Please assess the completion status of the following clinical trial:

Trial Title: Measurement of High Order Aberrations in Late Stages Keratoconus

Study Design Characteristics:
- Allocation: NON_RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: DIAGNOSTIC
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* to be able to understand an information and give a consent~* patients over 18~* patients with keratoconus~* affiliated to medical insurance.~Exclusion Criteria:~* non keratoconus patients~* patients under 18~* pregnant women or nursing mothers~* ocular surgery 90 days before inclusion~* ocular infection~* keratitis~* restless patients

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Group 1 (Type: ACTIVE_COMPARATOR): Measurement of aberrations in patients with keratoconus of grade 1
- Group 2 (Type: ACTIVE_COMPARATOR): patients with keratoconus of grade 2
- Group 3 (Type: EXPERIMENTAL): patients with keratoconus of grade 3
- Group 4 (Type: EXPERIMENTAL): patients with keratoconus of grade 4

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