Optometrist

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90+ Optometrist Interview Questions and Answers

Updated 17 Feb 2025

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Q1. How did u refine the refraction correction

Ans.

I refined the refraction correction by utilizing advanced technology and carefully analyzing patient feedback.

  • I used advanced technology such as autorefractors and wavefront analyzers to obtain precise measurements of the patient's refractive error.

  • I carefully analyzed patient feedback to ensure that their visual needs were being met and made adjustments accordingly.

  • I also took into consideration any environmental factors that may have been affecting the patient's vision, suc...read more

Q2. Why there is difference power between contact lens and spectacle

Ans.

Contact lenses are closer to the eye than glasses, so they require a different power to correct vision.

  • Contact lenses sit directly on the eye, while glasses sit about 12mm away from the eye.

  • The distance between the lens and the eye affects the power needed to correct vision.

  • Contact lenses have a base curve that matches the curve of the eye, which also affects the power needed.

  • For example, a -2.00 prescription for glasses may require a -2.50 prescription for contact lenses.

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Q3. What are the history you should take from patients?

Ans.

Optometrists should take a detailed history from patients to understand their eye health and any relevant medical conditions.

  • Ask about the patient's current eye symptoms, such as blurred vision or eye pain.

  • Inquire about any previous eye injuries or surgeries.

  • Ask about the patient's medical history, including any chronic conditions like diabetes or hypertension.

  • Inquire about any medications the patient is currently taking, as some can affect eye health.

  • Ask about the patient's ...read more

Q4. What is refraction eye testing is refraction

Ans.

Refraction eye testing is a procedure to determine the refractive error of the eye and prescribe corrective lenses.

  • Refraction is the bending of light as it passes through the eye's cornea and lens.

  • The test involves using a phoropter to measure the eye's refractive error and determine the appropriate prescription for glasses or contact lenses.

  • The results of the test can also help diagnose conditions such as astigmatism, nearsightedness, and farsightedness.

  • The test is painless ...read more

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Q5. What is duechrom test and how it performed

Ans.

Duchrome test is a color vision test that evaluates the ability to distinguish between red and green colors.

  • It is performed using a set of plates with dots of different colors and sizes.

  • The patient is asked to identify the number or shape formed by the dots on the plates.

  • The test is used to diagnose color vision deficiencies, such as red-green color blindness.

  • It is also used to monitor the progression of certain eye diseases, such as glaucoma.

  • The test is quick and non-invasiv...read more

Q6. Clear sight lens frailty???which coating are there lenses???

Ans.

Clear sight lenses can have various coatings to enhance durability and performance.

  • There are several types of coatings available for lenses, such as anti-reflective coating, scratch-resistant coating, and UV protection coating.

  • Anti-reflective coating reduces glare and improves visual clarity, especially in low-light conditions.

  • Scratch-resistant coating helps to protect the lenses from scratches and prolong their lifespan.

  • UV protection coating blocks harmful ultraviolet rays f...read more

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Q7. What is Oct used for?

Ans.

OCT is used for imaging the structures of the eye, particularly the retina and optic nerve.

  • OCT stands for Optical Coherence Tomography.

  • It is a non-invasive imaging technique that uses light waves to create cross-sectional images of the eye.

  • OCT is commonly used in ophthalmology to diagnose and monitor conditions such as macular degeneration, glaucoma, and diabetic retinopathy.

  • It can help detect and measure abnormalities in the retina and optic nerve.

  • OCT is also used in researc...read more

Q8. What is convex lens type of convex lens

Ans.

A convex lens is a type of lens that is thicker in the middle and thinner at the edges, causing light rays to converge.

  • Convex lenses are also known as converging lenses.

  • They are commonly used in eyeglasses, cameras, and telescopes.

  • Examples of convex lenses include magnifying glasses and binoculars.

  • Convex lenses can form real or virtual images depending on the position of the object.

  • They are used to correct farsightedness in optometry.

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Q9. How to check eye vision

Ans.

Eye vision can be checked through various methods including visual acuity tests, refraction tests, and eye health evaluations.

  • Visual acuity tests measure how well a person can see letters or numbers on an eye chart from a distance.

  • Refraction tests determine the correct prescription for glasses or contact lenses.

  • Eye health evaluations check for any underlying conditions or diseases that may affect vision.

  • Other tests may include color vision tests, depth perception tests, and v...read more

Q10. What is jcc and how its performed

Ans.

JCC stands for Jackson Cross Cylinder, a tool used in optometry to measure astigmatism and determine the correct prescription for eyeglasses or contact lenses.

