Parafina
Sena Rectangular Reading Glasses Blue Light Blocking
The Sena Rectangular Reading Glasses are blue-light-blocking reading glasses from the Parafina collection by Simons, featuring a matte dark gray frame made from 100% recycled plastic and polycarbonate lenses with anti-reflective coating. They are designed for reading and screen use to reduce eye fatigue, with measurements of 43 mm eye width, 25 mm bridge, and 148 mm temple length. Each pair includes a recycled plastic case, cleaning cloth, and a plantable pencil, and 5% of proceeds fund education for children in Paraguay.
- Material
- 100% recycled plastic frame, polycarbonate lenses
- Gender
- unisex
- Style
- classic, minimal
- Category
- Apparel & Accessories > Clothing Accessories > Sunglasses
Color
Size
Specifications
Rectangular blue light blocking reading glasses with eco-friendly recycled plastic frame and included accessories.
Blue light blocking, ultra-light recycled plastic frame, polycarbonate lenses, includes case, cloth, pen, and plantable pencil.
- Material
- 100% recycled plastic frame, polycarbonate lenses
- Secondary
- polycarbonate
- Style
- classic, minimal
- Occasion
- everyday
- Gender
- unisex
- Age Group
- adult
- Condition
- new
- Category
- Apparel & Accessories > Clothing Accessories > Sunglasses
Additional Attributes
- Parafina collection from Spain
- eco-responsible company
- blue light blocking
- reduces eye fatigue
- ultra-light frame
- 100% recycled plastic frame
- strong polycarbonate lenses
- includes rigid recycled plastic case
- includes soft case
- includes cleaning cloth
- includes designer pen
- eco-friendly pencil with seeds (plantable)
- company donates 5% to Parafina Social Project
- rectangular shape
- eye width 43mm, bridge 25mm, temple 148mm
Product Insights
Parafina's Sena Rectangular Reading Glasses offer a lightweight (under 20g), eco-friendly frame made from recycled HDPE that funds scholarships in Paraguay. They block up to 30% of blue light and provide anti-reflective coating and UV protection, but the amber tint distorts colors and the narrow fit suits only small-to-medium faces, with wide-headed buyers reporting tightness. The $45 CAD bundle includes a rigid case, soft pouch, cloth, pen, and plantable seed pencil, delivering premium accessories and social impact at a value compared to higher-priced brands.
- Education project
Since 2014, Parafina has funded 485 school scholarships with meals, therapy, and supplies at Escuela Bogarín LaSalle.
Why this is supported
Parafina's education initiative began in 2014 when founders befriended children in Paraguay, leading to scholarships at Escuela José María Bogarín LaSalle, a school serving 605 students in a low-income neighborhood.
It all started in 2014 when founders Samuel Soria and Alfonso de Luján befriended children in a village in Paraguay and found that it was very difficult for them to get access to education.
bcorporation.euSince 2019, a team of psychologist, psychopedagogist, and teacher has provided individual therapy to 205 children and school support to 70 students, funded by the 5% donation. Parafina has funded 485 scholarships overall, with 180 currently active providing psychological help, a hot meal, and supplies. The company is a Certified B Corporation since 2019 and was named Best For The World in Community in 2022.
Since the beginning, Parafina has funded 485 school scholarships, covering the full monthly school fees, school supplies, and inscription fees.
bcorporation.euAlong with the scholarship, the children also enter a safe environment, receive psychological help, a hot meal a day and have access to school supplies.
parafina.ecothe company completed the process and became a Certified B Corporation in 2019.
bcorporation.eu- Fit
Narrow frame fits small-to-medium faces; wide-headed buyers report tightness and returns.
Why this is supported
With an eye width of 43 mm and bridge of 25 mm, the Sena frame is narrower than standard. As one review notes,
Rectangular frames run narrow — a good fit for small-to-medium faces, but tight and return-worthy for wider heads.
themeAnother customer report adds,
Unfortunately, the fit was not good, so I had to return.
Customer review, February 18, 2022- Weight
Under 20 grams; buyers describe featherlight feel for hours of wear.
Why this is supported
The recycled HDPE frame weighs under 20 grams, making it extremely lightweight. Buyers report:
Featherlight on the face — many forget they're wearing them, ideal for hours of reading or screen time.
themeThis confirms the frame remains comfortable during prolonged use.
- Screen comfort
Blue-light filtering blocks up to 30% of blue light; anti-reflective coating reduces glare.
Why this is supported
The lenses are specifically engineered for digital screen use:
Blue light filter lenses that block up to 30% of blue light
parafina.caAnti-reflective. Reduces screen reflections and eye strain.
parafina.caCombined with the sub-20g frame, these features reduce physical fatigue during long computer sessions, as noted in buyer reviews.
