What Are Progressive Lenses? A Complete Guide to the Differences Between Distance-Near, Intermediate-Near, and Near-Near Bifocal Lenses
Even if you know about progressive lenses, it can be difficult to understand how they differ from “intermediate-near” and “near-near” lenses. All three are progressive lenses that allow you to see at multiple distances through a single lens, but they excel at different distances and are best suited for different situations.
The three main types are progressive distance-near lenses, which allow you to see from far away to close up; progressive intermediate-near lenses, which focus on seeing from within a room to close up; and progressive near-near lenses, which are designed specifically for the area around your desk and close-up work.
The important thing is not which one is best, but which distance you see most often in your daily life. This article explains how to choose the right option for your lifestyle by comparing their viewing range, peripheral distortion, and advantages and disadvantages.
◎ Comparison Table: See the Differences Between the Three Types at a Glance
| Comparison Item | Distance-Near | Intermediate-Near | Near-Near |
|---|---|---|---|
| Main Viewing Range | From far away to close up | From within a room to close up | From around your desk to close up |
| Clarity at a Distance | ◎ | △ to × | × |
| Clarity Within a Room | ○ | ◎ | △ |
| Computer Work | △ to ○ | ◎ | ◎ |
| Reading and Smartphones | ○ | ◎ | ◎ |
| Intermediate and Close-Up Field of View | Relatively narrow | Wide | Widest |
| Peripheral Distortion | Relatively large | Relatively small | Relatively small |
| Walking and Going Out | ◎ | Primarily indoors | Not suitable |
| Driving | ○ | Not suitable | Cannot be used |
| Main Uses | Going out, driving, and daily life | Office work, household chores, and indoor life | Computers, reading, and detailed work |
*Viewing performance is based on general trends. Actual field of view and viewing distances may vary depending on the prescription, lens design, frame, fitting, and other factors.
For those who want to see from far away to close up with a single pair of glasses
For those who want a wide, comfortable field of view indoors
For those who want to focus on desk work and close-up tasks
◎ What Are Progressive Lenses?
Progressive lenses are lenses where the prescription changes gradually across the lens. In a typical distance-near design, the top is for seeing far away, the middle is for intermediate distances, and the bottom is for seeing close up. You move your gaze up or down depending on what you are looking at and switch between these areas.
Unlike bifocal lenses, they have no lines or visible boundaries, and the prescription changes continuously, allowing you to see distances between far away and close up as well. Intermediate-near and near-near lenses are also types of progressive lenses.
Note that some manufacturers may refer to near-near lenses as “near-near progressive lenses.” This article uses the term “near-near” throughout.
◎ Why Do Progressive Lenses Have Peripheral Distortion?
When the prescription changes continuously from the top to the bottom of the lens, “astigmatic aberration” occurs on the left and right sides of the intermediate and near-vision areas. Astigmatic aberration is an optical misalignment that can cause blurriness, streaking, or swaying in the image. This is not a defect; it is an inherent result of the design used to smoothly connect different prescriptions.
With distance-near lenses, the far-vision area at the top is relatively wide. As you lower your gaze from there toward intermediate and near distances, the clearly visible area narrows, and blurriness or distortion is more likely to appear on either side. The distortion is not uniform across the entire image.
General trend: peripheral distortion and a narrower clear field of view are more noticeable with distance-near lenses
Distance-Near ＞ Intermediate-Near ＞ Near-Near
However, this order is not absolute. It varies depending on the addition power, progressive zone length, distance and near prescriptions, lens design, frame shape, and fitting. Addition power is the strength added to the distance prescription to allow you to see close up. Generally, the stronger the addition power and the shorter the progressive zone, the more noticeable peripheral distortion becomes.
◎ Features of Distance-Near Lenses
For those who want one pair of glasses to cover all aspects of daily life, including going out and driving
Visual representation of how distance-near lenses work. The far-vision area at the top is relatively wide, while blurriness or distortion appears on either side of the corridor leading from intermediate to near distances.
Distance-near lenses are designed to see far away at the top, at intermediate distances in the middle, and close up at the bottom. They provide broad coverage from far away to close up with a single pair of glasses and are well suited for daily life, including going out and traveling.
