The eyesight check is a basic and necessary examination which makes it possible to detect a number of eye diseases and conditions.
Our Ocular Canada stores provide professional eyesight checks for all customers. In our optical store in Lublin eyesight checks are performed by ophthalmologists and in our other optical stores by optometrists who specialize in helping customers to choose glasses and to fit contact lenses. Eyesight checks are performed in accordance with the guidelines developed by experts from the Polish Society of Optometry and Optics in accordance with international ophthalmological standards.
MAKE AN APPOINTMENT FOR AN EYE TEST
(81) 528 06 56,
601 299 241
(17) 777 18 23
792 990 555
(58) 76 14 885
THE EYESIGHT EXAMINATION INCLUDES:
computer-assisted examination of vision defects and corneal curvature (keratometry) using an autorefractometer
- subjective refraction
evaluation of vision defects based on a series of optometric tests in which the patient takes an active part by answering questions of an ophthalmologist/optometrist – this part of the examination is required for choosing suitable glasses, taking into account refraction and accommodation abnormalities, if any, and the quality of binocular vision
measurement of intraocular pressure using the non-contact AIR PUFF method, including the measurement of the corneal thickness (pachymetry) – this examination is essential for early detection of glaucoma and monitoring the effectiveness of its treatment
- examination of the anterior segment of the eye
assessment of eye structures such as: eyelids, conjunctiva, cornea, anterior chamber of the eyeball, iris, tear film – this examination is performed to fit contact lenses and to diagnose e.g. dry eye syndrome, various inflammatory conditions, pinguecula, pterygium and other conditions
- examination of the posterior segment of the eye
all funduscopies are performed by an ophthalmologist, after prior administration of pupil-dilating drops; e.g. the evaluation includes, among other things, intraocular lens, optic nerve head, retina and macula lutea
the examination makes it possible to diagnose eye diseases such as: cataract, glaucoma, macular degeneration (AMD), retinal detachment, as well as systemic diseases, e.g. diabetes, hypertension, atherosclerosis, multiple sclerosis, sarcoidosis and even leukaemia.
- contact lens fitting
assistance with selection of soft spherical, toric and multifocal contact lenses; customers are also instructed how to insert and remove their contact lenses and are advised on proper contact lens care.
STAGES OF THE VISIT:
STAGE 1 – MEDICAL HISTORY
Every eyesight examination at our optical store begins with an extensive interview and identification of problems experienced by the patient. The interview includes: personal data, visual requirements, i.e. profession, hobby, precision close-up work, work at a computer screen and the distance between the computer screen and the eyes, type and quality of lighting, car driving, etc., any previous eyesight correction, i.e. duration of vision problems, use of glasses, use of contact lenses, the latest refraction adjustment, ailments e.g. blurred distance vision and/or blurred close-up vision, eye burning, eye pain, double vision and medical history, including general medical history, currently administered drugs, medical treatments, diseases, as well as the family history of visual defects. All this information is required for an initial assessment of visual needs and possible causes of various conditions and visual discomfort.
STAGE 2 – SUBJECTIVE AND OBJECTIVE REFRACTION
In the second stage, the ophthalmologist/optometrist first measures refraction with an autorefractometer (this measurement is colloquially referred to as a computer-assisted examination) and then measures keratometry (corneal curvature) in order to obtain an initial assessment of eyesight defects. Next, he or she determines the power of eyeglass lenses to ensure the best visual acuity in each eye separately (monocular vision). Due to the fact that both eyes are involved in the vision process, the ophthalmologist/optometrist then proceeds to carry out binocular vision tests. He or she checks stereoscopic (spatial) vision, diagnoses amblyopia and suppression, assesses the performance of the eye muscles and diagnoses any strabismus disorders (overt strabismus and hidden strabismus).
The final part of the subjective refraction examination is the near vision test, carried out for all patients, especially for those over the age of 40. The doctor first establishes whether the patient needs supplementary lenses for close-up focusing (eyeglass lenses with a focal power enabling the patient to see clearly at a distance of about 40 cm). The scope of acute vision is also examined – an appropriate focal length is selected to ensure visual acuity at non-standard distances to address specific profession-related needs of the patient, e.g. an IT specialist working at a distance of 70 cm, a prosthetics specialist focusing his or her eyesight at a distance of 30 cm. After checking whether or not the patient needs additional lenses for near vision optical correction,
the doctor then assesses the state of accommodation: its efficiency, responsiveness and stability.
