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    Potential acuity meter

    PAM

    A potential acuity meter is an instrument used to examine the eyes. Your health care provider can use this tool to predict how well you may see after eye surgery. People who have reduced vision due to cataracts may also have other reasons for poor vision. The potential acuity meter will help predict what their vision will be after the cataracts are removed. If cataracts are severe, the instrument may not give useful information.

    Open References

    References

    Lundström M. Outcomes of cataract surgery. In: Yanoff M, Duker JS, eds. Ophthalmology. 6th ed. Philadelphia, PA: Elsevier; 2023:chap 5.21.

    Stein HA, Stein R, AlShaker SM. Preliminary examination. In: Stein HA, Stein RM, Freeman MI, Stein RL, eds. The Ophthalmic Assistant. 11th ed. Philadelphia, PA: Elsevier; 2023:chap 8.

      • Normal vision

        Normal vision - illustration

        Normal vision occurs when light is focused directly on the retina rather than in front or behind it.

        Normal vision

        illustration

        • Normal vision

          Normal vision - illustration

          Normal vision occurs when light is focused directly on the retina rather than in front or behind it.

          Normal vision

          illustration

        Review Date: 11/8/2023

        Reviewed By: Franklin W. Lusby, MD, Ophthalmologist, Lusby Vision Institute, La Jolla, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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