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<div>A COMPARISON OF THE RELIABILITY AND VALIDITY OF VISUAL ACUITY TEST TARGETS</div><div><br></div><div>Research Project X-676 (Av-357-p) Report No. 1</div><div><br></div><div><div>NAVAL SCHOOL OF AVIATION MEDICINE</div><div>U. S. NAVAL AIR TRAINING BASES</div><div>PENSACOLA, FLORIDA</div></div><div><br></div><div>BY LT. Richard Trumbull, H(S), USNR and LT. (jg) Oscar Backstrom, Jr., H(S), USNR<br></div>
<br>Subjects: Naval School of Aviation Medicine; eye exams; ophthalmology; optometry; aviation medicine</div>
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U.S. Navy. Naval School of Aviation Medicine</div>
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