|Year : 2022 | Volume
| Issue : 3 | Page : 857
Blue illusions on slit-lamp microscopy through yellow intraocular lens explained
Amber A Bhayana, Antriksh Wahi, Sudarshan K Khokhar, Priyanka Prasad, Pradeep Venkatesh
Department of Ophthalmology, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, AIIMS, New Delhi, India
|Date of Web Publication||16-Jul-2022|
Dr. Amber A Bhayana
Dr. R P Centre, AIIMS, New Delhi - 110 029
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Bhayana AA, Wahi A, Khokhar SK, Prasad P, Venkatesh P. Blue illusions on slit-lamp microscopy through yellow intraocular lens explained. Indian J Ophthalmol Case Rep 2022;2:857
|How to cite this URL:|
Bhayana AA, Wahi A, Khokhar SK, Prasad P, Venkatesh P. Blue illusions on slit-lamp microscopy through yellow intraocular lens explained. Indian J Ophthalmol Case Rep [serial online] 2022 [cited 2022 Aug 11];2:857. Available from: https://www.ijoreports.in/text.asp?2022/2/3/857/351151
Blue/violet illusional slits are often visualized during slit-lamp examination of a pseudophakic patient with hydrophobic acrylic yellow intraocular lens in situ [Figure 1]a. The reason for this appearance is selective reflection of lower wavelength blue light by the yellow intra-ocular lens (IOL). We support the hypothesis based on the fact that blue reflection is similarly seen when white light is shone across blue filtering glasses [Figure 1]b.
|Figure 1: (a) Oblique slit-lamp illumination showing yellow IOL in situ with illusional blue slits (arrow); (b) light from indirect ophthalmoscopy shone across blue filtering glasses – blue light reflected back (arrow)|
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| References|| |
Yang H, Afshari NA. The yellow intraocular lens and the natural ageing lens. Curr Opin Ophthalmol 2014;25:40-3.