Certified Ophthalmic Assistant Practice Exam

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How can intraocular lenses be classified?

  1. By color and size

  2. By shape and weight

  3. By position and method of fixation

  4. By material and coating

The correct answer is: By position and method of fixation

Intraocular lenses can be classified by their position and method of fixation. The position refers to whether the lens is placed in the anterior chamber, posterior chamber, or sulcus. The method of fixation indicates how the lens is secured in place, such as if it is fixated to the iris, in the ciliary sulcus, or to the capsular bag. This classification system is important in ophthalmology as it helps in selecting the most appropriate type of intraocular lens for each individual patient's needs and eye anatomy. Options A, B, and D do not accurately represent the common classification system used for intraocular lenses.

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