Higher-order aberrations (HOAs) are complex vision distortions caused by irregularities in the eye’s optical system. Unlike lower-order aberrations like nearsightedness or astigmatism, HOAs affect night vision, contrast sensitivity, and image clarity. They result from imperfections in the cornea or lens and are detectable through wavefront technology. Common symptoms include halos, glare, and difficulty seeing in low light. Advanced treatments like custom LASIK or specialized contact lenses can help manage HOAs effectively.
Higher-order aberrations (HOAs) occur due to irregularities in the cornea, lens, or tear film. Causes include refractive surgeries like LASIK, which can alter corneal shape and induce aberrations. Other factors include corneal scars, cataracts, dry eye, and natural imperfections. These issues lead to visual distortions like halos, glare, and poor night vision.
Symptoms of higher-order aberrations (HOAs) can include visual distortions like halos, glare, and starbursts, especially in dim lighting. Some individuals experience double vision, blurred vision, or reduced contrast sensitivity, making it harder to focus on fine details. These symptoms can interfere with everyday tasks like reading or driving at night.
Treatment for higher-order aberrations (HOAs) depends on the cause. Options include specialized contact lenses, wavefront-guided LASIK, or PRK to reshape the cornea. Eye drops and artificial tears help manage dry eye-related HOAs, while cataract surgery can address lens irregularities. Corneal cross-linking may be recommended for keratoconus-related HOAs.
Cataract surgery can help reduce higher-order aberrations (HOAs) by replacing the clouded lens with an artificial intraocular lens (IOL). Advanced IOL options, such as aspheric or wavefront-guided lenses, can minimize visual distortions like halos and glare. Precise surgical techniques improve image clarity, especially in low-light conditions.
