Look up and slide the lens down gently so that the lens will be kept in your eye, then pinch it off onto finger. Do it again for the other eye.
First of all, please do rub the lens with solution even if you are using a "no-rub" product.
Step 1: Clean
Wash you hands with soap and use multipurpose contact lens solution to clean your finger which will handle the lens.
Step 2: Rub
Apply at least three drops of contact lens solution on each side of the lens and softly rub the lens 10 seconds per lens side.
Step 3: Rinse
Rinse each side of the lens for 5 seconds to remove the loosened debris.
Step 4: Disinfect
Place the lens in your clean lens case or lens holder and fill with fresh solution. Soak for at least 4 hours.
1. Use fresh care solution each time and discard solution from lens case after each use.
2. Remember to change solution regularly if you do not wear the lens often.
3. Rinse and scrub your lens every 2-3 days to prevent protein precipitation effectively.
4. Keep the lens away from sharp objects because the lenses are very thin and vulnerable.
5. Contact lenses are not one size fits all, please check with your Eye Care specialist to make sure whether the parameters are suitable for your eyes before purchasing.