Choosing the right 1 month contact lens design depends on your vision needs and lifestyle.
There are four main designs: sphere (for myopia or hyperopia), toric (for astigmatism), multifocal (for presbyopia), and multifocal toric (for presbyopia with astigmatism). This guide explains the differences — and the clinical evidence behind each — to help you and your eye care professional (ECP) make the best choice.
1 Month Contact Lens Design: At a Glance
|
Lens Design |
Corrects |
Best For |
Key Consideration |
|
Sphere |
Myopia / Hyperopia |
People who do not have significant astigmatism |
Silicone hydrogel (SiHy) material recommended for full-time monthly wear |
|
Toric |
Astigmatism + Myopia/Hyperopia |
People with astigmatism in their prescription |
Corrects blurred/distorted vision; improves functional reading performance¹ |
|
Multifocal |
Presbyopia + Myopia/Hyperopia |
Presbyopes without significant astigmatism |
Successfully fitted within two lens selections in clinical studies ²,³ |
|
Multifocal Toric |
Presbyopia + Astigmatism |
People with presbyopia and astigmatism |
78% preferred MT in moderate astigmatism group (1.25 DC) ⁴ |
Always consult your ECP. Lens selection should be based on individual prescription, lifestyle, and ocular health.
Sphere lenses are the simplest and most widely prescribed contact lens design, suitable for wearers with myopia or hyperopia and minimal astigmatism.
For 1 month wear, silicone hydrogel (SiHy) materials are recommended for their high oxygen transmissibility (Dk/t — a measure of how much oxygen passes through the lens to your eye), which supports corneal health during long hours of daytime wear.
Who is this for? You may be a good candidate for a sphere lens if your glasses prescription does not include a significant cylindrical (astigmatism) correction, and you are looking for a straightforward lens for everyday activities such as driving, computer work, or general daily use.
Toric lenses correct astigmatism (≥0.75 DC) alongside myopia or hyperopia, and deliver measurable functional benefits beyond what standard visual acuity tests can detect.
A 2025 study (Plainis & Gleni, University of Crete) showed that soft Toric lenses significantly improved digital reading performance and reading eye movement behaviour — including shorter pauses on each word and fewer times the eye had to go back and re-read — demonstrating real-world benefits not captured by standard eye chart tests alone.¹
Who is this for? Consider a toric lens if you notice that vision is blurred or slightly distorted with sphere contact lenses, or if you find it harder to read clearly on screens and printed text. Toric lenses are particularly beneficial for those who spend long hours on digital devices or reading.
Multifocal lenses address presbyopia — the natural, age-related loss of near focus typically beginning in the early-to-mid 40s — by providing simultaneous correction at distance, intermediate, and near ranges.
Modern multifocal designs use concentric ring-shaped or gradually changing optical zones to balance distance and near vision and are available in different add powers to match the degree of presbyopia. Clinical studies of Miru 1month Multifocal demonstrate strong fitting and visual performance: ²,³
Who is this for? Multifocal lenses may suit you if you are in your 40s or older and find yourself holding reading material further away, struggling to read small print, or needing to switch between glasses and contact lenses throughout the day. They work well for active lifestyles where clear vision at all distances — from driving to reading a menu — is important.
Miru 1month Multifocal: Add Power Selection Guide²,³
|
Add Power |
Best For |
Vision Strength |
Handling Note |
|
Low Add |
Mild presbyopia; active lifestyles |
Better distance & intermediate |
Concentric design; easy application and removal |
|
High Add |
Moderate-to-advanced presbyopia |
Better near vision |
100% of wearers correctly identified the guide marker² |
Multifocal toric (MT) lenses combine presbyopic and astigmatic correction in a single lens.
A 2026 clinical study (Plainis & Gleni, University of Crete; investigator-initiated grant from Menicon) evaluated 24 presbyopes with 0.75–1.75 DC astigmatism wearing MT (asmofilcon A), toric-only (T), and multifocal sphere (MS) lenses for 30 days each. ⁴
Multifocal Toric vs. Toric vs. Multifocal Sphere: Key Findings (n=24, ISCLR 2026) ⁴
|
Outcome |
MT (asmofilcon A) |
T (comfilcon A) |
MS (lotrafilcon B) |
|
Distance VA (1.25 DC group) |
Better (>1 logMAR line (approximately one row on a standard eye chart)) |
Better (>1 logMAR line (approximately one row on a standard eye chart)) |
Reference |
|
Near / Intermediate VA |
Improved |
Reduced |
Improved |
|
Reading speed (low contrast, 1.25 DC) |
Faster ★ |
Slower |
Intermediate |
|
Fixation duration / Regressions |
Efficient (similar to MS) |
Longer / More frequent |
Reference |
|
Lens preference (1.25 DC group) |
78% preferred MT ★ |
— |
— |
MT = Multifocal Toric; T = Toric only; MS = Multifocal Sphere. ★ Statistically significant. Source: Plainis & Gleni, ISCLR 2026. ⁴
The benefit of MT was most pronounced at ≥1.00 DC astigmatism: 78% of the 1.25 DC group preferred MT, reflecting a strong balance of distance and near vision. Eye-tracking confirmed MT reduced visual effort during reading to a level comparable with MS. ⁴
Who is this for? Multifocal Toric lenses may be right for you if you have both presbyopia and astigmatism and have found that multifocal sphere lenses leave your distance vision slightly blurred. They are especially suited to those who need sharp vision for driving, outdoor activities, and sustained near tasks such as reading or computer work.
Miru 1month offers designs across all four categories. Always consult your ECP to determine the most appropriate design for your individual needs.
Q. How do I know if I need a toric lens?
A. If your spectacle prescription includes a cylindrical correction (“CYL” or “DC”), you likely have astigmatism. Generally, ≥0.75 DC benefits from toric correction. Your ECP will confirm.
Q. Can I wear multifocal lenses if I also have astigmatism?
A. Yes — multifocal toric lenses are designed for this. Clinical research suggests that multifocal toric lenses can provide a favorable balance of distance and near vision for presbyopes with moderate astigmatism. In the cited study, 78% of participants in the 1.25 DC subgroup preferred the multifocal toric lens. ⁴
Q. How easy is it to be fitted with a multifocal contact lens?
A. Fitting varies between individuals. In the cited Miru 1month Multifocal studies, 83% of wearers achieved an optimal fit with the first trial lens, and all participants were fitted within two lens selections.²,³
Plainis S, Gleni A. Soft toric contact lens correction of moderate astigmatism improves digital reading performance and eye movement behaviour. Contact Lens Anterior Eye. 2025;48:102450.
Tilia D, Diec J, et al. Assessment of a new, monthly replacement, center-near multifocal contact lens. Poster presented at: American Academy of Optometry Annual Meeting (AAO 2021); November 3–6, 2021; Boston, MA, USA.
CRetallic N, Sugimoto K. Development in multifocal contact lens design. Optician. 2020;262(6781):42–46.
Reviewed by: Menicon Clinical Affairs
Updated: September 29, 2026