REVISION 4 : ENTOPTIC PHENOMENON

REVISION 4 : ENTOPTIC PHENOMENON

ENTOPTIC PHENOMENON

visual effects cause by the eyes.

Multiple Select

Example of entoptic phenomenon.

• Halos

• Floaters

• Diffraction

• Shadow

Diffraction

• occurs when a small luminous source is viewed in dark surroundings.

Haloes

• occurs due to diffraction in the crystalline lens

Floaters

• also known as Flying flies

• may due to retino-choroidal infection

• may due to detachment of the posterior vitreous from the retina

• may due to bleeding into vitreous