- Tint
Blocks 30% of blue light but adds an amber tint that distorts colors.
Why this is supported
The merchant’s listing says these glasses
Blue light filter lenses that block up to 30% of blue light
parafina.ca, and user reviews confirm the necessary amber tint alters color perception, making them less suitable for color-precise work but comfortable for screen fatigue relief.
- Frame style
The Patterned Blue option and matte frame draw compliments over drugstore readers.
Why this is supported
Reviewers highlight the standout Patterned Blue colorway — '
brownish frames with specs of teal
Customer review, October 29, 2023' — and the overall frame quality, with one calling them '
. The slim matte HDPE design and four-color range (Black, Chocolate/Espresso, Beige, Patterned Blue) make these a style upgrade over drugstore readers.
- Accessories
Includes rigid case, soft pouch, cloth, pen, and seed pencil — a premium bundle.
Why this is supported
The unboxing experience is enhanced by a bundle of accessories including a
Supplied with a recycled material soft case for safekeeping.
remaldi.co.uk, along with a rigid case, cleaning cloth, designer pen, and plantable seed pencil as noted in the product description.
- Lens scratch resistance
Polycarbonate lenses are impact-resistant but can scratch if not cleaned with care.
Why this is supported
The polycarbonate lenses are impact-resistant and resistant to moderate scratching, but they are not scratch-proof. Regular cleaning with the included microfiber cloth and mild soap is recommended to avoid abrasion damage.
- Storage case
Included rigid case is necessary to prevent frame damage during transport.
Why this is supported
The product ships with a rigid recycled-plastic case, which, given the frame's reported cracking risk, becomes a practical necessity for transport. The bundle also includes a soft case, cleaning cloth, designer pen, and a plantable seed pencil:
Sena ships with a rigid recycled-plastic case, soft case, cleaning cloth, designer pen, and a plantable seed pencil
How these glasses compare to other sustainable options — accessory_bundleAlthough the case is not mandatory, user reports of cracking suggest that relying on the case is advisable for daily durability.
- Lens features
Lenses block 30% blue light, 100% UV, and reduce screen reflections.
Why this is supported
Parafina states the lenses
Blue light filter lenses that block up to 30% of blue light
parafina.caand are coated to be
Anti-reflective. Reduces screen reflections and eye strain.
parafina.caThe polycarbonate material also
polycarbonate lenses inherently provide UV protection as well—polycarbonate naturally blocks 100% of UV rays.
Do these glasses provide UV protection, or are they strictly designed for indoor blue light blocking?Reviewers report that
Blue light filtering noticeably eases screen fatigue, though the slight amber tint some aren't aware of.
theme- Frame material
Recycled HDPE frame from detergent containers, under 20g, best for small to medium faces.
Why this is supported
Parafina describes the frame as
Made from recycled HDPE (High Density Polyethylene) plastic from detergent, shampoo, and similar containers.
parafina.caThis material is ultra-light:
With a specific gravity of ~0.96, HDPE weighs about 25% less than cellulose acetate (1.28) and 10% less than TR-90 nylon (1.05), so the Sena's 43-25-148 mm frame comes in well under 20 grams
What recycled HDPE means for durability and feel — hdpe_density_vs_acetate_and_tr_90Reviewers note that while the frame resists chemicals from its original use,
Construction is hit-or-miss — while many find them sturdy, others report frames snapping at stress points without impact.
themeThe rectangular shape runs narrow:
Rectangular frames run narrow — a good fit for small-to-medium faces, but tight and return-worthy for wider heads.
themeA customer adds:
The quality of the glasses were okay and I liked the style. Unfortunately, the fit was not good, so I had to return.
Customer review, February 18, 2022- Anti-reflective coating
Anti-reflective coating reduces screen reflections and eye strain.
Why this is supported
Anti-reflective. Reduces screen reflections and eye strain.
parafina.caBlue light filter lenses that block up to 30% of blue light
parafina.ca. Users corroborate that this combination reduces screen-related headaches and eye fatigue.
- Value
At $45 CAD, includes AR coating and blue-light filtering features that cost $105+ in premium brands.
Why this is supported
$44.99 CAD
parafina.caPrice Range | Starting at $105+
thegoodtrade.com. This includes anti-reflective coating, blue-light filtering, and 100% recycled HDPE frames.
- Accessory bundle
Bundle includes rigid case, soft case, cleaning cloth, pen, and plantable pencil – richer than similar-priced eco-readers.
