Cornea
The cornea is the window of the eye
1 min read Dr. Alejandro Navas Pérez
Cornea and refractive surgery
When it loses clarity or changes shape, vision blurs even with the right lenses: a prescription that will not settle deserves an exam.
The cornea is transparent and has a very precise curve. Those two things are what let light come in clean and land focused at the back of the eye. When either changes, vision blurs or distorts even with a correctly measured prescription.
Signs worth a visit
- A prescription that keeps changing and never quite settles.
- Halos or glare around lights at night.
- A gritty feeling, burning or watering that keeps coming back.
- Vision that clouds over in spells and clears when you blink.
None of those signs means something serious on its own, and several have simple explanations. What they do mean is that the right next step is not a new prescription at the optical shop, but a corneal workup.
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Tags CorneaBlurred visionOcular surface