However, because a wide range of distances must fit within a limited lens area, the clear field of view for intermediate and near distances is relatively narrow. Blurriness or distortion is particularly noticeable on either side of the middle and lower sections. Depending on where you look at a computer screen, you may need to lift your chin, which can strain your neck and shoulders during prolonged use.
When using them for the first time, you may need time to get used to how they work, such as turning your face toward what you want to see and being mindful of your gaze when looking at the ground.
Suitable Situations
- Driving
- Commuting and going out
- Traveling
- Walking around town
- Watching sports
- Attending a play
- Frequently looking back and forth between far away and close up
- When you want to go through the day without changing glasses
Advantages
- Covers far, intermediate, and near distances with a single pair of glasses
- Easy to use for daily life, including going out and traveling
- Reduces the number of times you need to change glasses
Disadvantages
- The clear field of view for intermediate and near distances is relatively narrow
- Distortion is more noticeable on either side of the middle and lower sections
- Prolonged computer work may cause strain on your posture
- You may need to practice until you get used to them
◎ Features of Intermediate-Near Lenses
For those who spend a lot of time indoors, such as at the office or home
Visual representation of how intermediate-near lenses work. They reduce the far-vision function and widen the area usable from intermediate distances indoors to close up.
Intermediate-near lenses are designed to focus on distances from within a room of several meters to close up. In exchange for reducing the ability to see far away, they allocate more area for intermediate and near distances. The viewing distances vary depending on the product and settings.
They make it easier to look back and forth between a computer, television, people in the room, and documents close at hand, and they tend to have less peripheral distortion than distance-near lenses. Because they also allow for a wider viewing area for computer screens, you can maintain a natural posture without frequently moving your face or neck.
They are not suitable for looking at far away objects outdoors or driving. When going out, you will need to change into distance-near or distance-only glasses.
Suitable Situations
- Computer work
- Meetings and consultations
- Watching television
- Cooking and household chores
- Customer service
- Conversations indoors
- When spending long periods at the office or home
Advantages
- Easy to see from intermediate distances indoors to close up
- Easier to achieve a wider field of view for intermediate and near distances than with distance-near lenses
- Easier to maintain a natural posture during computer work
- Tend to have less peripheral distortion
Disadvantages
- Not suitable for looking at far away objects outdoors
- Cannot be used for driving
- You will need to change glasses when going out
◎ Features of Near-Near Lenses
For those who spend long periods looking at computers, documents, and smartphones
Visual representation of how near-near lenses work. They reduce the ability to see far away or across an entire room, while providing the widest possible field of view for the area around your desk and close up.
Near-near lenses are designed to allow you to look continuously from close up to a computer screen and across the depth of your desk. They reduce the ability to see far away or across an entire room, while providing the widest field of view for the area around your desk and close up among the three types.
They make it easier to focus when shifting your gaze between documents, keyboards, and monitors, and they also tend to cause less peripheral distortion. Because the viewing range is limited to working distances, they are not used for walking, traveling, or driving. When leaving your seat, you will need to change into glasses that allow you to see far away.
Differences from Standard Reading Glasses
Standard reading glasses are single-vision lenses set to view at one distance. If they are set for reading distance, a computer screen slightly further away may appear blurry.
Near-near lenses accommodate multiple near distances continuously, such as documents, keyboards, and monitors. They are well suited to compensate for the weakness of reading glasses, where you can see close up but the computer screen is difficult to see.
Suitable Situations
- Prolonged computer work
- Reviewing documents
- Reading
- Smartphones and tablets
- Sewing and model making
- Drawing
- Playing musical instruments
- Detailed close-up work
Advantages
- Easier to achieve a wide field of view around your desk and close up
- Easier to look back and forth between documents and monitors
- Well suited for prolonged close-up work
- Tend to cause less peripheral distortion
Disadvantages
- Difficult to see across entire rooms or far away
- Cannot be used for walking, traveling, or driving
- You will need to change glasses every time you leave your workspace
◎ Viewing Distance and Field of View Are a Trade-Off
The more far-vision capability a lens has, the wider the range of distances it can cover. At the same time, the area that can be allocated to intermediate and near distances is limited, which can narrow the clear field of view. If you limit your viewing distance to indoors or the area around your desk, you can design a wider, more comfortable area for the distances you use most often.