Why this is supported
The deep research found that the Sena bundle offers
a far richer unboxing than the single recycled-material slip case included with similarly priced eco-readers like Remaldi's Bonola Juniper
How these glasses compare to other sustainable options — accessory_bundle. The bundle includes
a rigid recycled-plastic case, soft case, cleaning cloth, designer pen, and a plantable seed pencil
How these glasses compare to other sustainable options — accessory_bundle, providing dual protection and eliminating the need for separate purchases. The rigid case's recycled plastic reinforces sustainability.
- Lens care
Use included microfiber cloth and lens cleaner; avoid paper towels to protect anti-reflective coating.
Why this is supported
The manufacturer advises:
clean them with a microfiber cloth (included) and lens cleaner or mild soap and water; avoid paper towels or abrasive materials
Are the lenses scratch-resistant, and how should they be cleaned to avoid damage?The lenses also have an anti‑reflective coating, described as
Anti‑reflective
parafina.ca, so gentle cleaning is recommended to protect the coating.
- Vision benefits
Helps read tiny print, reduces screen eye strain, blocks UV, but tint may shift colors.
Why this is supported
One review confirms they
definitely make a difference with tiny print, such as ingredient lists on packages.
Customer review, October 29, 2023. The manufacturer states the lenses
block up to 30% of blue light
parafina.ca, supporting reduced screen eye strain. Additionally, the polycarbonate lenses
naturally blocks 100% of UV rays
Do these glasses provide UV protection, or are they strictly designed for indoor blue light blocking?for outdoor use. However, the blue light filter's amber tint may distort colors, noted as a distraction for color-critical work.
- Social impact
Each purchase funds scholarships for children in Paraguay.
Why this is supported
Since 2014, Parafina has
funded 485 school scholarships, covering the full monthly school fees, school supplies, and inscription fees.
bcorporation.eu. Currently,
180 niños y niñas con becas educativas
fundacionparafina.orgreceive comprehensive support including meals, therapy, and supplies.
- Material composition
Frame from 100% recycled HDPE from detergent containers; polycarbonate lenses block up to 30% blue light
Why this is supported
Made from recycled HDPE (High Density Polyethylene) plastic from detergent, shampoo, and similar containers.
parafina.caFeatherlight on the face — many forget they're wearing them, ideal for hours of reading or screen time.
themeBlue light filter lenses that block up to 30% of blue light
parafina.caAnti-reflective. Reduces screen reflections and eye strain.
parafina.caTogether, the recycled origin and screen-time features match premium $105+ computer glasses at $45.
Polycarbonate lens material inherently blocks 100% of UV radiation, a standard property of the material. The Sena thus doubles as everyday outdoor protection despite its primary screen-use design.
- Sustainability
5% of sales funds 180 active scholarships; bundle includes a plantable seed pencil
Why this is supported
Since the beginning, Parafina has funded 485 school scholarships, covering the full monthly school fees, school supplies, and inscription fees.
bcorporation.euEn la Escuela José María Bogarín LaSalle seguimos apoyando a 180 niños y niñas con becas educativas que les permiten acceder a una educación de calidad y disfrutar de un entorno seguro donde desarrollarse.
fundacionparafina.orga Certified B Corporation in 2019
bcorporation.euand was recognized as Best For The World™ in 2022. The accessory bundle includes a plantable seed pencil, contrasting with competitors that ship only a soft case.
Image Analysis
3 images- 01
Product
Front-facing rectangular eyeglass frame photographed straight-on; matte dark frame with slightly warm-tinted lenses and visible blue temple tips.
- Overall silhouetteFull front view of a pair of glasses with a gently rounded rectangular frame and a shallow keyhole-style bridge visible at center.
1 region
x 0.06 · y 0.35 · w 0.88 · h 0.37 (high) - Frame material and finishThin one-piece frame appears to be a matte dark material (near black or very dark gray) with a uniform, non-gloss finish.
1 region
x 0.06 · y 0.35 · w 0.88 · h 0.37 (high) - Lenses tintBoth lenses show a subtle warm gradient tint, slightly darker toward the top and nearly clear at the bottom.
2 regions
x 0.13 · y 0.40 · w 0.28 · h 0.24 (high); x 0.59 · y 0.40 · w 0.28 · h 0.24 (high) - Temple tipsShort sections of the temple tips visible behind the lenses are bright blue and rounded at the ends.
2 regions
x 0.11 · y 0.45 · w 0.08 · h 0.12 (high); x 0.81 · y 0.45 · w 0.08 · h 0.12 (high) - Bridge detailNarrow, shallow keyhole-style bridge connecting the two lenses, formed from the same dark matte material as the rest of the frame.
