5 C.F.R. § 894.813
Yes, you are eligible to enroll in a FEDVIP vision plan only. A TEI former spouse is not eligible to enroll in a FEDVIP dental plan. You are a TEI-V, and you are an enrollee, however your type of enrollment is limited to self only. You may not enroll a child, even if the child is a TEI child. The TEI child will have his or her opportunity for FEDVIP dental and/or vision coverage through your ex-spouse sponsor, or TEI certifying family member as the case may be. It is possible for a minor TEI child to be the TEI certifying family member eligible to enroll as an enrollee. If this is the case, you (or the TEI child's legal guardian if not you) may effectuate that enrollment by accepting responsibility on behalf of the TEI child to self-certify as enrollee by enrolling and, if appropriate, covering other TEI family members of the sponsor. Accepting responsibility to self-certify as enrollee on behalf of the TEI child includes consulting all of the TEI family members of the TEI certifying family member regarding their preference for coverage under the enrollment, electing an appropriate plan, option and type of enrollment, and paying the premium on behalf of the TEI child and other TEI family members for the enrollment.
5 C.F.R. § 894.813