- Prioritize seeing far away: Distance-Near
- Prioritize a wide view indoors: Intermediate-Near
- Prioritize a wide view around your desk: Near-Near
Choose between a wider range of viewing distances and comfort at the distances you use most often
◎ How to Choose the Right Progressive Lenses for You
First, decide where you will use the glasses and what you will be looking at. Use the following selection cards as a guide.
You want to use them for driving or going out
You want to see far away while also checking your car's dashboard and navigation system, as well as documents close at hand.
→ Distance-NearYou spend a lot of time at home or in the office
You want to see people indoors, television, computers, and close-up work clearly.
→ Intermediate-NearYou want to focus on computer work or close-up tasks
You will be looking at monitors, keyboards, and documents for long periods.
→ Near-NearYou want to cover everything with one pair of glasses
Start with distance-near lenses. If you do a lot of prolonged work, you may also want to consider using intermediate-near or near-near lenses for different purposes.
→ Distance-Near + use by purpose◎ How to Use Multiple Pairs of Glasses
Almost no one looks at the same distance all day. Outdoors, you look far away; in the office, you look around the room; and when you sit down, your focus is mainly on the monitor and close up. Just as you choose clothes and shoes for different situations, changing your glasses to suit the task will allow you to see comfortably at each distance.
Going out/Driving
Distance-Near
Work/Home
Intermediate-Near
Focused desk work
Near-Near
Just because distance-near lenses make it difficult to see a computer screen does not mean that progressive lenses themselves are not right for you. You may be using lenses designed for going out for prolonged desk work, and the lens type may not be suited to the task.
◎ What Is Important for Making Comfortable Progressive Lenses
Even progressive lenses of the same type can differ in how they look depending on the prescription and fitting. Before having them made, it is important to provide the following information to your optician in detail.
- The distance to what you see most often: For example, from the driver's seat to the road, from your eyes to a monitor, or from your eyes to documents
- Which distance you want to prioritize: far away, intermediate, or close up
- Addition power: The strength added to the distance prescription to allow you to see close up
- The prescription for each eye: The basis for how each eye sees, including differences between the eyes and astigmatism
- PD and eye point: PD is the distance between your pupils. For progressive lenses, the single-eye PD, which measures the distance from the center of your nose to each pupil, is important. The eye point is the height at which your eyes are positioned within the frame
- Frame height: The vertical height of the lens area. This affects the area available for placing each field of view
- Distance between the lenses and your eyes: Also known as vertex distance, this affects how the field of view and prescription feel
- Frame tilt and curve: The angle and curve of the lenses relative to your face
- Experience with progressive lenses: What is easy or difficult to see with your current lenses, and how long it took you to get used to them
For intermediate-near and near-near lenses in particular, measuring the distance to your monitor and the depth of your desk will make it easier to choose. Rather than simply saying you want to “look at a computer,” you should also explain whether you use a laptop or an external monitor, how many screens you use, and where you place your documents. This will help the optician understand the working area you need.
◎ Summary: Choose Based on Your Priority Distance
Covers everything from far away to close up with one pair of glasses
Provides a wide, comfortable field of view from indoors to close up
Designed specifically for the area around your desk and close-up work
No single type of progressive lens is superior to the others. The best type depends on whether you want to cover a wide range of distances or have a wide field of view for the distances you use most often.
Think about your daily life and choose based on the distance you spend the most time looking at. If you have multiple uses, you may also want to use different pairs of glasses for different situations rather than trying to cover everything with one pair.
Consult with us about the right progressive lenses for you
Tell us where you want to use your glasses, the distances you see most often, and how you currently see, and we will recommend the best combination of distance-near, intermediate-near, or near-near lenses for you.
*The images shown are intended to illustrate the distances each lens type is best suited for. Actual field of view, blurriness, distortion, and viewing distances may vary depending on the prescription, addition power, lens design, frame, fitting, and how the wearer experiences them. If you experience sudden changes in your vision or feel unwell, please consult an ophthalmologist.