Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv für klinische und experimentelle Ophthalmologie
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Graefes Arch. Clin. Exp. Ophthalmol. · Aug 2011
Biomechanical property analysis after corneal collagen cross-linking in relation to ultraviolet A irradiation time.
To study the biomechanical effect of riboflavin-ultraviolet A irradiation (UVA)-induced collagen cross-linking (CXL) in porcine corneas using two different exposure times of 30 and 60 min. ⋯ The application of 30-min UVA CXL treatment with riboflavin increased stiffness of the porcine corneal tissue. A 60-min UVA-radiated tissue presents lower stiffness than the 30-min treated tissue, showing a similar biomechanical behavior than the untreated corneas. A prolongation of the UVA irradiation time may cause structural weakening of the porcine corneas.
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Graefes Arch. Clin. Exp. Ophthalmol. · Aug 2011
Ocular surface squamous neoplasia in xeroderma pigmentosum: clinical spectrum and outcome.
To study the clinical spectrum and therapeutic outcome of ocular surface squamous neoplasia (OSSN) in patients with xeroderma pigmentosa (XP). ⋯ OSSN occurs predominantly in the elderly, but in patients of XP it tends to occur at a younger age (6-22 years). The disease appeared to be more aggressive (recurrence rate = 64.3%) than usual. Awareness and prompt management with close follow up is warranted in these patients.