Effect of axial length on full‐field and multifocal electroretinograms

• DOI: 10.1111/cxo.12529
• Publication Date: 2017-03-07T06:11:31Z
• Authors: Ramya Sachidanandam; Priya Ravi; Parveen Sen
• Keywords: Scotopic vision; Erg

The aim was to investigate the effect of axial length on full-field electroretinogram (ffERG) and multifocal (mfERG) in young Indian subjects.One hundred subjects (44 male) with refractive errors from +0.50 -18.00 DS no myopic retinopathy underwent measurement. ffERG measured, which included scotopic photopic responses according International Society for Clinical Electrophysiology Vision (ISCEV) guidelines. mfERG recorded after correcting error ISCEV standards. dark-adapted light-adapted parameters N1, P1 six rings were analysed length, controlled error. divided into seven groups based length. b/a ratio 3.0 P1/N1 amplitudes length.The ranged 21.79 30.55 mm. Significant negative correlations noted amplitudes, whereas implicit times showed minimal delay increase In ffERG, more decreased compared responses. mfERG, N1 significantly all reduction central ring peripheral rings. affected as amplitudes. ERG did not show statistically significant difference. error.This study quantifies relationship a population. Although reduced significantly, affected. related than Hence, interpretation needs careful consideration increasing