Correlation and Agreement Between the Occupational Vision Screener and Ophthalmologic Tests in Visual Performance Assessment of Surgical Health Professionals

OBJECTIVE This study aims to evaluate the correlation and agreement between occupational vision tests and standard ophthalmological exami-nations across five dimensions of visual performance.METHODS Fifty-three participants underwent assessments for visual acuity (VA), red-green color vision, stereoscopic depth, and phoria using both the Titmus occupational vision screener and ophthalmologist-administered tests, including the Early Treatment Diabetic Retinopathy Study (ETDRS) chart for VA, Farnsworth D-15 for color vision, Stereotest- Circles for stereoscopic depth, and the cover-uncover test for phoria. To compare the correlation or agreement of each parameter between the two methods, correlation coefficients were used to evaluate VA and ste-reoscopic depth perception, Kappa analysis for color blindness, phoria and astigmatism. Statistical significance was set at p < 0.05.RESULTS Test results were finalized with 53 participants, mean age of 29.4 years. A majority of the participants (62.30%) reported a history of prior and/or present use of visual aids. The assessment of visual capacity demonstrated a good correlation between occupational stereoscopic depth and Stereotest-circles (0.5997, p < 0.001) and a moderate correlation between the Occupational best corrected VA and ETDRS best corrected VA (maximum 20/20) (0.4616, p < 0.001). Color vision screening showed a high level of statistical agreement with a kappa value of 1.00. However, the results for phoria and astigmatism were inconsistent with only left-eye astigmatism demonstrating statistical significance (p = 0.047), but with only a fair Kappa value (0.21). CONCLUSIONS Occupational vision tests showed strong to moderate correlation for stereoacuity and visual acuity and high agreement of color with standard methods. These tests are useful for visual screening of sur-gical professionals. Further extensive examinations of other parameters and with a wider variety of participants are required for a more compre-hensive assessment of visual capacity related to specific job tasks. KEYWORDS stereo acuity, visual acuity, vision test, occupation, color vision