  • JCC is a lens with a cylindrical shape that has two powers at right angles to each other.

  • It is used to determine the axis and power of astigmatism in a patient's eye.

  • The optometrist will rotate the JCC lens while the patient looks at a chart to determine the correct prescription.

  • The JCC test is often performed during a ...read more

Q11. Are you knowledgeable about handling A-Scan Ultrasound, Slit Lamp, PG Marking, and Contact Lens Trials?

Ans.

Yes, I am knowledgeable about handling A-Scan Ultrasound, Slit Lamp, PG Marking, and Contact Lens Trials.

  • I have experience in using A-Scan Ultrasound for measuring the length of the eye and determining intraocular lens power.

  • I am proficient in operating a Slit Lamp for examining the anterior and posterior segments of the eye.

  • I am familiar with PG Marking techniques for precise placement of intraocular lenses during cataract surgery.

  • I have conducted numerous Contact Lens Trial...read more

Q12. What is subjective refraction?

Ans.

Subjective refraction is a process of determining a patient's eyeglass prescription based on their subjective feedback.

  • Subjective refraction involves the patient providing feedback on which lenses provide the clearest vision.

  • The optometrist uses a phoropter to present different lens options to the patient.

  • The patient is asked to compare and choose between different lens options to find the best visual clarity.

  • The final prescription is based on the patient's subjective prefere...read more

Q13. What is fogging and how its performed

Ans.

Fogging is a technique used to temporarily blur the vision in one eye to determine the refractive error of the other eye.

  • Fogging involves placing a lens or occluder over one eye while the other eye is tested for refractive error.

  • This technique helps to prevent accommodation, which can affect the accuracy of the test results.

  • Fogging is commonly used during subjective refraction tests to determine the patient's prescription for glasses or contact lenses.

  • For example, if the pati...read more

Q14. What is visual acuity?

Ans.

Visual acuity refers to the clarity or sharpness of vision, measuring the ability to see details at a specific distance.

  • Visual acuity is typically measured using an eye chart, with the result expressed as a fraction or a decimal.

  • The numerator of the fraction represents the testing distance, while the denominator represents the distance at which a person with normal vision can see the same details.

  • For example, if someone has a visual acuity of 20/40, it means they can see at 2...read more

Q15. Difference between hydrogel silicone hydrogel contact lens

Ans.

Hydrogel and silicone hydrogel contact lenses differ in their material composition and oxygen permeability.

  • Hydrogel lenses are made of a soft, water-containing material while silicone hydrogel lenses are made of a more rigid, oxygen-permeable material.

  • Silicone hydrogel lenses allow more oxygen to reach the cornea, making them more comfortable for extended wear.

  • Hydrogel lenses are typically cheaper than silicone hydrogel lenses.

  • Silicone hydrogel lenses are recommended for peop...read more

Q16. Practical part - uses of lensometer, Slit lamp, Auto refractometer

Ans.

Lensometer, slit lamp, and auto refractometer are essential tools for optometrists to diagnose and treat eye conditions.

  • Lensometer measures the power of lenses and helps in determining the prescription for glasses or contact lenses.

  • Slit lamp is used to examine the anterior and posterior segments of the eye, including the cornea, iris, lens, and retina.

  • Auto refractometer measures the refractive error of the eye and helps in determining the prescription for glasses or contact l...read more

Q17. How to check eye lens no.

Ans.

Eye lens no. can be checked through a comprehensive eye exam conducted by an optometrist or ophthalmologist.

  • A comprehensive eye exam includes a refraction test to determine the lens prescription.

  • The optometrist or ophthalmologist may also use a phoropter to fine-tune the prescription.

  • Other tests such as a visual acuity test and a dilated eye exam may also be conducted to check for any other eye conditions.

  • The lens prescription is usually given in diopters, which indicates the...read more

Q18. What is Amblyopia?

Ans.

Amblyopia, also known as lazy eye, is a vision disorder where one eye has reduced visual acuity due to abnormal development or early childhood eye conditions.

  • Amblyopia is typically caused by a misalignment of the eyes (strabismus) or a significant difference in refractive error between the two eyes.

  • It usually occurs during early childhood when the brain favors one eye over the other, leading to poor vision in the weaker eye.

  • Treatment options for amblyopia include wearing an e...read more

Q19. What is lens material

Ans.

Lens material refers to the material used to make the lenses in eyeglasses or contact lenses.

  • Lens material can vary depending on the type of lens and its intended use.

  • Common lens materials include glass, plastic, and polycarbonate.

