With either the EyeQue Personal Vision Tracker or VisionCheck, you are tracking your refractive error. Refractive errors occur when the eye cannot focus images clearly onto the retina (the back of the eye), resulting in blurry vision. You may know this as nearsightedness (myopia), farsightedness (hyperopia), or astigmatism. This is usually due to the shape and/or length of the eye, but can also be caused by cataracts, disease, medication, pregnancy, hormone fluctuations, or other factors. The EyeQue devices can track how your refractive error might change over time. However, the EyeQue vision tests do not provide any other information on eye health or conditions such as glaucoma, cataracts, optic nerve damage, diabetic retinopathy, macular degeneration, or other eye conditions. We recommend that you seek a comprehensive vision and eye health examination with an optometrist or ophthalmologist every 2 years if you’re under the age of 60, and every year if you’re 60 or older in order to screen for and prevent eye diseases, many of which have no symptoms. EyeQue devices are intended to be an adjunct to these exams and could even help provide useful information to your eyecare professional.