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O'S OPTICAL

Core

Core

Titanium Round — Timeless Classic
US$119.99
US$119.99
Sale Sold out
Shipping calculated at checkout.
Color: Black
Lens Options

Provide Your Prescription

Eye SPH CYL AXIS
Right (OD)
Left (OS)

For any special requests or clarifications, please send your prescription (photo/PDF) to our customer service.

Core embodies timeless design with its refined titanium round shape. At just 15.86 g, it offers lasting comfort and a weightless feel on the face. The simple circular silhouette speaks of clarity and tradition, making Core a dependable choice for everyday life, quiet reflection, or creative pursuits.
Specifications:
*Weight: 15.86 g
*Lens Width: 48 mm
*Bridge Width: 20 mm
*Temple Length: 145 mm
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Discover Our Eyewear Care & Service

Online Prescription Glasses Process

Choosing the Right Lens

Selecting the right lens index depends on your prescription strength (diopters). 
  • 0 to -2.00 diopters (mild prescription): 1.56 index recommended
  • -2.00 to -4.00 diopters (moderate prescription): 1.61 index recommended
  • -4.00 to -6.00 diopters (strong prescription): 1.67 index recommended
  • Above -6.00 diopters (very strong prescription): 1.74 index recommended
Note: Prescription strength may also be shown as “sphere (SPH)” in your eye test results. For example, -2.00 SPH ≈ -2.00 diopters

Protected & Thoughtfully Packaged