Ophthalmologists and experts in the same field Dr. Rohit Varma has inspected the eyes of patients for well-being and general condition, as well as performed diagnostic tests to see if any disease is present. Early diagnosis and care provide the best chance for the patient to resolve eye and disease disorders and to maintain a clear, safe vision.
Dr. Rohit Varma, an Ophthalmologist, may perform any of the following tests, depending on the circumstances, age and unique concerns of the patient:
1. Questions relating to your medical background
An ophthalmologist may inquire about current and previous vision problems, surgery, family history, drugs taken, and other medical conditions that may affect eye health, such as diabetes.
Daily eye checks are scheduled by the ophthalmologist to ensure that the patient’s contact lens prescription is up-to-date. Patients can wear their glasses or contact lenses to the clinic so that they can change their prescription if necessary.
2. Visual examinations
The degree of visual clarity of the patient is calculated by visual acuity examination. The Snellen chart consists of 11 rows of capital letters, each of which is written in a smaller scale than the one before it. With or without corrective lenses, the patient reads the names of the letters from a distance of 20 feet, covering one eye at a time. The ophthalmologist may prescribe new glasses or contact lenses or make changes to the existing prescription based on the results.
3. Testing the refraction
An ophthalmologist uses a computer-guided refractor to evaluate how light rays are concentrated at the back of the patient’s eye during a refraction assessment. Retinoscopy is another tool used in this diagnostic process. The ophthalmologist will shed light in the depths of the patient’s eye, determine the pattern of movement, also known as “red reflex,” as the light is reflected back in the retina, and report the degree of any refractive error.
If the refraction is significantly different from normal, the doctor will most likely recommend corrective lenses or refractive surgery.
An ophthalmologist may ask the patient to look through a phoropter, a device made up of different lenses rotating on a wheel system, to further refine the results of the refraction test. The patient decides which combination of lens strength and pairings provides the best overall visual acuity when reading the letters on the Snellen chart, as the doctor presents different combinations of lens strength and pairings.
4. Dilatation of the pupils
Dilation is a common technique used in eye examinations and is a very useful method to get a clear vision of the eye and to diagnose a variety of conditions. The ophthalmologist will examine the inside of each eye with the aid of dilation and one or more light sources.
Before returning to daily activities, patients should allow time to wear off the blurred vision induced by the test. They should also have sunglasses because the newly dilated eyes are light sensitive.
5. Use a slit lamp to examine the patient
An ophthalmologist can easily see the inner fluid chamber of the eye, as well as components such as iris, cornea, and lens, using a slit lamp, which is a type of lighted microscope for eye examination. Fluorescein dye is widely used to briefly stain the tear film that covers the eye in order to expose any damage to the cells. 6. The retina and the back of the eye are examined.
The Ophtalmologist performs a detailed examination of the posterior part of the eye, in particular the optic disk and retina, as well as the choroid, the blood vessel layer that protects and nourishes the retina, during a funduscopy or ophthalmoscopy. The ophthalmologist would most certainly have dilated the student of the patient in order to obtain a clearer view.
An ophthalmologist uses an ophthalmoscope to view the back of the eye by focusing a beam of light on the back of the eye. In other cases, the doctor may examine the same part of the eye while the patient is reclining with a condensing lens and a front-mounted lamp.
A. The Glaucoma Test
A tonometer is usually used in glaucoma screening to assess the level of intraocular pressure. After the numbing drops are applied, the tonometer blows a puff of air into the eye and the ophthalmologist tests the pressure in the eye. This is an important step forward in early diagnosis and treatment of glaucoma.
Applanation tonometry, which determines the amount of force used to temporarily depress the cornea, may in some cases be performed by an ophthalmologist. Fluorescein eyedrops with anesthetic are required for this procedure. The ophthalmologist may also use a pachometer that uses sound waves to determine the thickness of the cornea.
B. Testing muscle power
Patients may also be exposed to a muscle test that regulates eye movement. The Ophthalmologist instructs the patient to monitor a moving target, usually a lighted pen, using only his or her eyes. The doctor will check for any symptoms of muscle weakness or impaired movement control.
C. Review of the visual field
Visual field assessment assesses the ability of the patient to see objects on the edge of the vision without moving their pupils. The ophthalmologist instructs the patient to close one eye, to look forward without moving the head or eyes, and to take note of any object that appears.
The patient may also be asked to focus on a point in the middle of the screen and alert the examiner when the object moves out of the screen or changes its position.
D. Colour Blindness Test
The physician assesses the patient’s ability to see numbers and figures using a set of multi-coloured dot cards arranged in patterns. If the patient is unable to differentiate these numbers, the color blindness of the various forms and severity will be diagnosed by the ophthalmologist.
E. The contact of the patient
The ophthalmologist should spend time with the patient after the test to see the observations, test results, and next steps, as well as answer any questions that the patient may have.
