Vision for Retirees

• I am receiving a monthly TCRS pension or I am a higher education ORP retiree and I am continuing single coverage on the retiree group health plan, can I enroll in retiree plus spouse coverage on the vision plan?
• I am continuing spouse only coverage on the retiree group health plan. Can I enroll my spouse on the retiree vision plan?
• I am over 65 and enrolled on the Tennessee Plan Medicare supplement. Am I eligible to enroll in coverage on the retiree vision plan?