Selecting the proper Working Distance for Surgical Loupes & Dental Loupes

One important consideration in binocular loupe selection for the health care practitioner is working distance (W.D.)  In addition to properly magnifying the subject, loupe wearers can work long days while minimizing neck strain and possible later visits to the chiropractor.  Whether sitting or standing, upright posture with minimal bending at the waist, hunching of the shoulders, or flexing of the neck is preferred.  


Fortunately, the higher quality loupe manufacturers such as HEINE offer loupes with varying W.D.  Once the proper magnification is selected, for example 2.5x, the user should consider the appropriate W.D.  The HEINE 2.5x HR loupe is available in three W.D.'s: 13" (340mm); 16" (420mm), and 20" (520mm).   Each of these optics has a range of focus, so the center of the focal range is the W.D.  This means that the image will also be in focus +/- about 3.5" from the W.D. (this varies slightly per lens magnification).  Therefore, a lens with a W.D. of 16" will be in focus from the eye for a distance of approximately 13" through 19".    This is a very pleasant range, and the 16" model is far and away the most popular W.D. for both surgical and dental specialists alike.  


Situations can vary, so it is recommended that you work with a partner to help determine your personal W.D.  Assume your typical position and posture when performing actual procedures.  Whether sitting or standing, assume a position that you are comfortable with for longer cases.  Also consider factors such as your standing height (are you taller or shorter), the length of your arms, and the length of torso while sitting.  Simulate your typical working position, but err on the side of maintaining proper posture.  Remember that loupes can prevent unnecessary stooping and hunching, and this may prolong your work day, and possibly your career!  Have your assistant utilize a longer ruler, or tape to measure, from eye to subject, where your typical W.D. falls.  Also remember that quality Loupes,  such as the HEINE 2.5x  13", 16" or 20" W.D. have variability of +/- a few inches, so you will definitely have a good range of focus. 


After you acquire your selected loupes, it is recommended to wear them for a few cases before judging if they are right for you.  HEINE offers a 45 Day Money Back Guarantee, so occasionally a wearer will want to switch from one working distance to another prior to settling on his/her desired specification.  This is not a problem, and we will be happy to accommodate your specific needs. 


For more information see our website, or feel free to contact us directly.  Our coordinates follow. 


Sincerely, 


MDLoupesPro
web: www.gallaghermedical.com
e-mail: sales@gall-med.com
phone: 800.481.0972