Four to six hours. Darker eyes tend to stay dilated longer than light eyes.
They might be. The doctor will discuss this with you if it is needed or recommended. As long as the doctor does not feel it is urgent to dilate them the day of the exam, it can be rescheduled for a different day. We almost never have to dilate just to get the glasses prescription.
We will test how well you see with and without correction, as well as obtain the optimum prescription for both distance and near vision. We will make sure both eyes work well together, and that all the muscles controlling the eyes work properly. The eyes’ pressure will be checked, pupil reactions assessed, and the doctor will take a very careful [...]
Check your blood sugar. This is nature’s way of letting you know it is elevated.
Symptoms range from simple blur to a central blind spot. Patients who have the wet form will note they can try to look at a person’s face but the head will be missing, although they can see their shoulders and the rest of the body, as well as the environment around them. Also, when looking at a grid pattern they [...]
Open angle glaucoma, the most common type, is painless. The patient is usually symptom-free until the disease is advanced, when they notice portions of their visual field missing. Angle closure glaucoma, which is much rarer, can cause sudden severe pain to the point of nausea and vomiting.
Usually simple blur. Some patients describe the vision as “like looking through a film,” and that colors appear duller and washed-out. Often patients also complain of halos and glare intolerance at night.
Flashes of light in one eye often accompanied by a sudden increase in floaters and a slowly enlarging wavy/distorted area of the field of vision. In some patients an area of their visual field appears as a dark shadow instead of waviness.
Seek care immediately. If you are diabetic or hypertensive, the likely problem is a (usually temporary) nerve palsy affecting the extraocular muscles, and temporary prism correction in glasses or patching one eye will relieve the symptom. Keep in mind, however, that serious neurological problems can cause this also.
Keep the head tilted back – never forward as gravity will work to drain the intraocular fluid. Do not put any pressure on the eye. Ideally you would like to gently tape a small cup, like a Dixie cup, over the eye. If the object is protruding from the eye (like a nail), do not attempt to remove it. Go [...]