  • Glass lenses are durable and scratch-resistant but can be heavy and breakable.

  • Plastic lenses are lightweight and shatter-resistant but can scratch easily.

  • Polycarbonate lenses are impact-resistant and lightweight, making them a popular choice for spo...read more

Q20. Is Optometrists is a clinician or a solution provider? And why?

Ans.

Optometrists are both clinicians and solution providers.

  • Optometrists are clinicians because they diagnose and treat various eye conditions and diseases.

  • They are solution providers because they prescribe and provide solutions such as eyeglasses, contact lenses, and vision therapy to improve vision.

  • Optometrists also offer solutions for managing and preventing eye problems, such as recommending eye exercises or providing advice on proper eye care.

  • They play a crucial role in prov...read more

Q21. What is with the rule astigmatism

Ans.

Astigmatism is a common eye condition that causes blurred vision due to an irregularly shaped cornea or lens.

  • Astigmatism occurs when the cornea or lens is not evenly curved

  • It can cause blurred or distorted vision at all distances

  • Symptoms include headaches, eye strain, and difficulty seeing at night

  • Treatment options include corrective lenses, such as glasses or contact lenses, or refractive surgery

Q22. What is lens and lens of type

Ans.

A lens is a curved piece of glass or plastic that refracts light to form an image. There are various types of lenses used in optics.

  • Lenses are used in eyeglasses, cameras, telescopes, microscopes, and other optical instruments.

  • The most common types of lenses are convex, concave, and cylindrical lenses.

  • Convex lenses are thicker in the middle and thinner at the edges, and they converge light rays to form a real or virtual image.

  • Concave lenses are thinner in the middle and thick...read more

Q23. What is the vertex distance

Ans.

Vertex distance is the distance between the back surface of a corrective lens and the front surface of the eye's cornea.

  • It is an important factor in determining the power of a corrective lens.

  • It affects the magnification and clarity of the image seen through the lens.

  • It is typically measured in millimeters.

  • A shorter vertex distance requires a stronger prescription to achieve the same level of correction as a longer vertex distance.

  • For example, if a patient's prescription is -...read more

Q24. What are the basics of a computer system?

Ans.

Basics of a computer system include hardware, software, input/output devices, and operating system.

  • Hardware components include CPU, memory, storage devices, and motherboard.

  • Software includes operating system, applications, and utilities.

  • Input devices allow users to input data, such as keyboard and mouse.

  • Output devices display information to users, such as monitor and printer.

  • Operating system manages hardware resources and provides interface for users.

  • Examples: CPU - Intel Cor...read more

Q25. On what bases you prescribe a priscription to a customer who is very complicated.

Ans.

Prescription for complicated customers is based on thorough examination and analysis of their medical history and current symptoms.

  • Conduct a comprehensive eye exam to determine the exact prescription needed

  • Analyze the customer's medical history and current symptoms to identify any underlying conditions that may affect their vision

  • Consider the customer's lifestyle and visual needs when prescribing glasses or contacts

  • Communicate clearly with the customer about their options and...read more

Q26. What is duechrome test

Ans.

The duochrome test is a vision test used to determine the refractive error of the eye.

  • It involves the use of two different colored filters, usually red and green.

  • The patient is asked to read letters or numbers on an eye chart while looking through the filters.

  • The test helps to determine if the patient has myopia (nearsightedness) or hyperopia (farsightedness).

  • If the patient sees the letters or numbers more clearly with one filter compared to the other, it indicates a refracti...read more

Q27. What is fogging technique

Ans.

Fogging technique is a method used by optometrists to determine the patient's refractive error by temporarily blurring their vision.

  • Fogging technique involves placing a lens in front of the patient's eye to induce blur.

  • This technique helps to relax the patient's accommodation, allowing for a more accurate measurement of their refractive error.

  • By gradually increasing the power of the lens, the optometrist can determine the patient's optimal prescription.

  • Fogging technique is co...read more

Q28. What is against the rule astigmatism

Ans.

Against the rule astigmatism is a type of astigmatism where the steepest curve of the cornea is located at the 90-degree axis.

  • It is a type of astigmatism where the steepest curve of the cornea is located at the 90-degree axis

  • It causes blurred vision at all distances

  • It can be corrected with glasses, contact lenses or refractive surgery

Q29. What is the major problem of the patients?

Ans.

The major problem of patients visiting an optometrist is usually related to vision issues or eye health concerns.

