Eyeglasses vs. Contact Lens Prescription

Welcome to Ottika's guide on deciphering the distinctions between eyeglasses and contact lens prescriptions. We believe in empowering our customers with knowledge, so you can make informed decisions about your vision correction. Let's delve into the unique aspects of each prescription:

Eyeglasses Prescription:

1. Distance from the Eye:

  • Eyeglasses sit about 12 millimeters away from the surface of the eye.
  • The prescription accounts for this distance when determining lens power.

2. Lens Power:

  • Specified in diopters (D), indicating the strength of the lens needed for clear vision.
  • Adjustments may be made for the distance between the lens and the eye.

3. Pupillary Distance (PD):

  • Measurement between the centers of the pupils, ensuring proper alignment of the lens.

4. Frame and Lens Size:

  • May include details about frame size and lens dimensions for a perfect fit.

Contact Lens Prescription:

1. Lens Power:

  • Typically stronger than eyeglass power due to the closer proximity to the eye.
  • Specifies power needed to correct refractive errors.

2. Base Curve and Diameter:

  • Base curve (BC) represents the curvature of the back surface of the lens.
  • Diameter (DIA) specifies the width of the contact lens.

3. Brand and Material:

  • May include the brand and material of the contact lens.
  • Different materials offer varying levels of comfort and oxygen permeability.

4. Replacement Schedule:

  • Specifies how often the contact lenses should be replaced (daily, bi-weekly, monthly).

5. Additional Parameters:

  • For toric lenses, includes axis and cylinder values for astigmatism correction.
  • Multifocal prescriptions may include details for near and distance vision correction.

6. Expiration Date:

  • Some contact lens prescriptions have an expiration date to ensure current and accurate information.

Understanding these differences empowers you to choose the most suitable vision correction method for your lifestyle. Whether you prefer the fashion-forward approach of eyeglasses or the convenience of contact lenses, Ottika is here to guide you on your journey to clear vision. For personalized assistance or to explore our extensive eyewear options, visit our online collection.

Your vision is our priority at Ottika!