Free standard shipping and returns on all orders


What is your return policy?

If you are not 100% satisfied, you can exchange or return your items for free within 14 days from shipping. However, you can only exchange for free once.
We provide a 12-month warranty for all our products. The warranty includes, only when it is due to our quality problems, particular eyewear part replacement, lenses replacement, return, and exchange. Please note that customers will be responsible for the shipping cost after 14 days. Extra charges may apply if you place new orders. For more details, please contact our customer service representative for professional help.

To complete your return, we require your order number and member ID .

To return your product, you should mail your product to: J&S Sincere Company(Customer Return), 33 Hammond Unit 210, Irvine CA 92618.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

What is your refund policy?

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Do you have a warranty?

If you feel there is a manufacturing error, return the glasses for inspection within the 30-day warranty period. If our inspection shows the glasses were made incorrectly, we will remake them for you at no charge. Defects in the anti-reflective (AR) coating and photochromic films are warrantied for one (1) year from the date of receipt. This warranty does not cover normal wear and tear to the frames, lenses, or coatings.

I want to return my glasses. How do I get an RA number?

If you need to return an item, follow the simple steps below:

Call, chat, or email us within thirty (30) days of receiving the item to get your return authorization (RA) number.

These items must be included in package:

  1. The eyeglasses, and any accessories, in the hard plastic case that contained the glasses.
  2. A note with the RA# and a brief description of the issue that caused you to return the glasses.
  3. A copy of the prescription that the eye dr. provided, so we can inspect the glasses and determine if they were made according to the prescription.

Returns should be sent to the address provided with your RA number. To receive a replacement order, glasses must be returned in their entirety (frames, lenses, eyeglass case, etc.)

You must pay the shipping fee to mail the glasses to us. If the glasses are found to have a manufacturing defect, we will refund $2.50 of your shipping fee.

I sent my glasses back. What is next?

If you sent them back for inspection, we will inspect them and email you the inspection results. If you sent them back for refund or store credit, we will email you when we have processed the refund or the credit.

Can I exchange the items received?

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at and send your item to:

Sincere Company(Customer Return) 
33 Hammond Unit 210, Irvine, CA 92618



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What is Pupillary Distance (PD)? - LifeArtVision

What is Pupillary Distance (PD)?

Have you ever wondered what Pupillary Distance (PD) is and why it's important when getting new glasses? Eyewear: A Guide for Ecommerce Shoppers, Eyewear shopping, Online glasses shopping

Let's dive into the details of this crucial measurement. In the realm of online shopping, particularly in eyewear, certain technical terms like Pupillary Distance (PD) can be crucial. If you’re curious about what PD is and its significance when purchasing glasses online, you’ve come to the right place. Let’s explore this essential aspect of buying eyewear and its impact on your shopping experience.

Pupillary Distance, often abbreviated as PD, refers to the distance in millimeters between the centers of your pupils. This measurement is vital for ensuring that prescription lenses are precisely centered in your frames. It determines where the optical center of each lens should be located relative to your eyes, ensuring optimal vision correction and comfort. PD is typically measured in millimeters and can be categorized as either monocular (one eye) or binocular (both eyes). Optometrists or trained professionals use a pupillometer to accurately measure this distance during an eye exam.

Why is PD important for online glasses shopping?

  1. Precision in Vision Correction: Correct alignment of lenses according to your PD ensures accurate vision correction. Incorrect PD measurement may lead to discomfort or compromised visual clarity.

  2. Comfort and Visual Acuity: Having the correct PD measurement ensures that the optical center of your lenses aligns with the center of your pupils. Properly aligned lenses reduce eye strain and improve visual acuity, especially crucial for individuals with strong prescriptions.

  3. Frame Compatibility: PD influences frame selection. Frames are designed to accommodate a range of PDs, and selecting frames close to your PD ensures proper fit and alignment.

How to Find Your Pupillary Distance (PD)

Obtain your PD measurement: If your PD is not included in your prescription, you can measure it at home using a ruler and a mirror. Simply align the ruler with the center of one pupil and measure the distance to the center of the other pupil. Repeat this process a few times to ensure accuracy.

  • From Your Optometrist: Typically measured during an eye exam, your optometrist can provide this measurement.

  • Self-Measurement: Use a ruler and mirror to measure PD at home, aligning with the center of each pupil.

Online Glasses Shopping Tips

When purchasing glasses online, many retailers request your PD along with your prescription. Providing the correct PD ensures customized glasses that fit comfortably and provide optimal vision correction.


Understanding Pupillary Distance is crucial for a successful online eyewear shopping experience. By knowing your PD and providing it when ordering glasses online, you ensure comfortable, well-fitted glasses that enhance your vision. Whether you seek stylish frames or specific lens types, accurate PD measurement contributes to overall satisfaction with your purchase. Pupillary Distance, PD measurement, correction, prescription lenses, optometry, frame compatibility are important.

Next time you shop for glasses online, remember the significance of Pupillary Distance and its role in ensuring comfort and effective vision correction. Make sure to have your PD measurement handy to ensure a perfect fit and optimal vision correction. Let us know if this helped by commenting below.

Happy shopping!

DYI tips and download the free PD measurement ruler click here -

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