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Hard contact lens corrections in aphakia.

H H Boyd

    Ophthalmology
    |March 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Hard contact lenses, particularly single-cut designs, offer effective aphakic vision correction. Continuous wear may be crucial for success in older aphakic patients, though intraocular lenses are reducing this need.

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    Area of Science:

    • Ophthalmology
    • Optometry
    • Contact Lens Science

    Background:

    • Aphakia, the absence of the eye's natural lens, presents significant visual challenges.
    • Traditional correction methods for aphakia have limitations.
    • The development of specialized contact lenses aims to restore functional vision.

    Purpose of the Study:

    • To evaluate the efficacy of hard contact lenses for aphakic vision correction.
    • To outline indications for specific hard contact lens designs.
    • To discuss the role of continuous wear in aphakic contact lens success.

    Main Methods:

    • Clinical trial lens fitting for hard contact lenses.
    • Assessment of single-cut lens designs and lenticular designs.
    • Evaluation of continuous wear protocols in aphakic patients over 70.

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    Main Results:

    • Single-cut hard contact lenses are recommended for aphakic correction via trial fitting.
    • Lenticular designs may be required for optimal outcomes.
    • Continuous wear over age 70 is necessary for success in over 30% of cases.
    • Soft lenses are generally impractical for aphakia.

    Conclusions:

    • Hard contact lenses remain a viable option for aphakic vision correction.
    • Specific lens designs and wear schedules are critical for successful management.
    • The increasing prevalence of intraocular lenses is impacting the demand for aphakic contact lenses.