Dr. Harry Zeltzer, inventor of the X-CHROM Lens, graduated from the New England College of Optometry in 1952 and practiced in Waltham, Mass. for thirty five years. During that time he was a vision consultant to the Army Research Institute of Environmental Medicine, a component of Natick Laboratory as well as to the Helen Keller International Child Sight Program.

In addition to general practice he specialized in treating color deficiency, which culminated in the invention of the X-CHROM lens. Following his retirement in 1986, he mentored students attending eye care missions in developing countries. Realizing the inequity of world eye care was an incentive for him to cofound VOSH-ONE (Volunteer Optometric Services to Humanity of New England). He furthered his commitment by joining the parent organization, VOSH/International. In the past thirty years he served it in various capacities as webmaster, president, executive director and now as director emeritus.

Dr. Zeltzer was the 2003 recipient of the Essilor UNESCO Award, the 2004 Honorary Degree of Doctor of Ocular Science of the New England College of Optometry and the 2008 VOSH/International Lifetime Achievement Award. He was Director Emeritus of Friends of ASAPROSAR (Salvadoran Rural Health), which he served for 20 years, was a Fellow of the American Academy of Optometry and a Fellow of VOSH/International. During WW11 he served in the Army of Occupation of Japan.

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