flashing light

pathology

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Last updated

July 17, 2026

Quick Summary

Flashing lights in one's vision can be caused by mechanical stimulation of the retina. This often occurs when the vitreous humor, the gel-like substance filling the eye, degenerates and pulls on the retina. Flashes can also signal a torn or detached retina, which requires urgent medical evaluation.

Photophobia, or an intolerance to light, is characterized by painful sensitivity to bright light. Certain diseases and conditions can increase light sensitivity. For example, some genetic disorders like porphyria and xeroderma pigmentosum are associated with light sensitivity. Additionally, some medications can make individuals more sensitive to sunlight.12

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eye disease
Floaters, blind spots, and flashes
Flashing lights in the field of vision are caused by stimulation of the retina by mechanical means. Most commonly this occurs when the vitreous degenerates and pulls slightly on its attachments to the retina. Similar symptoms also arise when the retina becomes torn or detached,…
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Flashing lights in the field of vision are caused by stimulation of the retina by mechanical means. Most commonly this occurs when the vitreous degenerates and pulls slightly on its attachments to the retina. Similar symptoms also arise when the retina becomes torn or detached,…
Read More