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Loupe Fitting Guide

To personalize your order for customized Dental, Surgical, Dental Hygiene, or Veterinary Loupes - we will need your fitting measurements. These can include working distance (WD) and Pupillary Distance (PD).

LOUPE TYPE: (TTL or Flip-Up)

First, you have a choice of loupe type you wish to purchase - either Customized Through-The-Lens (TTL) Loupes or Adjustable Flip-Up or Clip-On Loupes:

Through-The-Lens (Fixed)

Comparison of Custom TTL Through-The-Lens Loupe versus Adjustable Flip-Up Lo for Dental / Medical Useupe

• Most Popular (Our Best Sellers)
• TTL Is Customized to Your Eyes
• Simple, Stable Design (No Adjustments Required)
• Good Ergonomic Angle for a Through-The-Lens Design
• Prescription Lenses Available

Flip-Up (Adjustable)

Comparison of Custom TTL Through-The-Lens Loupe versus Adjustable Flip-Up Loupe for Hygiene / Surgical Use

• Allows for Different Patient Sizes & Procedures
• Flip-Up for Non-Magnified View
• Steepest Ergonomic Angle for Maximum Neck Comfort
• Prescription Lenses Available
• Fastest Shipping
• More Economical


Comparison of Surgical & Dental Loupe Magnification Levels 2.5x 3.0x 3.3x & EDGE

SheerVision recommends a 2.5x level of loupe magnification for dentists, and also for most first-time loupe wearers. Going beyond to a 3.0x or 3.3x will increase the level of magnification – but with a reduction in the field of view. With a 2.5x loupe will allow you to see the entire arch of the mouth – rather than just a few teeth. SheerVision's EDGE and new GenX 4.0 loupes are a fantastic option for those who need to focus on just a small area - like a tooth or blood vessel.

Please note how as the magnification level increases in turn the field-of-view decreases in this image. That is one of the primary trade-offs when choosing a higher magnification loupe.


Third, for all of our loupes we need to get your working distance (WD) measurement. This will insure that the loupes are focused to align with the way you like to practice.  
Loupe Working Distance Measurement Example - Hygienist & Dentist

Working distance varies by height and body type, but also how you sit and work with your patients. The best method is to use a tape measure, or similar measuring device. If you are a dentist, dental hygienist, or dental veterinarian (or any practitioner who sits) - while sitting in an ergonomic position in your normal workspace, measure the distance between your eyes and the patient’s teeth. This is your specific working distance.
Please note that for SheerVision 2.5x magnification that our innovative optical design will provide 5-6” (125-150mm) depth-of-field, which means you will be able to lean in both closer and farther from the patient – without a loss of focus.


Fourth, to customize the TTL (Through-The-Lens) loupes to match your personal traits, we will need your pupillary distance (PD) measurement.  It is just a measurement of the distance between your pupils:

PD Measurement Needed for Dental & Surgical Loupses.

The PD can be measured by any local optician (Costco, Target, Wal-Mart, etc) by using a device as shown - normally for no charge when you tell them you need your PD to order surgical / dental loupes.  

Using a Pupillary Distance Measuring Device (Pupilometer) to measure loupes for a dental hygienist


With SheerVision, you have a choice of frame for both TTL & Flip-Up loupes. We are the exclusive provider of loupes with Under Armour Brand Frames. SheerVision also offers its own frame models including the Performance Titanium, and several other models. Note that some of our frames specifically work for only TTL loupes. We also offer clip-on loupes for our clients that want to clip on a set of flip-up loupes to their existing prescription eyeglasses.


Wear glasses? Need vision correction? No problem.

Normally, if you wear prescription glasses while you work then you will most likely need to have prescription lenses added to your loupes.

SheerVision is happy to assist you with your prescription needs as many doctors and hygienists require that their eyeglass prescription be fitted to their loupe system.

We offer these prescription options:
- Flip-Up Loupe Frame Only (Flip-Up & TTL Loupes) - Provides Distance & Near Correction
- TTL Loupe Frame Only - Provides Distance Correction
- TTL Loupe Magnification Barrels Only - Provides Near Correction
- TTL Loupe Both Frame & Barrels - Provides Both Distance & Near Prescription

For assistance in ordering a loupe system with prescription lenses please contact our Prescription Department Toll-Free at (877) 678-4274, or + 1 310 265 8918 for international customers, by fax at (310) 265-8919, or via e-mail at

Please note that most contact lens wearers will not need prescription lenses for their loupes - as long as they are wearing their contacts with their loupes. If you have any questions about wearing contact lenses with loupes, please feel free to contact us.