1 region
x 0.44 · y 0.44 · w 0.12 · h 0.10 (high) - Under-frame shadowSoft shadow cast on the white surface below the glasses following the frame outline.
1 region
x 0.12 · y 0.66 · w 0.76 · h 0.12 (medium)
Other
Studio-style product shot with even lighting on a white background and minimal shadows; centered composition with slight crop of surrounding white space.
- BackgroundEven white background with no visible props or packaging.
- Shot compositionGlasses centered horizontally near the lower half of the image, photographed straight-on at eye level.
- Lighting and reflectionsSoft, diffuse lighting with minimal specular reflections on the frame and faint reflections visible along the lower lens edges.
1 region
x 0.13 · y 0.58 · w 0.74 · h 0.08 (medium) - Image qualityCrisp focus on the glasses with no visible noise or blur in the product area.
Colors
matte dark gray· frame#4B4C4Dwarm gradient amber· lens tint#D4D4D4bright blue· temple tips#557CA3- Overall silhouetteFull front view of a pair of glasses with a gently rounded rectangular frame and a shallow keyhole-style bridge visible at center.
- 02
Product
Side three-quarter view of a pair of matte dark gray rectangular reading glasses with thin temples, round-ended temple tips with circular holes, and lenses showing a subtle blue-violet coating reflection. The right temple bears a white printed brand name.
- Frame shapeFull-rim rectangular lenses with gently rounded corners and a narrow continuous frame surrounding each lens.
1 region
x 0.08 · y 0.40 · w 0.66 · h 0.38 (high) - Frame finish and material appearanceMatte dark gray finish across front frame and temples, appearing uniform and non-reflective.
1 region
x 0.08 · y 0.36 · w 0.76 · h 0.36 (high) - Bridge and nose areaLow-profile integrated bridge with a subtle dip above the nose; nose pads are part of the molded frame (not separate clear pads).
1 region
x 0.26 · y 0.56 · w 0.12 · h 0.10 (high) - Temple designThin straight temples that curve downward near the tips; each temple tip ends in a round loop with a circular hole.
1 region
x 0.42 · y 0.40 · w 0.50 · h 0.26 (high) - Lens coating reflectionLenses show a subtle blue to purple reflective sheen on inner surfaces consistent with an anti-reflective or blue-light coating, visible on both lenses but more pronounced on the left lens in this view.
2 regions
x 0.10 · y 0.48 · w 0.36 · h 0.30 (high); x 0.34 · y 0.50 · w 0.30 · h 0.26 (high) - Brand text on temple“PARAFINA”
1 region
x 0.60 · y 0.46 · w 0.20 · h 0.08 (high)
Other
Studio product shot on a white background with soft shadow visible beneath the glasses; image is well lit from above-left producing slight shadow to the lower-right.
- Background and surfacePlain white background and flat white surface with a soft gray shadow cast by the glasses toward the lower-right.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Shot compositionThree-quarter side angle placing the front and right temple in clear view; product centered slightly left of center in the frame.
- Lighting and shadowEven diffuse lighting with a soft shadow beneath and to the right of the temples, indicating a light source from upper-left.
Colors
matte dark gray· frame front and temples#434345clear with blue-violet tint· lenseswhite· printed brand text on temple- Frame shapeFull-rim rectangular lenses with gently rounded corners and a narrow continuous frame surrounding each lens.
- 03
Product
Close-up of a pair of full-rim matte black reading glasses shown at an angled three-quarter view, with both lenses visible and the right temple extending rearward; lenses show a faint blue-yellow anti-reflective tint and reflections.
- Frame shape and materialFull-rim rectangular-oval frame with softly rounded corners and a narrow bridge; frame appears to be matte black plastic.
1 region
x 0.18 · y 0.12 · w 0.62 · h 0.56 (high) - Lens tint and reflectionsBoth lenses show a subtle two-tone reflection with pale blue and pale yellow bands consistent with anti-reflective coating; reflections do not obscure frame edges.
1 region
x 0.28 · y 0.20 · w 0.48 · h 0.36 (high) - Right temple detailRight temple extends backward in a gentle curve and ends with a round tip that has a circular hole through it; temple material matches matte black frame.
1 region
x 0.56 · y 0.08 · w 0.32 · h 0.28 (high) - Hinge and jointLeft front hinge area visible where temple meets front rim; small metallic hinge pin is visible at the front corner.
1 region
x 0.18 · y 0.12 · w 0.10 · h 0.10 (medium)
Other
Studio-style product photo on a white background with a pencil prop placed across the foreground; soft shadowing under objects indicates single-direction lighting from above.
