1.0Best Eye Hospitalshttps://www.besteyehospitals.com/blogdreyehttps://www.besteyehospitals.com/blog/author/dreye/coma: Definition, Uses, and Clinical Overview - Best Eye Hospitalsrich600338<blockquote class="wp-embedded-content" data-secret="oObXbR1S8x"><a href="https://www.besteyehospitals.com/blog/coma-definition-uses-and-clinical-overview/">coma: Definition, Uses, and Clinical Overview</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.besteyehospitals.com/blog/coma-definition-uses-and-clinical-overview/embed/#?secret=oObXbR1S8x" width="600" height="338" title="“coma: Definition, Uses, and Clinical Overview” — Best Eye Hospitals" data-secret="oObXbR1S8x" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
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coma is a type of optical blur caused by an “off-center” focusing error in the eye. It is classified as a higher-order aberration, meaning it is different from simple nearsightedness, farsightedness, and astigmatism. coma is commonly discussed in refractive surgery planning, corneal disease evaluation, and advanced contact lens fitting. People may describe its visual effect as streaking, smearing, or “comet-like” tails around lights.