The DMV suction cup method is considered essential in which scenario?

• A. A patient with cerebral palsy
• B. A healthy adult with good dexterity
• C. A patient with corneal infection
• D. A child with myopia

Answer: (A)

Handling a rigid gas-permeable lens can be tricky, especially when fine motor control is limited. The DMV suction cup method gives a secure grip on the lens center, allowing the wearer or clinician to lift, center, and place the lens without needing precise fingertip manipulation. This is particularly important for someone with cerebral palsy, where tremors, limited dexterity, or involuntary movements make conventional finger handling difficult or unsafe. The suction cup reduces the risk of dropping or twisting the lens and helps ensure proper orientation during insertion.

In other scenarios—such as a healthy adult with good dexterity, an active corneal infection, or a child who is just learning to handle lenses—the suction cup method isn’t essential. For a healthy person, fingers can typically manage a GP lens; during a corneal infection, lens wear is usually avoided; and while a child may benefit from assistance, the core need for a suction cup is most evident when dexterity is the limiting factor.