  • Common problems include refractive errors like nearsightedness, farsightedness, and astigmatism

  • Patients may also present with eye infections, dry eyes, or allergies

  • Some patients may have more serious conditions like glaucoma, cataracts, or macular degeneration

  • Others may be seeking help with managing conditions like diabetic retinopathy or keratoconus

Q30. How much you have experience in optometry

Ans.

I have 10 years of experience in optometry.

  • I have been practicing optometry for the past 10 years.

  • During my career, I have worked in various optometry clinics and hospitals.

  • I have successfully diagnosed and treated a wide range of eye conditions and vision problems.

  • I am well-versed in conducting comprehensive eye examinations and prescribing appropriate corrective measures.

  • I stay updated with the latest advancements in optometry through continuous education and training.

  • I hav...read more

Q31. When you can't prescribe contact lens?

Ans.

An optometrist cannot prescribe contact lenses in certain situations.

  • When the patient has an eye infection or inflammation

  • When the patient has severe dry eye syndrome

  • When the patient has corneal abnormalities or irregularities

  • When the patient has certain systemic conditions that affect the eyes

  • When the patient is not suitable for contact lens wear due to poor hygiene or inability to handle them properly

Q32. What should refine with JCC

Ans.

Refining with JCC involves improving communication skills and patient care.

  • Improving communication skills with patients and colleagues

  • Enhancing patient care through better understanding of their needs

  • Developing a patient-centered approach to optometry

  • Learning to effectively manage patient expectations

  • Staying up-to-date with the latest advancements in optometry

  • Building a strong network of professional contacts

Q33. How do you conduct a total refraction procedure?

Ans.

Total refraction procedure involves assessing a patient's vision and determining the appropriate prescription for corrective lenses.

  • Begin by taking a detailed patient history to understand any vision concerns or issues.

  • Perform a series of tests including visual acuity, cover test, retinoscopy, and subjective refraction.

  • Use a phoropter to determine the patient's refractive error and prescribe the appropriate corrective lenses.

  • Discuss the findings with the patient and make reco...read more

Q34. What is jccc

Ans.

JCCC stands for Johnson County Community College.

  • JCCC is a community college located in Johnson County, Kansas.

  • It offers a wide range of academic programs and courses.

  • JCCC provides education and training in various fields, including healthcare.

  • The college has a strong optometry program that prepares students for a career as optometrists.

  • JCCC is known for its state-of-the-art facilities and experienced faculty.

Q35. Have you prescribed contact lens to patients

Ans.

Yes, I have prescribed contact lenses to patients.

  • I have prescribed contact lenses to patients with various vision problems such as myopia, hyperopia, and astigmatism.

  • I have also prescribed specialty contact lenses for patients with conditions such as keratoconus and presbyopia.

  • I always ensure that patients receive proper instructions on how to care for their contact lenses and follow up with them to ensure their lenses are working well.

  • I also educate patients on the importan...read more

Q36. What is salary of optometrist ? What is distance indra nagar coloni to your haspital ?

Ans.

The salary of an optometrist varies depending on experience and location. The distance between Indra Nagar Colony and our hospital is approximately X kilometers.

  • Optometrist salary ranges from $70,000 to $150,000 per year

  • Factors that affect salary include location, experience, and type of employer

  • The distance between Indra Nagar Colony and our hospital is approximately X kilometers

Q37. What is type of frame

Ans.

The type of frame refers to the style and material of the eyeglass frame.

  • Frames can be made of various materials such as metal, plastic, or a combination of both.

  • Styles can range from classic and traditional to trendy and modern.

  • The type of frame chosen can impact the comfort, durability, and overall appearance of the glasses.

  • Examples of frame styles include aviator, cat-eye, round, and rectangular.

Q38. Tell me about the process of refraction?

Ans.

Refraction is the process of determining the appropriate prescription for corrective lenses by measuring how light is bent as it passes through the eye.

  • Refraction involves using a phoropter to test different lenses and determine the patient's visual acuity.

  • The process helps determine the refractive error, such as nearsightedness or farsightedness, and the appropriate prescription for glasses or contact lenses.

  • The optometrist will ask the patient to read letters on a chart whi...read more

Q39. What is the principal of auto refractometer

Ans.

Auto refractometer measures the refractive error of the eye automatically.

  • Auto refractometer uses infrared light to measure the refractive error of the eye

  • It provides an objective measurement of the eye's refractive error

  • The patient looks into the machine and receives a prescription based on the measurements

  • Commonly used in eye exams to determine the need for glasses or contact lenses

Q40. Whay you're suggeste rx sunglass?

Ans.

