Eye Exams

General Eye Examination

A thorough eye examination consists of a variety of standard tests designed to measure visual acuity and other vision faculties, as well as observe the health of the eye and check for common eye diseases.  There is no pain or discomfort associated with an exam, and they typically take less than an hour.

General eye exams can diagnose a variety of eye conditions early on and are the best way to preserve good vision.  For children, strabismus (crossed eye) and amblyopia (lazy eye) can often be diagnosed and treated in early childhood, avoiding life-long vision impairment.  Also, rare eye conditions from birth (like congenital cataracts) can be diagnosed and treated.  For all ages, refraction tests can determine whether prescription eyewear would be beneficial, and what power is necessary.  Furthermore, many debilitating eye diseases can be diagnosed before noticeable symptoms occur, potentially making the difference between minor damage and major vision loss.

 

Eye exams are recommended regularly throughout all phases of one’s life.  In the first three years, infants should have their vision checked as part of regular pediatric checkups.  Between age three and six, an eye exam every year or two is recommended.  Throughout childhood and the teenage years, exams should be scheduled as necessary.  Adults should have at least one exam in their twenties, at least two in their thirties, and an exam every two to four years after that.  Exams are recommended for seniors every one to two years.  People with diabetes should have at least one exam per year.  Exams are also more frequent for patients monitoring a diagnosed eye condition, or with a hereditary predisposition to an eye disease.

 

Common tests and evaluations during an eye exam include:

  • Introductory interview:  The doctor will ask basic questions about a patient’s medical history and eye health history.

  • External examination:  The doctor inspects all outward visible parts of the eye and surrounding tissue.

  • Pupil inspection:  The patient’s pupils will be inspected for equal size and regular shape.  Then the doctor tests how they react to light and objects at various distances.

  • Eye muscle health and mobility:  Eye movement is checked in six directions (corresponding to the six extraocular muscles), as well as tracking a moving object (such as a pen).

  • Visual field:  The patient covers one eye at a time, and with the other eye gazing straight ahead, identifies objects in peripheral vision (often simply the number of fingers the doctor is showing.)

  • Visual acuity:  A common means of measuring visual acuity is the Snellen chart.  This is a large card or projection with progressively smaller horizontal lines of random block letters.  The test determines how well a patient can discern detail at a given distance.  Patients taking this test will cover one eye and then read aloud the letters of each row, starting from the top.  The smallest row that can be accurately read indicates the patient’s visual acuity in that eye.

  • Refraction:  This test is used to find the best corrected vision, if necessary for prescription eyewear or contacts.  The doctor will try various lenses in front of each eye, as the patient focuses on a chart at a distance or up-close, to help determine the best power of correction.

  • Color vision:  The doctor shows the patient a series of images with symbols embedded in color dots or patterns.  Based upon the patient’s ability to identify the symbols, certain types of colorblindness can be diagnosed or ruled out.

  • Ophthalmoscopy:  This test is often done with an ophthalmoscope, a handheld instrument with light and magnifying lenses.  Alternatively, the doctor may use other means, such as a slit lamp, which affords a more three-dimensional view.  Ophthalmoscopy aims to inspect the retina and surrounding internal eye.  This test can help diagnose problems with the retina or detachment of the retina, and monitor diseases like glaucoma and diabetes.  An opacity in the eye can indicate a cataract.  Sometimes the doctor will dilate the pupils with eye drops, to gain a wider view of the internal eye.

  • Tonometry:  This test measures intraocular pressure, which can be a sign of glaucoma if pressure is abnormally high.  Internal eye pressure is measured either with a puff of air at the cornea or brief direct contact with the cornea, to measure how easily it is pushed inward.

 

Contact us today to schedule an eye examination appointment!

 

LASIK Eligibility Evaluation

Do you suffer from nearsightedness, farsightedness, or astigmatism?  Do you find glasses or contacts cumbersome or uncomfortable, and wish you could reduce their prescription or discard them?

 

If you answered “YES” to either of these questions, you may be a good candidate for LASIK or other vision corrective surgery.  Before the decision can be made however, you must have an eligibility exam and consultation.  The doctor will ask questions about your medical history and give a thorough eye exam designed to determine if the procedure is appropriate for your individual case.  The doctor will also talk about the benefits, risks, available options, and preparation and recovery associated with the surgery to ensure that your goals and expectations are realistic.

 

Contact us today to schedule a consultation!

 

Contact Lens Fitting and Training Information

1. The patient has to come in for a full exam with Refraction to determine the glasses prescription and get cleared to be able to wear Conacts

2. They return for the first time CL fitting where we (The Optometrist) choose the initial lens to use based on the full exam data.  We put the lenses on first so we can take an initial look at vision and fit of the contacts.

3. Once we're able to put the lenses on and take an initial look we do a training so they can learn to put the lenses in and take them out.  If they're able to do so proficiently at that time, we go over the care and wear schedule of the lenses.  We then give the patient the trial lenses to wear for about a week or so, so they can see how they would work in their normal life/wear time.

If they can't do it proficiently and safely, we have them return for further training sessions until they can get it in themselves.  Some patient ask to take the lenses home to practice on their own but unfortunately this is not an option.

4. The patient must then come back in a week or so for a CL check with the lenses in.  It is also required that the lenses be worn for 2-4 hours before the appointment.  At the CL check, they tell us how the lenses went, we check the fit again after the lenses have been on the eyes for a couple hours and fine tune the prescription.  If everything checks out, then we finalize the CL Rx and they can go ahead and order the lenses from our Optical Department or the supplier of their choice.

If something with the fit, comfort or the vision of the lenses isn't working properly, then we make other changes and have them come back for further follow-ups until we can get the proper lens for vision, comfort and fit before we finalize. 

 

A Few Things To Keep In Mind:

  • Contact Lens prescriptions are for a specific brand, curvature, and power which is why patients have to come in physically.  

  • Contact Lenses and glasses prescriptions are/can be different in power.  They don't translate exactly across.



So all in all, at minimum the patient will be coming in 3 times including the initial full exam for the full process.  Depending on how the training goes (which is patient dependent) and the checks go, there can be many more appointments if needed.

If you are interested in getting fitted for contacts contact us today.  One of our schedulers will gladly find an appointment that fits your schedule.  Wee look forward to seeing you.

 

Peninsula Eye Physicians

101 So San Mateo Dr. Ste. 310

San Mateo, Ca 94401

For Life-Threatening Emergencies Call 911
  • Facebook Basic Black
  • Black Instagram Icon

© 2017 Peninsula Eye Physicians