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| OPHTHALMIC IMAGE |
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| Year : 2022 | Volume
: 2
| Issue : 3 | Page : 857 |
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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 |
Correspondence Address:
Dr. Amber A Bhayana
Dr. R P Centre, AIIMS, New Delhi - 110 029
India
 Source of Support: None, Conflict of Interest: None
DOI: 10.4103/ijo.IJO_2762_21
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 13];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).[1] 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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Financial support and sponsorship
Nil.
Conflicts of interest
There are no conflicts of interest.
| References | |  |
| 1. | Yang H, Afshari NA. The yellow intraocular lens and the natural ageing lens. Curr Opin Ophthalmol 2014;25:40-3.  |
[Figure 1]
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