Each refraction examination ends with a measurement of intraocular pressure, as it is the primary cause of glaucoma.
Note! The computer-assisted eyesight examination is an initial, screening examination – we do not produce glasses on its basis
STAGE 3 – EXAMINATION OF THE ANTERIOR SEGMENT OF THE EYE
During the third stage of the examination, each patient, especially patients who wear or wish to wear contact lenses, undergoes an assessment of eye structures such as: eyelids, conjunctiva, cornea and iris, as well as tear film evaluation.
This makes it possible to detect changes caused by e.g. incorrect or too long wearing of contact lenses, long work in artificial light as well as various types of infections requiring further treatment, i.e. inflammation of: conjunctiva, eyelid margins, iris, cornea.
The above-mentioned parameters are an essential component of the refraction assessment. Patients visiting the doctor’s office to obtain glasses for correcting blurry vision may often leave the doctor’s office with quite different recommendations than only a change of corrective glasses.
For patients requiring new contact lenses, the third stage additionally includes a contact lens fit check.
The follow-up visit usually takes place 30 days after the insertion of the first lenses and includes
assessment of visual acuity, condition of the eye with the contact lens in place and after it is removed.
Patients undergoing a funduscopy as an extension of stage 3 are administered accommodation-paralysing drops to dilate their eye pupils. In addition, the ophthalmologist evaluates the intraocular lens, retina, optic nerve head and the macula lutea in order to diagnose any pathological changes, e.g. cataracts, glaucoma, AMD.
STAGE-4 VERIFICATION OF OBTAINED RESULTS
Once all the above-mentioned procedures have been carried out, the focal length (power) of the selected glass lenses is verified, using a phoropter in more natural conditions. The patient puts on a test frame with the selected corrective eyeglass lenses to check if they are comfortable and provide the required vision quality. If the patient has no objections and is satisfied with the quality of vision, the doctor will issue a prescription specifying:
-the focal power of the glass lenses
-the optimal type of correction – taking into account visual needs
-additional recommendations, e.g. based on the assessment of the anterior segment of the eye.
In the case of newly selected contact lenses, the prescription is issued during the follow-up visit. The prescription specifies:
-powers, type and parameters of contact lenses
-use and replacement instructions
-the date of the next follow-up visit
INSTRUCTIONS AND RECOMMENDATIONS
Preparation for an examination:
Before coming for an ophthalmological or optometric examination, please remember:
- to take with you the results of previous ophthalmological examinations, if any,
- to take your currently used glasses (including those that you rarely or never wear),
- if you use contact lenses, please remove them at least 30 minutes before the examination,
- if you obtain contact lenses for the first time, please remove make-up, because falling particles of make-up will make it difficult for the doctor to examine your eyes and to provide you with contact lens insertion and removal instructions,
Examination involving the use of accommodation-paralysing drops
An evaluation of the posterior segment of the eye requires the use of accommodation-paralysing drops. After their application, you may experience visual disturbances and photophobia. In such cases, do not drive or operate devices/machines until the symptoms subside, up to 6 hours after application of the drops.
Examination with a biomicroscope (slit lamp)
The examination of the anterior and posterior segment of the eye and the fitting of contact lenses is carried out using a biomicroscope. During this examination, various techniques and types of lighting are used in order to examine the eye structures at high magnification. Strong light directed at the eye during the examination may result in a temporary visual disturbance (the so-called glare effect), which subsides after a few minutes.
Intraocular pressure examination
The pressure measurement is performed using the non-contact method (air-puff), i.e. the device does not touch the eye, therefore there is no need to anesthetize it. During the measurement, a light puff of air is blown into the eyes, which may surprise the patient. In spite of this, it is the most comfortable and painless eye test.
Out of concern for the patient’s well-being, an ophthalmologist/optometrist may order additional tests before issuing a prescription for glasses or contact lenses, such as: corneal topographies, OCT, visual field tests, eyeball ultrasound. These additional examinations are not performed in our practices. Based on the analysis of the vision system, our specialists may also recommend vision therapies – visual exercises.
We look forward to seeing you at our optical stores.