The Hudson-Stahli line II: A comparison of properties in eyes with and without long-term contact lens wear


The eyes of 98 long-term contact lens wearers and 342 subjects not wearing contact lenses were examined for the presence of Hudson-Stahli lines, using slit-lamp biomicroscopy. The period of contact lens wear ranged from 2 to 25 years, all subjects using contact lenses for refractive reasons only. The incidence of Hudson-Stahli lines in contact lens wearers was not significantly different from that of control subjects in the same decades. Contact lenses appear, however, variably to alter the characteristics of the Hudson-Stahli line. Results from a group of 4 unilateral lens wearers, from 94 bilateral lens wearers and from studies of the morphology of the line suggest that contact lens wear is associated with a relative reduction of length and density of the line and also with a broadening and, more rarely, displacement of it. In eyes with brown or green irides, the attenuation of length and density by contact lens wear obscures the normal increases seen with age; in this subgroup of contact lens wearers, both factors appear to be almost constant from the third to sixth decades of life.


  1. 1

    Norn MS . Hudson-Stahli's line of cornea. II. Aetiological studies. Acta Ophthalmol 1968; 46: 119–28.

    CAS  Article  Google Scholar 

  2. 2

    Barraquer-Somers E, Chan CC, Green WR . Corneal epithelial iron deposition. Ophthalmology 1983; 90: 729–34.

    CAS  Article  Google Scholar 

  3. 3

    Gass JD . The iron lines of the superficial cornea. Hudson-Stahli line, Stocker's line and Fleischer's ring. Arch Ophthalmol 1964; 71: 348–58.

    CAS  Article  Google Scholar 

  4. 4

    Rose GE, Lavin MJ . The Hudson-Stahli line I. An Epidemiological Study. Eye 1987 (In Press).

  5. 5

    Rose GE, Lavin MJ . The Hudson-Stahli line III. Observations on Morphology, a Critical Review of Ætiology and a Unified theory for the Formation of Iron lines of the Corneal Epithelium. Eye 1987 (In Press).

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Correspondence to Geoffrey E Rose.

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Presented in part at VIIth Meeting of Moorfields Alumni, 1987.

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Rose, G., Lavin, M. The Hudson-Stahli line II: A comparison of properties in eyes with and without long-term contact lens wear. Eye 1, 471–474 (1987).

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