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Specific tests performed in our clinic

At our clinic, specific tests for the diagnosis and treatment of hearing loss, balance disorders, tinnitus and other ENT disorders are meticulously performed. With our comprehensive diagnostic tools such as hearing tests, vestibular evaluations and endoscopic examinations, we offer accurate diagnosis and personalized treatment plans.

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VNG (Videonystagmography) test battery

Consists of a series of tests used to assess the balance functions of the inner ear and central nervous system. The main tests included in the VNG test battery are:

Tests Used in the Evaluation of Balance:

1. Gaze Test: This test is performed to assess whether the eyes are focused on a specific point and whether there is any deviation from this point. In this way, the presence of nystagmus (involuntary eye movements) is investigated.2. Spontaneous Nystagmus Test: This is a test to assess whether the patient has involuntary, rhythmic oscillations in eye movements (nystagmus). This test is performed by observing the patient’s eyes in a free gaze state, without focusing on any target.To assess eye movements more precisely, a light can be shone on the eyes in a dark room or a special video goggle (Videonystagmography – VNG) can be used to record the eye movements.3. Smooth Pursuit Test: Assesses the ability of the eyes to follow a slow-moving object. Central nervous system disorders can affect this test.4. Saccadic Test: Assesses the ability of the eyes to move quickly from one point to another. This test provides information about central nervous system functions.5. Optokinetic Test: This test assesses the repetitive movements that the eyes make automatically in response to a moving visual pattern. This provides information about central and peripheral vestibular system function.6. Head Shake Test: Eye movements are monitored during rapid shaking of the head. This test can reveal asymmetry of the vestibular system.7. Positional Tests: Eye movements are evaluated in different head positions. The presence of nystagmus in certain head positions may indicate a problem in the inner ear. Especially Dix-Hallpike, Supine Head Roll, Deep Head Hanging tests have an important place in the evaluation of benign paroxysmal positional vertigo, commonly known as crystal shift.
  • Dix-Hallpike Testi
  • Supine Head Roll Test
  • Deep Head Hanging Test
8. Caloric Test: In this test, cold and hot air or water are applied to the external auditory canal respectively. These stimuli produce fluid movement in the inner ear and this movement produces nystagmus in the eyes. The caloric test is used to compare the function of the vestibular system in both ears.9.VEMP (Vestibular Evoked Myogenic Potentials) Test: It is a non-invasive test used to evaluate the function of the inner ear and vestibular system. It is especially used to evaluate the saccule (a structure in the inner ear that senses balance) and vestibulospinal tracts.

Purpose of VEMP Testing:

  • Saccule Function: The saccule is sensitive to head movements and gravity. VEMP testing is used to measure the function of this structure and the vestibular nerves connected to it.
  • Vestibulospinal Reflex: This reflex allows various muscles of the body to respond automatically to maintain balance. VEMP testing evaluates this reflex pathway.

Types of VEMP Testing:

  1. cVEMP (Cervical VEMP): Measures the contraction responses of the sternocleidomastoid muscle (neck muscle). It evaluates saccule and inferior vestibular nerve function.
  2. oVEMP (Ocular VEMP): Measures the responses of the lower eye muscles. It evaluates the function of the utricle (another structure in the inner ear that senses balance) and the superior vestibular nerve.
The VNG test battery allows assessment of the vestibular system (balance system) and eye movement control. Test results provide important information in determining the causes of symptoms such as dizziness, imbalance and vertigo.10. Saccadometry TestSaccadometry is an advanced oculomotor test and provides a functional assessment of the different brain regions and circuits involved in the generation of saccadic eye movements. Saccades are traditionally analyzed by three different properties, including latency, amplitude and velocity. Saccadometry is a cognitive test that adds new analysis data to these traditional analysis parameters of saccades, performing phase data analysis that provides more information for lesion localization, looking at fatigability and error measurement with longer test duration.This in-depth examination with the Prosaccade and Anti-Saccade tests provides clinically applicable solutions to gain insight into neurological disorders such as concussion, head trauma, neurodegenerative diseases, movement disorders, depression and attention deficit disorders. These more advanced tests provide information that is not always detected in traditional saccade testing.11. vOCR – Ocular Counter Roll TestThe vOCR test is a clinical test used to assess otolith function using a torsional eye tracking algorithm. It allows you to evaluate otoliths and their central connections.What is Ocular Counter Roll (OCR)?OCR is a small angular movement of the eyes in the opposite direction of the head tilt when the head is tilted laterally (sideways). For example, when the head tilts to the right, the eyes roll slightly to the left. This reflex is important for maintaining balance and visual stability and helps the eyes to see the world in a stable way, depending on the position of the head.Purpose of the testThe OCR test is used to assess the functionality of the otolith organs and the vestibular system. In particular, it indicates the source of otolith dysfunctions, vestibular nerve lesions, central vestibular disorders, dizziness and imbalances.The OCR test is a non-invasive test used to assess the function of the vestibular system and otolith organs. It has an important place especially in the diagnosis of balance disorders, dizziness and neurological diseases.12. VHIT (Video Head Impulse Test)The VHIT (Video Head Impulse Test) is a test used to assess the function of the vestibular system, particularly the semicircular canals (semicircular canals). By measuring the vestibular-ocular reflex (VOR), the VHIT provides a rapid and non-invasive assessment of vestibular function in both ears.

