Light Reflex (Noun)
Meaning
Reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller.
Classification
Nouns denoting acts or actions.
Examples
- When examining a patient's pupils, the doctor tested their light reflex by shining a penlight in each eye.
- A light reflex helps to prevent the amount of light that enters the eye, preventing over-illumination and allowing vision to function correctly.
- If a patient does not have a normal light reflex, the condition can lead to partial vision loss due to unevenly exposed areas within the pupil's exposure radius.
- While people rarely get disorders which abolish or worsen a reflex controlling aperture directly caused the over absorption may simply never obtain greater values reducing actual 'usage life and work-time light dependency less troublesome thus if everything moves equally greater amplitude there often gives its benefits somehow anyway according pupillary unsteadiness theory.
- An irregular or negligible light reflex as one's eyes adapt can often be a clear sign of damage affecting transmission along the related nervous system.