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Bilateral optic nerve hypoplasia with normal visual acuity

A Björk, C G Laurell, U Laurell

    American Journal of Ophthalmology
    |October 1, 1978
    PubMed
    Summary
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    Bilateral optic nerve hypoplasia can occur in men of various ages. Despite normal vision, significant inferior visual field defects may be present.

    Area of Science:

    • Ophthalmology
    • Neuro-ophthalmology
    • Developmental biology

    Background:

    • Optic nerve hypoplasia (ONH) is a congenital condition.
    • It results from incomplete development of the optic nerve during gestation.
    • ONH can affect visual acuity, visual fields, and ocular motility.

    Observation:

    • Three male patients aged 26, 19, and 55 years presented with bilateral optic nerve hypoplasia.
    • All patients reported normal visual acuity.
    • Detailed visual field testing revealed significant defects.

    Findings:

    • The primary finding was the presence of considerable defects in the inferior segments of the visual fields in all affected individuals.
    • This suggests a specific pattern of visual field loss associated with bilateral ONH.

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  • The discrepancy between normal visual acuity and visual field deficits highlights the importance of comprehensive eye examinations.

    • Implications:

    • These findings underscore the variability in clinical presentation of optic nerve hypoplasia.
    • Early diagnosis and regular monitoring are crucial for managing potential visual field impairments.
    • Further research may elucidate the specific developmental mechanisms leading to inferior visual field defects in ONH.