Be careful with sudden changes in your vision.

12 May 2025

Vision is one of our most important senses—and also one of the most sensitive. Any sudden change in how we see the world can be a sign that something is wrong. That’s why it’s essential to pay attention to abrupt changes in vision and take timely action.

What is considered a sudden change in vision?
Any visual alteration that occurs unexpectedly and rapidly. Some of the most common symptoms include:

• Sudden blurry vision

• Partial or complete loss of vision in one or both eyes

• Flashes of light or a sudden increase in floaters

• Difficulty focusing or double vision

• Changes in the perception of color, size, or shape of objects

Possible Causes
Sudden vision changes can be linked to a variety of conditions, some of which require immediate medical attention. These include:

• Retinal detachment

• Acute angle-closure glaucoma

• Stroke

• Optic neuropathy

• Vitreous hemorrhages

• Complications from conditions such as diabetes or hypertension

A sudden change in vision may be the first sign of a serious condition that, if not treated promptly, can cause permanent damage. In many cases, early intervention can make the difference between preserving or losing vision.

If you experience any sudden visual disturbance, the best course of action is to seek an immediate ophthalmologic evaluation. At the Espaillat Cabral Institute, we offer advanced technology and a specialized medical team for the diagnosis and treatment of visual emergencies.