Please assess the completion status of the following clinical trial:

Trial Title: Effects of Prismatic Spectacle Lenses on Symptoms of Dizziness, Headache and Anxiety as Caused by Vertical Heterophoria

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* First time appointment for a patient at designated optometry office for treatment of symptoms associated with Vertical Heterophoria~* Must have symptoms of dizziness or headache or both:~  * Dizziness defined as one or more of these: lightheadedness,dizziness, vertigo, feeling off-balance, lack of coordination / clumsy, unsteadiness while walking or drifting / veering to one side while walking, motion sickness~ * Headache defined as one or more of these: pain anywhere in the head,posterior neck / upper trapezius (upper back), face, and in and / or around the eyes~* Duration of symptoms greater than 4 months~* Evaluated for these symptoms previously by at least 1 other doctor (General Practice, Family Practice, Internal Medicine, Neurology, ENT, Emergency Medicine, Pediatrics, PM\&R, Ophthalmology).~* Age \>14~* The patient (or their representative) must be able and willing to fill out extra paperwork~* All Patients to be seen by same Optometrist for all visits~* Must be willing to wear glasses.~* The patient (or their representative) must be able to sign informed consent~* Must have a driver for Follow Up visits where Control and Treatment Glasses are dispensed, and when Washout period is initiated~* Must have a driver for Follow Up visits where Control and Treatment Glasses are dispensed, and when Washout period is initiated~* Must have previous negative Neuroimaging (HCT or MRI) that was ordered to assess for headache and / or dizziness~Exclusion Criteria:~* Previous diagnosis of strabismus, vertical heterotropia, CN 3, 4 or 6 palsy, lazy eye~* Previous eye injury or eye operation (including RK and Lasik)~* Diagnosis of glaucoma~* Diagnosis of cataracts~* Diagnosis of proptosis~* Previous C-spine surgery / fusion~* Previous Rx contains prismatic correction~* \>18 PD of exophoria~* \> 4 PD of vertical heterophoria on Initial Exam

- Gender: ALL
- Minimum Age: 14 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Standard (Treatment) (Type: ACTIVE_COMPARATOR): None
- Placebo (control) (Type: SHAM_COMPARATOR): None

Based on this trial design, predict the completion outcome and termination type (if applicable).