SUBJECTIVE "LIGHTNING STREAKS"

Subjective "lightning Streaks".

Angioid Streaks in Psuedoxanthoma Elasticum

Pseudoxanthoma elasticum (PXE) is a hereditary disorder that affects primarily the elastic tissues of skin, eyes and blood vessels. Its estimated prevalence is thought to be 1:25,000 100,000. PXE patients also carry an increased risk for cardiovascular and gastrointestinal diseases. Early diagnosis can play a crucial role in preventing early loss of vision and systemic complications in these pa...

Streaks in skilled performance.

Experiments in golf putting and darts demonstrated that skilled performance is streaky. The tendency for outcome sequences to form streaks was greatest when the task difficulty was such that about half the trials were successful. Mixtures of the two activities were also streaky, even when periodic interruption made the individual components resemble a random Bernoulli process. Formal models of ...

Classification of angioid streaks.

ANGIOID streaks of the retina were first described by Doyne (1889). They have since been the subject of much controversy. More than 200 cases have been reported in the literature, but histological studies have been few and the changes described have varied. The condition is frequently associated with pseudoxanthoma elasticum, with cardiovascular disease, and with Paget's disease of bone. A simi...

Angioid streaks and elastorrhexis.

ANGIOID streaks are thought to be due to breaks in the elastic lamina of Bruch's membrane. Ophthalmoscopically they present a jagged peripapillary ring which may be incomplete and from which radiate irregular spokes of width similar to retinal vessels. With time, they may progress, or become less distinct. Their colour varies from reddish-brown to dark brown according to the density of the over...