Pattern and Ganzfeld electroretinograms in macular disease.

نویسندگان

  • G B Arden
  • R M Carter
  • A Macfarlan
چکیده

The pattern electroretinogram has been found to be abnormal in all except three cases of maculopathy. This is in contrast to other electrophysiological tests, which are frequently unaffected. The degree of reduction is related to the loss of visual acuity. The response to focal flashes is less affected than the response to pattern.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Evaluating macular function using the focal ERG.

A stimulus consisting of 96 red LEDs mounted in the rear of a ganzfeld bowl was used to elicit focal electroretinograms (FERG) from the central 9 degrees of the retina in human subjects. The luminance of the stimulus was driven sinusoidally at frequencies from 10-60 Hz. The temporal responsiveness and response phase lags of normal subjects and patients with retinal disease were measured. Normal...

متن کامل

Multifocal electroretinography in patients with Stargardt's macular dystrophy.

AIMS To describe the topography of multifocal electroretinograms (ERGs) and to explore its diagnostic value in patients with Stargardt's macular dystrophy (SMD). METHODS 51 patients with SMD were examined by means of the m-sequence technique to characterise the topography of electroretinographic responses in the central visual field. The results were compared with data from 30 normal voluntee...

متن کامل

Cross-sectional study of visual acuity and electroretinogram in two types of dominant drusen.

PURPOSE To compare the changes with increasing age of ERG parameters in relation to clinical data in two distinct phenotypes of genetically determined, dominantly inherited macular drusen: malattia leventinese (ML) and Zermatt macular dystrophy (ZMD). METHODS Ganzfeld rod- and cone-electroretinograms (ERGs) from 15 patients affected with ML and 14 patients with ZMD and clinical data were anal...

متن کامل

A new mutation in the RP1L1 gene in a patient with occult macular dystrophy associated with a depolarizing pattern of focal macular electroretinograms

PURPOSE To determine whether a mutation in the RP1-like protein 1 (RP1L1) gene is present in a Japanese patient with sporadic occult macular dystrophy (OMD) and to examine the characteristics of focal macular electroretinograms (ERGs) of the patient with genetically identified OMD. METHODS An individual with OMD underwent detailed ophthalmic clinical evaluations including focal macular ERGs. ...

متن کامل

Electrophysiological assessment of aphakic cystoid macular oedema.

Focal electroretinograms (FERG), pattern electroretinograms (PERG), and visual evoked potentials (VEP) were studied in a group of 30 aphakic patients with cystoid macular oedema (ACME). When compared with a control group of age-matched aphakics, 35% of patients were found to have abnormal FERG responses and 53%--over half of whom had normal FERG responses--showed abnormal PERG amplitudes. Altho...

متن کامل

ذخیره در منابع من

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • The British journal of ophthalmology

دوره 68 12  شماره 

صفحات  -

تاریخ انتشار 1984