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. 2016 Oct 17:10:2031-2034.
doi: 10.2147/OPTH.S118677. eCollection 2016.

Single flash electroretinograms of mature cataractous and fellow eyes

Yasuyuki Yamauchi  1 , Jun-Ichi Mochizuki  1 , Akito Hirakata  2 , Shigekazu Uda  1
Affiliations

Single flash electroretinograms of mature cataractous and fellow eyes

Yasuyuki Yamauchi et al. Clin Ophthalmol. .

Abstract

Background: It is generally stated that opacities of the ocular media, including senile cataract, have little effect on the electrical responses of the retina. However, lower amplitudes and longer implicit times are sometimes observed in electroretinograms (ERGs) of patients with mature cataract.

Methods: Single flash ERGs of mature cataractous eyes with decimal visual acuity less than 0.1 were compared with those of the fellow eyes with decimal visual acuity better than 0.5, in 105 senile cataract patients.

Results: The mean amplitudes and implicit times of ERG a-waves were, respectively, 323.6±95.8 μV and 14.7±3.5 ms in the cataractous eyes and 352.3±96.6 μV and 12.0±1.5 ms in the fellow eyes. The mean amplitudes and implicit times of ERG b-waves were, respectively, 390.1±108.7 μV and 63.4±27.9 ms in the cataractous eyes and 415.3±119.1 μV and 59.0±9.3 ms in the fellow eyes. The mean amplitudes of the a- and b-waves were significantly lower and the mean implicit times of the a- and b-wave were significantly longer in the cataractous eyes as compared to those of the fellow eyes. Postoperative visual acuity was similar in cataractous and fellow eyes.

Conclusion: Even though single flash ERG was influenced due to mature cataract, eyes revealed good postoperative visual acuity. Single flash ERG does not always reflect the foveal function and the visual pathway; nevertheless, it remains a reliable guide to evaluate visual prognosis before cataract surgery.

Keywords: mature cataract; single flash ERG.

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Conflict of interest statement

The authors report no conflicts of interest in this work.

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References

    1. Burian HM, Burns CA. A note on senile cataracts and the electroretinogram. Doc Ophthalmol. 1966;20:141–149. - PubMed
    1. van Lith GH. Application of electro-ophthalmology. In: Michaelson IC, editor. Textbook of the Fundus of the Eye. 3rd ed. Great Britain: Clark Constable Ltd; 1980. pp. 627–632.
    1. Cruz RD, Adachi-Usami E. Quantitative evaluation of electroretinogram before cataract surgery. Jpn J Ophthalmol. 1989;33(4):451–457. - PubMed
    1. Uji Y. The effects of absorption of visible light in the human lens on the electroretinography. 2. Comparison of the spectral ERGs recorded before and after cataract surgery (author’s transl) Nippon Ganka Gakkai Zasshi. 1977;81(9):1321–1327. Japanese. - PubMed
    1. An J, Zhang L, Wang Y, Zhang Z. The success of cataract surgery and the preoperative measurement of retinal function by electrophysiological techniques. J Ophthalmol. 2015;2015:401281. Epub 2015 Oct 21. - PMC - PubMed

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