Specialized Eye Examinations
(Determining glasses prescription, assessing distance and near vision, diagnosing color blindness)
Introduction
The eye is one of the most sensitive and complex organs of the body, and its health directly impacts an individual’s quality of life. Regular eye examinations not only help in identifying vision problems but can also indicate some systemic diseases such as diabetes and high blood pressure.
Eye examinations include the assessment of refractive errors (nearsightedness, farsightedness, astigmatism, presbyopia), testing of distant and near vision, and color blindness tests, each playing a key role in evaluating visual function. Spadana Health Monitoring Clinic, with its modern devices and experienced specialists, provides the most accurate vision examinations for its clients.
Page Titles
Refraction Assessment
Refractive Errors of the Eye
Refractive errors occur when light does not properly focus on the retina, leading to blurred vision. The main types of refractive errors include:
Myopia (Nearsightedness): In this condition, a person can see nearby objects clearly, but distant objects appear blurry. It occurs when the eyeball is too long or the cornea has excessive curvature.
Hyperopia (Farsightedness): Contrary to myopia, individuals with hyperopia see distant objects more clearly than nearby ones. This condition results from a shorter-than-normal eyeball or insufficient curvature of the cornea.
Astigmatism: This occurs due to an irregular curvature of the cornea or lens, causing distortion and blurred vision at all distances.
Presbyopia: An age-related condition in which the lens of the eye loses its flexibility, making it difficult to focus on close objects. This issue typically affects individuals over the age of 40.
Methods of Refraction Assessment
In this method, the ophthalmologist evaluates the refraction of light in the eye using a retinoscope light and specialized lenses.
In this method, advanced computerized devices automatically calculate the refractive error of the eye.
In this test, the doctor determines the exact correction needed by placing different lenses in front of the patient's eye.
Visual Acuity Assessment
Visual Acuity Concept
Visual acuity is a measure of the eye’s ability to distinguish fine details of objects. This ability depends on the quality of light focus on the retina, the health of the retina, and the function of the optic nerve.
Methods of Distance and Near Vision Assessment
One of the most common methods for assessing distance vision. The patient looks at a chart containing rows of letters of different sizes from a specific distance, and the doctor records the visual acuity.
In this test, the patient holds a reading card with texts of different sizes at various distances, and the ability to focus on the text is assessed.
Applications of Vision Tests
- Monitoring vision changes over time and adjusting eyeglass prescriptions
- Screening for eye diseases such as cataracts and diabetic retinopathy
- Assessing drivers’ vision for issuing vision certification
Color Vision Testing
Color Blindness
Color blindness is the inability to accurately distinguish colors, particularly red, green, and blue. This condition usually occurs due to a dysfunction in the cone cells of the retina and can be either congenital or acquired.
Types of Color Blindness
The most common type of color blindness, which is usually inherited genetically, causing individuals to have difficulty distinguishing between red and green colors.
This type is rarer, and the individual is unable to correctly distinguish between blue and yellow colors.
A rare and severe type of color blindness in which the individual perceives all colors in shades of black, white, and gray.
Importance of Color Blindness Diagnosis
- Identifying color vision deficiencies in children and their impact on academic performance
- Assessing color recognition ability in critical professions such as driving, aviation, and graphic design
- Preventing safety issues caused by incorrect color perception in daily life
Why Aba Espadana Health Monitoring Clinic?
Espadana Health Monitoring Clinic is a specialized center for vision health assessment, offering comprehensive eye examinations using modern equipment and scientific methods. The reasons for its excellence include:
Utilizing precise computerized devices for eyeglass prescription determination and vision assessment.
The presence of experienced ophthalmologists and optometrists for a thorough assessment of patients' vision.
Conducting precise examinations and providing scientific reports for medical, occupational, and academic purposes.
Providing ideal conditions for vision tests in a calm and professional environment.
Address
Isfahan, Aghababaei Highway, after Hakim Shafa’i Overpass, Boulevard of Health, Sepahr Street, Salamat Town, Payesh Health Occupational Medicine Clinic
Phone number
+9831-35548162-63
Fax number
+9831-35548176
espadanateb2356@gmail.com
