Straylight due to intraocular lens opacification in a patient with asteroid hyalosis

• Main Authors: Johanna M. Vlasman, Thomas J.T.P. van den Berg, Nicolaas J. Reus
• Format: Article
• Language: English
• Published: Elsevier 2020-09-01
• Series: American Journal of Ophthalmology Case Reports
• Subjects: Straylight; Glare; C-Quant; Intraocular lens calcification; Asteroid hyalosis; Nd:YAG laser
• Online Access: http://www.sciencedirect.com/science/article/pii/S2451993620301729

Purpose: To report a rare case of intraocular lens (IOL) calcification in the presence of asteroid hyalosis with in-vivo measurements of straylight before and after treatment. Observations: A patient with asteroid hyalosis presented with complaints of disability glare due to calcifications on the posterior surface of the IOL. Straylight, measured with the C-Quant, was 8.2x elevated compared to normal (log(s) 2.08). Dissolution of the posterior face IOL deposits was performed with a neodymium-doped yttrium aluminum garnet (Nd:YAG) laser, resulting in a significant decrease in straylight (log(s) 1.76), congruent with the patient's subjective improvement. Conclusions and importance: To the best of our knowledge, this is the first report describing a patient with an opacified IOL due to asteroid hyalosis with in-vivo measurements of straylight before and after treatment. It illustrates that awareness of glare complaints in patients with an opacified IOL is important, documentation with C-Quant measurements may be helpful in indicating treatment, evaluating the treatment, and following up the patient, and treatment with a Nd:YAG laser may dissolve the opacifications to a clinically satisfactory level.