To the Editor.
—The testing of visual acuity in a young child or an illiterate patient is often a difficult task. Poor attention and comprehension of the examination may compromise the accuracy or validity of the results. The HOTV acuity testing system (Good-Lite Co, Forest Park, Ill) is a widely used method for testing visual acuity in these patients. However, the testing is complicated by difficulty in directing the patient's attention to the letter of interest. We have devised a technique for handlight retroillumination of the standard HOTV visual acuity chart to simplify the examination procedure.The patient is seated in the examination chair holding the HOTV's standard letter board. The patient is instructed in the technique of recognition of matched letters for the examiner's HOTV chart to the patient's board. The examiner faces the patient from a distance of 10 ft and holds up the HOTV acuity chart. Using
Rubenstein JB, Deutsch TA, Talbert KE. Handlight Retroillumination in HOTV Visual Acuity Testing. Arch Ophthalmol. 1985;103(11):1634. doi:10.1001/archopht.1985.01050110028013