Central scotoma in tobacco-alcohol toxic optic neuropathy measured with semi-automated kinetic perimetry.

Purpose: To measure the area of central scotoma obtained with semi-automated kinetic perimetry (SKP) in patients suffering from tobacco-alcohol toxic neuropathy (TATN). Methods: Twelve eyes of six patients with TATN were examined with SKP. Area of central scotoma was measured in square degrees (deg(2)). Additionally, static automated perimetry (SAP) within 60 degrees was performed in each patient. Results: Area of central scotoma was 41.8 deg(2) for III4e isopter, 22.9 deg(2) for I4e isopter and 16.1 deg(2) for I2e isopter in TATN patients. SAP revealed central scotoma in all patients. There was 100% of accordance between two methods. Conclusion: SKP is comparable with SAP in assessing central scotoma. SKP offers advantage of measuring central scotoma and assessing remaining peripheral visual field in TATN, even with low incidence and prevalence of this clinical entity.