Rx sunglasses are recommended to protect eyes from harmful UV rays and improve vision clarity.

  • Rx sunglasses provide UV protection to prevent eye damage

  • They improve vision clarity by reducing glare and enhancing contrast

  • Prescription sunglasses are ideal for people with refractive errors

  • They are also useful for people with light sensitivity or post-surgery

  • Rx sunglasses come in a variety of styles and lens options

Q41. How are you refrection

Ans.

I am proficient in refraction techniques and use various tools to accurately determine a patient's prescription for corrective lenses.

  • I use a phoropter to measure a patient's refractive error

  • I also perform subjective refraction by asking the patient to compare different lens options

  • I am knowledgeable about different types of lenses and their benefits for specific vision needs

Q42. What is 6/6 & how to put vission

Ans.

6/6 is a measurement of visual acuity, representing normal vision. It means a person can see at 6 meters what a normal eye can see at 6 meters.

  • 6/6 is the standard measurement for normal vision in many countries

  • It means that a person can see at 6 meters what a normal eye can see at 6 meters

  • Visual acuity is typically measured using a Snellen chart

Q43. How many extra ocular muscles

Ans.

There are six extra ocular muscles in the human eye.

  • The six extra ocular muscles are responsible for controlling eye movement.

  • These muscles work together to allow the eyes to move in different directions.

  • Damage to these muscles can result in eye movement disorders such as strabismus.

  • The extra ocular muscles are named based on their location and function, such as the superior rectus and inferior oblique.

  • These muscles are controlled by cranial nerves III, IV, and VI.

Q44. What are 5 facts about the eye?

Ans.

The eye is a complex organ responsible for vision and plays a crucial role in our daily lives.

  • The eye has over 2 million working parts.

  • The cornea is the only part of the body with no blood supply.

  • The retina contains specialized cells called rods and cones that help us see in dim and bright light.

  • The eye can distinguish about 10 million different colors.

  • Blinking helps to moisten the eye and keep dust out.

Q45. What is colour vision

Ans.

Colour vision is the ability of the eyes to distinguish between different wavelengths of light and perceive colour.

  • Colour vision is made possible by the presence of cone cells in the retina of the eye.

  • There are three types of cone cells, each sensitive to different wavelengths of light: red, green, and blue.

  • The brain combines the signals from these cone cells to create the perception of colour.

  • Colour vision can be affected by various factors, such as genetics, age, and certai...read more

Q46. What is simple astigmatism

Ans.

Simple astigmatism is a type of astigmatism where the cornea is curved more in one direction than the other.

  • Simple astigmatism is a common type of astigmatism.

  • It occurs when the cornea is curved more in one direction than the other.

  • This causes light to focus on two different points on the retina, resulting in blurred vision.

  • Simple astigmatism can be corrected with glasses, contact lenses, or refractive surgery.

Q47. What is Maddox rod test

Ans.

Maddox rod test is a diagnostic test used to assess eye muscle imbalance and binocular vision.

  • It involves using a special lens called a Maddox rod to create a streak of light that the patient views through one eye at a time.

  • The test is used to determine if the eyes are working together properly and to detect any muscle imbalances or weaknesses.

  • The patient is asked to report what they see, and the results are used to diagnose conditions such as strabismus and amblyopia.

  • The tes...read more

Q48. Different between phoria and tropia

Ans.

Phoria is a tendency for the eyes to drift out of alignment when one eye is covered, while tropia is a misalignment of the eyes that is always present.

  • Phoria is a latent deviation that is only noticeable when one eye is covered

  • Tropia is a manifest deviation that is always present

  • Phoria can be corrected with exercises or prism glasses

  • Tropia requires more aggressive treatment like surgery or vision therapy

Q49. What is ducrome test

Ans.

Ducrome test is a color vision test used to detect red-green color deficiencies.

  • It involves presenting a series of colored dots or plates to the patient.

  • The patient is asked to identify the number or shape within the dots or plates.

  • The test is used to diagnose red-green color deficiencies, which are the most common type of color blindness.

  • It can also be used to monitor the progression of certain eye diseases.

  • The test is named after its inventor, French ophthalmologist Émile J...read more

Q50. What is compound astigmatism

Ans.

Compound astigmatism is a type of astigmatism where both the cornea and lens have different degrees of astigmatism.

  • Occurs when both the cornea and lens have different degrees of astigmatism

  • Results in blurred or distorted vision at all distances

  • Can be corrected with glasses, contact lenses, or refractive surgery

  • May be present from birth or develop later in life

  • Diagnosis is made through a comprehensive eye exam

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