Southwest Medical

When checking visual acuity, one eye is covered at a time and the vision of each eye is recorded separately, as well as both eyes together. In the Snellen fraction 20/20, the first number represents the test distance, 20 feet.

The second number represents the distance that the average eye can see the letters on a certain line of the eye chart. So, 20/20 means that the eye being tested can read a certain size letter when it is 20 feet away.

If a person sees 20/40, at 20 feet from the chart that person can read letters that a person with 20/20 vision could read from 40 feet away. The 20/40 letters are twice the size of 20/20 letters; however, it does not mean 50% vision since 20/20 sounds like it is one half of 20/40. If 20/20 is considered 100% visual efficiency, 20/40 visual acuity is 85% efficient.

7" 3-Spoke Black Wheel w/ Round, Smooth Urethane Tire.

Each spoke is a flat, 'blade' style. 5/16" Precision Bearing, 1" Hub width.

Fits Quickie wheelchairs and other ultralight wheelchairs.

Features a lightweight fashionable appearance. This product is indicated for expectant mothers with tired, aching legs, minor ankle, leg and foot swelling and minor varicosities during pregnancy. The perfect blend of comfort, health and style is just what the doctor ordered. Available in four sizes and three fashionable colors: silky beige, sun bronze, and classic black.

Designed specifically to absorb ileostomy pouch contents. Conveniently packaged in a dissolvable film packet, which is dropped into the pouch each time the pouch is emptied or cleaned. As the pouch fills, the packet dissolves, releasing granules, which form a gel with the liquid fecal output. The gel remains at the bottom of the pouch away from the stoma. Reduces pouch noise, odor, leakage and peristomal skin irritation.