Dilating eyedrops can keep eyes dilated for up to several hours, according to the American Academy of Ophthalmology. The time varies depending on the individual, their eye color and the number of drops administered.Know More
Dilating eyedrops are used to help improve the efficacy of an eye exam by allowing the doctor to examine the eye structures, including the retina and the optic nerve, notes About.com.
People with light-colored eyes can expect to dilate faster because they are more sensitive to the eyedrops. Since the effects of dilated eyes include blurry vision and sensitivity to light, doctors encourage dilated patients to temporarily wear sunglasses to reduce glare.Learn more about Vision
Several medical conditions result in retinal swelling, but one of the most common causes is a damaged vein in the retina, according to the American Academy of Ophthalmology. Doctors at Retina Associates claim that most patients who undergo treatment for this condition experience vision improvements.Full Answer >
If left untreated, the clouding lens symptom caused by cataracts completely impairs vision, according to the American Academy of Ophthalmology. Worldwide, cataracts are responsible for about 51 percent of all blindness, the World Health Organization states. Cataracts most typically develop as part of the aging process.Full Answer >
Benign eye floaters don't usually require medical treatment or intervention; if eye floaters are bothersome, moving the eyes can shift them out of the field of vision. Eye disease and injury and diabetic retinopathy sometimes cause eye floaters, although WebMD notes that serious eye disorders are sometimes also associated with floaters, including eye tumors and vitreous hemorrhage, among others. When eye floaters affect vision, a surgical procedure may be necessary to remove the floating debris causing the eye floaters, replacing it with a solution of salt.Full Answer >
Dryness, excessive sunlight, allergies, coughing, dust and infection are common causes for bloodshot eyes. These irritants induce swelling of the vessels in the white portion of the eyes.Full Answer >