I'm sorry to hear about the sudden changes in your vision. Experiencing floaters followed by flashes of light can sometimes indicate a serious eye condition, such as a retinal tear or detachment, which requires urgent medical attention.

What you should do:

• Seek immediate evaluation by an ophthalmologist (eye specialist). This is important to prevent potential vision loss.
• Avoid any strenuous activities or heavy lifting until you have been examined.
• Do not delay seeing a specialist, especially since the flashes appeared suddenly and vision changes are involved.

If you experience additional symptoms like a shadow or curtain over your vision, sudden increase in floaters, or loss of vision, go to the emergency room immediately.

Please contact an ophthalmologist as soon as possible for a thorough eye examination. If you need urgent assistance, you can also call the emergency number provided.To narrow down potential causes, we will need some more information.Please tell me your age and gender. I understand you're concerned about the floater and flashes in your right eye.