What question did this study set out to answer?

The aim is to evaluate the use of CCTV and optical aids among veterans and their impact on reading performance.

March 21, 2026

Parameters in the Use of CCTV's and Optical Aids

Key Points

The aim is to evaluate the use of CCTV and optical aids among veterans and their impact on reading performance.
Analyzed data from 96 veterans using CCTV for at least 2 years
Assessed reading speeds and durations with CCTV and optical aids
Measured visual acuity for near and far distances
87% of patients continued using CCTV proficiently
50% of patients used both CCTV and optical aids for near work
CCTV led to significantly longer reading durations
No correlation between visual acuity and reading performance metrics
Linear magnification and working distance influenced reading speed on CCTV

Abstract

Abstract Data from 96 veterans who had been using a closed circuit television (CCTV) for at least 2 years are presented. Most patients (87%) reported continuing use of the CCTV and demonstrated their proficiency in its use. Fifty percent of all patients used an optical aid, as well as a CCTV for near work. These patients did not differ on mean reading speeds for either type of aid, but the CCTV did provide significantly longer reading durations. Neither near nor far visual acuity measures were correlated with performance variables. Linear magnification, working distance, and effective magnification on the CCTV appeared to interact to influence CCTV reading speed. The data have clear implications for clinical practice.

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