A patient history helps to determine any symptoms the individual is experiencing, when they began, the presence of any general health problems, medications taken and occupational or environmental conditions that may be affecting vision. The doctor will ask about any eye or vision problems you may be having and about your overall health.
Visual acuity measurements evaluate how clearly each eye is seeing. As part of the testing, you are asked to read letters on distance and near reading charts. The results of this testing are written as a fraction with 20/20 being normal distance visual acuity.
Preliminary testing may include evaluation of specific aspects of visual function and eye health such as depth perception, color vision, eye muscle movements, peripheral or side vision, and the way your pupils respond to light.
This test measures the curvature of the cornea, the clear outer surface of the eye, by focusing a circle of light on the cornea and measuring its reflection. This measurement is particularly critical in determining the proper fit for contact lenses.
Refraction is conducted to determine the appropriate lens power needed to compensate for any refractive error (nearsightedness, farsightedness, or astigmatism). The doctor will use an automated instrument to automatically evaluate the focusing power of the eye. The power is then refined by patient's responses to determine the lenses that allow the clearest, sharpest vision possible.
Eye Focusing, Eye Teaming, and Eye Movement Testing
Assessment of accommodation, ocular motility and binocular vision determines how well the eyes focus, move and work together. In order to obtain a clear, single image of what is being viewed, the eyes must effectively change focus, move and work in unison. This testing will look for problems that keep your eyes from focusing effectively.
Eye Health Evaluation
External examination of the eye includes evaluation of the cornea, eyelids, conjunctiva and surrounding eye tissue using a biomicroscope.
Evaluation of the lens, retina and posterior section of the eye may be done through a dilated pupil or dilated retinal scanning to provide a better view of the internal structures of the eye.
The Nikon California Optomap digital retinal imaging device captures
more than 80% of your retina in one image. Traditional methods typically
reveal only 10-45% of your retina at one time. The unique optomap
ultra-widefield view enhances your eye doctor's ability to detect even the
earliest sign of disease that appears on your retina. Seeing most of the retina
at once allows your eye doctor more time to review your images and educate
you about you eye health.
Measurement of this fluid pressure within the eye (tonometry) is performed.
These measurements help to determine the risk of developing glaucoma.
Additional testing may be needed based on the results of the previous tests
to confirm or rule out possible problems, to clarify uncertain findings, or to
provide a more in-depth assessment.
At the completion of the examination, your doctor will assess and evaluate
the results of the testing to determine a diagnosis and develop a treatment plan.
He will discuss with you the nature of any visual or eye health problems found
and explain available treatment options.
If you have questions regarding any eye or vision conditions diagnosed, or treatment recommended, don't hesitate to ask for additional information or explanation from your doctor.