volume 53, issue S125, P9-10 2009
DOI: 10.1111/j.1755-3768.1975.tb01201.x
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Abstract: With the a i m of simplifying the clinical ERG recording, an instrument, adaptable to a slit l a m p microscope, was constructed. Like the applanation tonometer a perspex body is balanced so that, when released, it approaches the patient's cornea (Fig. 1). The adjustment i s facilitated by using a low magnification of the microscope. The end of the perspex body h a s a ring-shaped Ag-Ag C1 electrode and centrally there is mounted a light emitting diode (LED) which s e r v e s a s a stimulation light. During o…

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