Zhang Lyvia J, Traish Aisha S, Dohlman Thomas H
Cornea Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA.
Cornea Service, Boston Children's Hospital, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA.
Am J Ophthalmol Case Rep. 2023 Jul 22;32:101900. doi: 10.1016/j.ajoc.2023.101900. eCollection 2023 Dec.
To report a pediatric patient with bilateral temporal keratoconus.
A 14-year-old male presented with a two-year history of progressively worsening visual acuity in both eyes and suspicion for undiagnosed amblyopia in the right eye. Retinoscopy revealed a scissoring reflex in both eyes and corneal topography demonstrated high keratometry values (Kmax 57.9 D and 46.1 D in the right and left eyes, respectively), with relative temporal steepening approximately coinciding with the thinnest pachymetry in both eyes. Corneal cross-linking was recommended.
Keratoconus can present as a temporal variant with relative temporal steepening and thinning. It is important to maintain a high index of suspicion for keratoconus in pediatric patients with sub-normal visual acuities. Prompt assessment and diagnosis may prevent progression of keratoconus and development of amblyopia.
报告一例双侧颞侧圆锥角膜的儿科患者。
一名14岁男性,双眼视力进行性下降两年,右眼疑似存在未确诊的弱视。检影显示双眼有剪动反射,角膜地形图显示角膜曲率计值较高(右眼和左眼的最大角膜曲率分别为57.9 D和46.1 D),相对颞侧陡峭程度大致与双眼最薄的角膜厚度测量值一致。建议进行角膜交联术。
圆锥角膜可表现为相对颞侧陡峭和变薄的颞侧变异型。对于视力低于正常的儿科患者,高度怀疑圆锥角膜很重要。及时评估和诊断可预防圆锥角膜进展和弱视的发生。