Certified Paraoptometric (CPO) Practice Exam 2025

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Gear up for the Certified Paraoptometric (CPO) Exam 2025. Study with interactive quizzes and multiple-choice questions with comprehensive explanations. Excel in your exam with our tailored preparation tools!

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What phenomenon is caused by mechanical simulation of nerves in the retina?

Floaters
Flashes
Pinguecula
Retinal detachment

The correct answer is: Flashes

The phenomenon associated with mechanical stimulation of nerves in the retina is flashes. When the retina is stimulated, it can lead to the perception of flashes of light, even in the absence of actual light stimuli. This can occur due to various factors, including traction on the retina from vitreous changes or during instances of retinal tears or detachment. Floaters, on the other hand, are caused by the presence of small particles in the vitreous humor that cast shadows on the retina, leading to the sensation of seeing spots or strands. Pinguecula is a growth on the conjunctiva, not related to nerve stimulation in the retina, and retinal detachment refers to a serious condition where the retina separates from its underlying layer, which does not originate from mechanical nerve stimulation.