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Updated: Jul 8, 2026

Multifocal Electroretinograms

Multifocal Electroretinograms

Published on: December 4, 2011

A clinicoepidemiological study of polymorphic light eruption.

Lata Sharma¹, A Basnet

¹Department of Dermatology and Venereology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India. lataims@rediffmail.com

Indian Journal of Dermatology, Venereology and Leprology

|January 12, 2008

Summary

Polymorphic light eruption (PLE) affects 0.56% of the Indian population studied, primarily housewives. Symptoms are typically mild, appearing on sun-exposed areas and recurring in over 30% of cases.

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Area of Science:

Dermatology
Epidemiology
Photodermatology

Background:

Polymorphic light eruption (PLE) prevalence is known globally but lacks data from India.
India has high levels of sun exposure, making PLE data crucial.

Purpose of the Study:

To determine the prevalence of PLE in India.
To characterize the clinical and epidemiological features of PLE in an Indian population.

Main Methods:

A clinico-epidemiological study was conducted.
Data was collected from the skin outpatient department (OPD) over a 12-month period.

Main Results:

The prevalence of PLE was found to be 0.56% (220 out of 39,112 OPD cases).
PLE predominantly affected females (138) over males (82), with most patients having skin types IV-VI (96%).
Housewives constituted the largest affected group (81), followed by students (67).

Conclusions:

PLE is present in India with a prevalence of 0.56%.
The condition is generally mild, affecting sun-exposed areas like the neck, forearms, and arms.
PLE showed seasonal peaks in March and September, with a recurrence rate of 31.36%.