Biomedical subjects
J R Weatherill
Publications and source records attributed to J R Weatherill.
Do intraocular lenses with ultraviolet absorbing chromophores protect against macular oedema?
In a prospective study, designed to test the effect of intraocular lenses containing an ultraviolet absorbing chromophore on the incidence of post-operative cystoid macular oedema, 55 patients undergoing extracapsular cataract extraction were randomly allocated to receive intraocular lenses with or without an ultra-violet absorbing chromophore. Post-operative fluorescein angiography showed no difference in the incidence of macular oedema in those patients receiving an intraocular lens with an ultraviolet absorbing chromophore compared with patients receiving a standard posterior chamber intraocular lens.
Contrast sensitivity and pattern ERG in Waldenstrom's macroglobulinaemia.
Patients with Waldenstrom's macroglobulinaemia (WM) and age matched controls have been examined using tests of contrast sensitivity and pattern electroretinography. The patients with WM were in remission on maintenance treatment and had only moderately elevated plasma viscosity. They showed evidence of abnormal contrast sensitivity but there was no significant difference in amplitude of the pattern ERG between patients and controls.
Visual performance in pseudophakia with standard and ultraviolet-absorbing intraocular lenses: a preliminary report.
There is currently considerably interest in the vulnerability of the pseudophakic eye ultraviolet light. Contrast sensitivity was measured in patients receiving UV-absorbing and standard posterior chamber intraocular lenses (IOLs) and in normal age-matched observers. The results suggest that in the relative short-term there is no difference in visual performance with either type of IOL. Modulation Transfer Function studies on 3 batches of IOLs (2 standard and 1 UV-absorbing) showed slight variations in optical performance within and between batches. Spectral sensitivity testing demonstrated increased macular protection from short wave-length blue light by the crystalline lens when compared with both types of IOL.
Familial hypoplasia of the iris stroma associated with glaucoma.
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Gonioscopy and tonography in glaucomatocyclitic crises.
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