TY - JOUR AU - Mäntyjärvi, Maija AB - BY Valter Elenius and Maija Manty jarvi In a previous report on EOG and ERG examinations of subjects undergoing chloroquine treatment (Elenius and Mantyjarvi, 1963) there was no case with manifest retinopathy included. Recently we have examined a patient with macular degeneration who had taken a total dose of 505 g of chloroquine diphosphate for treatment of rheumatoid arthritis. Results of ophthalmological examinations of this patient including EOG recordings are reported below. METHODS A N D PROCEDURE The electrodes used for recordings of the EOG were chlorinated silver plates about 2 mm in diameter. A small amount of electrode jelly was added and the electrodes were fastened with adhesive tape to the skin near the medial and lateral canthi of the lids. A third silver plate, connected to earth, was placed on the skin of the forehead. All recordings were made with a Tektronix (Type 122) preamplifier connected to the DC-differential amplifier of a Tektronix (Type 502) oscilloscope. An amplification of 1 mV/cm, sweep velocity of 1 cmlsec, time constant of 1 sec and high frequency filter of 1 KC were used. The subject to be examined was seated (at a distance of one meter) in front of TI - A CASE OF CHLOROQUINE RETINOPATHY EXAMINED BY ELECTRO OCULOGRAPHY JF - Acta Ophthalmologica DO - 10.1111/j.1755-3768.1967.tb06484.x DA - 1967-02-01 UR - https://www.deepdyve.com/lp/wiley/a-case-of-chloroquine-retinopathy-examined-by-electro-oculography-q6odQFy74B SP - 114 VL - 45 IS - 1 DP - DeepDyve ER -