Task: Answer Verification
Input (English): Question: Does the Boston keratoprosthesis provide a wide depth of focus?
Answer: The KPro's wide depth-of-focus makes the visual acuity less dependent on an exact refractive correction at distance and explains the 'pseudoaccomodation' experienced by these patients. This is primarily due to the small pupil diameter of the KPro. The current manufacturing steps in 0.50 dioptre increments appears to be sufficient.
Output (English): yes