Which visual symptoms may develop following laser peripheral iridotomy (LPI)?

Updated: Jun 15, 2020
  • Author: Frank X Cao, MD; Chief Editor: C Stephen Foster, MD, FACS, FACR, FAAO, FARVO  more...
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Answer

Answer

Different visual symptoms can present after LPI. Transient blurred vision may occur in the immediate postlaser period. Possible causes include pigment dispersion, inflammation, and retained methylcellulose from contact lens placement. [13]

One study found that optical aberrations (eg, shadows, ghost images, lines, haloes, spots, glare, diplopia, and spots) were reported in 9% of eyes with completely covered iridotomies, 26% of those with partially covered iridotomies, and 17.5% of those with fully exposed iridotomies. [17] The authors concluded that a fully covered iridotomy is less prone to visual disturbances than a fully exposed or partially covered iridotomy. [17] One randomized study found that the location of the LPI (superior vs nasal/temporal) does not affect the likelihood of postoperative visual symptoms. [18] Six-month follow-up of these patients revealed that these visual symptoms frequently resolve over time. [19]


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