Understanding Diabetic Retinopathy and Vitrectomy Surgery

What is the primary effect of diabetic retinopathy on the eyes?

• It improves vision clarity.

• It causes the eyelids to droop.

• It changes the eye color.

• It damages the retina due to blood vessel changes.

How does diabetes affect the blood vessels in the eye?

• Prevents any vessel changes

• Leads to changes that damage the retina

• Causes vessel dilation

• Strengthens the vessel walls

Which part of the retina is responsible for detailed vision?

• Lens

• Macula

• Peripheral retina

• Cornea

What is the role of the peripheral retina?

• It protects the cornea.

• It controls the pupil size.

• It provides wide-angle vision.

• It helps in detailed vision.

What triggers the growth of new, abnormal blood vessels in proliferative diabetic retinopathy?

• Decreased pressure in the eye

• High sugar levels in the blood

• Excessive blood flow

• Closure of existing vessels

What does neovascularization refer to in the context of diabetic retinopathy?

• Shrinking of blood vessels

• Growth of abnormal blood vessels

• Normal healing of the retina

• Decrease in blood sugar levels

What is the main purpose of placing a gas or oil bubble in the vitreous during vitrectomy surgery?

• To improve the patient's vision immediately

• To remove all blood from the eye

• To prevent future eye infections

• To hold the retina in place

Why might an ophthalmologist recommend vitrectomy surgery for a patient with diabetic retinopathy?

• To cure the retinopathy completely

• To remove scar tissue and stabilize the retina

• To enhance the color perception of the eye

• To reduce the size of the pupil

Which of the following is NOT a potential complication of vitrectomy surgery?

• Glaucoma

• Retinal detachment

• Improved peripheral vision

• Cataract formation

What is a key reason to treat diabetic retinopathy even if it doesn't cure the condition?

• To completely restore youthful vision

• To prevent further vision loss

• To change the eye color

• To increase eye pressure