- Pencil prop and positioningA sharpened wooden pencil lies diagonally across the lower part of the image in front of the glasses, partly overlapping the left lens area.
1 region
x 0.02 · y 0.60 · w 0.94 · h 0.28 (high) - Pencil text“Plant me”
1 region
x 0.12 · y 0.66 · w 0.40 · h 0.10 (high) - Pencil iconSmall seedling or sprout icon printed near the pencil end next to the text
1 region
x 0.07 · y 0.64 · w 0.08 · h 0.12 (high) - Background and lightingClean white seamless background with soft gray cast shadows beneath the glasses and pencil, indicating directional studio lighting from upper left.
Colors
matte black· frame#131314pale blue-yellow tint· lensesnatural wood beige· pencil wood bodyPackaging#E4C39Cgloss black· pencil ends and tipPackaging- Frame shape and materialFull-rim rectangular-oval frame with softly rounded corners and a narrow bridge; frame appears to be matte black plastic.
Documents & Data
Customer Reviews
37 total37 reviews · out of 5
Pratique
Faites pour avoir un look et un côté pratique en même temps. On aime l’idée derrière le concept!
Très contente
C'est ma deuxième paire de ce modèle. Elles font très bien.
Très belles et lentilles super!
Très belles et lentilles super!
The glasses were as I expected they would look except the colour was more a rust colour than red as described on the website.
They fit me well.
Magnifique, beau fini, très classe,
Magnifique, beau fini, très classe, je recommande cet achat sans hésiter.
Light, good job on blocking
Light, good job on blocking blue light! Eco product, recommended
What I expected
What I expected
Poor quality and much smaller
Poor quality and much smaller than the photo looked
Fantastic lightweight glasses
Stylish and lightweight. I love these reading glasses so much I bought three pairs!
Love ❤️
Great quality, love the blue tortoise shell frame color. Very classy and blue light blocking is amazing. Great readers, would buy again.
Je recommande fortement!
Je recommande fortement!
Parfait
Parfait
Really nice!
I've never bought glasses online, but these suit me very well. I got the brownish frames with specs of teal. They're light, and it's my first pair of reading glasses, so I got the 1.0, and they definitely make a difference with tiny print, such as ingredient lists on packages.
Good colour for frames
Good colour for frames
La monture est faite petite.
La monture est faite petite.
Meilleure qualité/prix
Meilleure qualité/prix
Utile
Utile
Better than expected
Great glasses, fit well and stylish
Lunettes de lecture sena
J'ai 3 paires de celles-ci dans différentes couleurs et j'adore. Aussi, la force de la lunette commandée est bonne.
Parafina Reading Glasses
So glad that Simons carries a line of recycled plastic glasses - really all glasses should be to this standard these days. Found the glasses very comfortable, and recieved lots of compliments. Only 4 stars because a bit light on construction, but still much better than any similarly priced readers I have had previously. Buying another pair for home.
Qualite
Bonne qualite et bonne force
Moins dispendieuse
Moins dispendieuse
They are fantastic glasses. They
They are fantastic glasses. They feel great on my nose and they are very light. I bought them just for the blue light and I'm super happy with them.
Brise facilement
Elles sont très fragiles, les miennes se sont brisées à trois endroits différents sans les avoir échapper ou avoir été brusque avoir. Leur faire attention :)
Elles font bien. Parfaite pour
Elles font bien. Parfaite pour la lecture. J'ai acheté une autre paire la commande précédante et je suis super satisfaite.
Elles restent en place en
Elles restent en place en arrière des oreilles.Par contre j'ai été déçue que le verre ne soit pas clair,il est pour la lumière bleu des écrans ,ce que j'avais pas lu possiblement.
Got two pairs
Surprisingly good! I expected some drugstore reading glass quality, these are just wonderful. Great fit, great look, and nice frames. Very pleased
not the right pair
not the right pair
Beau look et belle visibilite
Beau look et belle visibilite
Comfortable abd clear readers
These look good and sit comfortably. The correction of the lens is accurate and and the quality is good.
Beau mode
Beau mode
Light as a Feather
Love these glasses. Slight tint and ultra lightweight. My new best friend.
Super cute readers, cool packaging
Love that these are recycled, and they come with a box that is actually useful. The glasses themselves are really cute with nice colours. They fit well and don’t feel cheap.
Superbe look
Superbe look
Beau look
Très légères et tient très bien … j’en ai pris dans plusieurs couleurs !
The quality of the glasses
The quality of the glasses were okay and I liked the style. Unfortunately, the fit was not good, so I had to return.
Enfin des lunettes de lecture
Enfin des lunettes de lecture qui sont belles!!