Related Clues:

• Eye ring
• Ophthalmologist's concern
• Eye part that contracts
• You can see right through it
• Crocus cousin
• You look through it
• Ophthalmologic study
• Part of it makes blue eyes blue
• Membrane of the eye
• Showy perennial
• It contains the ciliary body and choroid
• Purple perennial
• Spring bulb
• It's usually blue, green or brown
• Iris's layer