Multifocals

 

Click here to watch a PowerPoint presentation on how to adjust to Progressive Multifocals. (You must have Microsoft PowerPoint, if you don’t, you may download a PowerPoint viewer by clicking here.)

 

Full Presbyopia is a condition when your eyes no longer have any focusing power remaining at all. Because of this your eyes do not have much, if any focusing power and your range of vision becomes compressed optically. This is due to the accumulation of wisdom. What needs to be understood when this is your visual status, is that if you have only bifocals you will be able to see far away and for near 13″ to 18″. But you will not be able to focus for that middle intermediate zone 18″ to 40″ (That is where the following activities and items are: shopping, speedometers, playing cards, computer monitors, maps, spread-sheets, newspapers, etc). A better design of lens may be important if you need to see in the intermediate zone. This could be a trifocal or a invisible progressive multifocal.

 

People have many alternatives when it comes to choosing how they would like their prescription filled for reading and close work. Each of the choices have advantages and disadvantages. This will give you a comparison. Please keep in mind that glasses which correct presbyopia will be a compromise compared to how the eyes worked 10 or 20 years ago. You’ll have to learn to use and move your eyes and head differently.

 

BIFOCALS

(This is like a two speed transmission)

In this system you have two (bi) focuses: far and near. This enables you to read and do close work, and also see clearly far away without taking your glasses off. The biggest advantage of bifocal lenses is the convenience of not having to take your glasses on and off constantly. If you can see in the distance without glasses, wearing bifocals does not mean that you have to wear glasses all the time.

 

TRIFOCALS

(This is like a three speed transmission)

This lens system has three (tri) focuses. Far, for viewing something like a clock on a far wall; reading for 12″ to 20″; and the intermediate or in between range so you can see soup cans in the supermarket, playing cards, or the dashboard of your car. This is very important when you reach full presbyopia.

 

INVISIBLE PROGRESSIVE MULTIFOCALS

(This is like an automatic transmission)

This is the next extension beyond the trifocal. It has the advantage of not having any lines and it has a continuous range of clear vision from far to intermediate to near.

 

Invisible progressive multifocal is a significant advancement in lens design. It has many powers that slowly increase in power between the distance prescription and the total near prescription. Because of this, you have a continuous range of clear vision from far away (driving and movies) through a middle range (playing cards and reading labels at arm’s length) to your near prescription (reading and sewing). There are no lines on the lens for you or anyone else to see.

 

Our office has a sample set of invisible progressive multifocals for you to experience. Read with them, walk with them, and take your time exploring their advantages and disadvantages. Please note the progressive power channel leading down to the near prescription and their widths. Like regular bifocals, these lenses are designed for people who move their head more than their eyes when they look from side to side. ALL spectacle lenses have some degree of distortions and aberrations, but these are different in nature. Because of the unique curves on these lenses, to attain the progressive powers, some distortions and aberrations are generated on the lower outside edges.

 

Invisible progressive multifocals are available in glass, photogray,
plastic, and ULTRA-LITEStyle, and sunglasses.

 

Do not hesitate to return for adjustment of your frames if they are bumped, misaligned, or you have any concerns after first wearing them constantly for two weeks and allowing yourself time to adjust.

 

This special lens is higher in cost, but if you feel this is an ideal lens for you, it is well worth it over a 2 to 4 year period. Much like contact lenses or any other bifocal, motivation is a key factor. When deciding on these lenses make sure that they are what you want and that you are willing to work with them to overcome the initial adaptation. As with any new pair of glasses, you may have a learning period during the first few days while your eyes and brain learn how to use them. This is perfectly normal. If you have other glasses, put them away so you will not be tempted to use them again before you have given yourself enough time to get used to your new lenses.

 

While learning how to use your new lenses, remember these tips. Do not allow your glasses to slide down your nose. Wear your glasses as close as possible to your eyes. Turn and tip your head toward the object you want to see. If your frames are uncomfortable, visit us for an adjustment. Do not attempt to adjust them yourself.

 

Invisible progressive multifocal is a significant advancement in lens design. It has many powers that slowly increase in power between the distance prescription and the total near prescription. Because of this, you have a continuous range of clear vision from far away (driving and movies) through a middle range (playing cards and reading labels at arm’s length) to your near prescription (reading and sewing). There are no lines on the lens for you or anyone else to see.

 

Our office has a sample set of invisible progressive multifocals for you to experience. Read with them, walk with them, and take your time exploring their advantages and disadvantages. Please note the progressive power channel leading down to the near prescription and their widths. Like regular bifocals, these lenses are designed for people who move their head more than their eyes when they look from side to side. ALL spectacle lenses have some degree of distortions and aberrations, but these are different in nature. Because of the unique curves on these lenses, to attain the progressive powers, some distortions and aberrations are generated on the lower outside edges.

 

Invisible progressive multifocals are available in plastic, transitions, and ULTRA-LITE, High Index materials and sunglasses.

 

Do not hesitate to return for adjustment of your frames if they are bumped, misaligned, or you have any concerns after first wearing them constantly for two weeks and allowing yourself time to adjust.

 

This special lens is higher in cost, but if you feel this is an ideal lens for you, it is well worth it over a 2 to 4 year period. Much like contact lenses or any other bifocal, motivation is a key factor. When deciding on these lenses make sure that they are what you want and that you are willing to work with them to overcome the initial adaptation. As with any new pair of glasses, you may have a learning period during the first few days while your eyes and brain learn how to use them. This is perfectly normal. If you have other glasses, put them away so you will not be tempted to use them again before you have given yourself enough time to get used to your new lenses.

 

While learning how to use your new lenses, remember these tips. Do not allow your glasses to slide down your nose. Wear your glasses as close as possible to your eyes. Turn and tip your head toward the object you want to see. If your frames are uncomfortable, visit us for an adjustment. Do not attempt to adjust them yourself.

Our guarantee:

 

In the event that you are unable to adapt to these lenses in 3 weeks,

we will be happy to switch you to another style of lens.