Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Eyeglass prescription wikipedia , lookup
Visual impairment wikipedia , lookup
Vision therapy wikipedia , lookup
Near-sightedness wikipedia , lookup
Idiopathic intracranial hypertension wikipedia , lookup
Mitochondrial optic neuropathies wikipedia , lookup
Blast-related ocular trauma wikipedia , lookup
Retinitis pigmentosa wikipedia , lookup
Dry eye syndrome wikipedia , lookup
Pupil Dilation Pupil dilation is the use of eye drops to produce a mydriasis (enlargement) of the pupil in order to enhance the examination of the inside structures of the eye. Dilation provides optimal conditions for viewing all of the internal structures of the eyes. It also enables the doctor to use the optimal instrumentation available to enhance viewing ability. Dilation is recommended as a baseline procedure on all new patients. Dilating the eyes before any symptoms occur enables the doctor to obtain baseline information of intraocular health for future comparison. Not dilating the eyes impairs the doctor's ability to recognize the potential for disease at its earliest stages, prior to the onset of symptoms (i.e. choroidal melanoma, lattice degeneration, early glaucoma, etc...). Diseases like these are often symptomless in their earliest stages and many diseases of the eye cannot be visualized without dilation. Absolute indications for dilation include: • • • • Recent or acute onset of flashing lights Recent or acute onset of floaters or "spots" Reduced visual acuity Complaint of reduced visual acuity (even though 20/20) Symptoms of transient blurring Peripheral visual field loss of any kind Symptoms of transient visual field loss Recent trauma to the head or eye Symptoms of intermittent blackouts Any media opacity which blocks adequate viewing of the retina High axial myopia (-3.00 or greater) Aphakia/pseudophakia Diabetes/diabetic retinopathy Unexplained eye pain or redness Recent loss or change in color vision Symptoms of metamorphopsia (wavy images in one eye) Evidence of glaucoma Retinal detachment (RD) risk factors (myopia, family history of RD, trauma, occupation, hobbies, etc...) Headache evaluation Iritis, uveitis Strabismus, amblyopia, nystagmus History of systemic disease which may affect the eye or optic nerve • Use of medications known to be neuro- or retino-toxic It is generally accepted that if any internal ocular health problem is suspected, pupillary dilation is necessary to perform an evaluation under optimal conditions. What is involved in pupillary dilation? • • • • • • Drops are placed into the eyes after a brief evaluation by the doctor. The drops take approximately 20-30 minutes to take full effect The eyes will become sensitive to bright lights for 4-6 hours. Sunglasses will be given to help reduce the light sensitivity. Vision will be blurred. Mostly at near and lasting for 2-6 hours. Distance vision is usually affected only mildly. Some patients have difficulty with a decrease in depth perception. This may affect driving. All patients who have never been dilated should bring a driver or have a driver available if needed. Some patients report increased problems with glare. The sunglasses given usually help, but driving can still be affected. Always have a driver available just in case.