Purpose of the VHIT Test:

  • Assessment of the Vestibular-Oculomotor Reflex (VOR): This reflex allows the eyes to remain focused on a fixed point when the head is moved quickly. If the VOR is not working correctly, it may indicate a disorder in the vestibular system.
  • Detection of Peripheral Vestibular Disorders: VHIT is used to evaluate peripheral vestibular disorders, especially vestibular neuritis.
The VHIT test is a modern and effective way to assess the functionality of the vestibular system and is used in the diagnosis of many vestibular disorders. Test results provide critical information to determine the cause of patients’ symptoms and develop appropriate treatment methods.

Tests Used in the Evaluation of Hearing

1. Pure Tone AudiometryIt is based on the use of pure tones to evaluate the hearing of individuals. In our clinic, pure tone audiometry, speech tests, free-field tests and quiet room are used to accurately determine hearing loss and reach the correct diagnosis and treatment. Free-field audiometry, which is limited in Antalya, is also available in our clinic. With free-field audiometry, we determine the benefit that our patients with hearing aids receive from their hearing aids.2. Speech AudiometryAlthough we determine hearing thresholds with pure tone thresholds, this is not completely sufficient. Speech audiometry in our clinic provides us with valuable information about pathologies in the middle ear, cochlea, auditory nerve, central auditory system and auditory pathways.One of the sub-tests in speech audiometry is the annoying sound level determination test.The annoying sound level test gives us important information about the origin of the loss.3. Free Field AudiometryIt is a test used to determine the hearing thresholds of adults, children or infants who are seated at a table in the center line in a silent booth. In addition to determining hearing thresholds in children and infants, it is also used in individuals with hearing aids or implants.4. Behavioral Observation AudiometryIt is generally used in infants (0-4 months). In the Free Field, pure sound stimuli, speech stimuli and various noises are sent to the baby and the hearing thresholds of the baby are determined by the audiologist by looking at the behavioral responses of the baby (blinking, head turning, hand and foot movements, crying and sucking reflex).5. Visual Reinforcement AudiometryUsually applied in infants and children (5-24 months). Free Space or headphones are used. The child is seated so that he/she can see both sides. There are light boxes and moving toys on the right and left. During the test, an audiologist should play with the child and collect the child’s attention. Hearing thresholds are then determined by monitoring the child’s response to sounds sent to visual stimuli.6. Play AudiometryIt is usually used in children (24 months and older). The test is administered with Free Space or headphones. The child wears a headset and legos or toys are placed in front of him/her. The child is conditioned to listen to the lego every time a sound is heard and to throw the lego into the box after hearing the sound. In this way, the child’s hearing thresholds are determined.

Tests Used in the Evaluation of Tinnitus (Hearing)

In the assessment of tinnitus (ringing in the ears), various audiometric tests are used to determine the characteristics of hearing loss and tinnitus. These tests help to understand the type and severity of tinnitus and its impact on a person’s hearing. Here are the main audiometric tests used to assess tinnitus:1. Pure Tone Audiometry:Objective: Used to determine the degree and type of hearing loss.Procedure: The patient indicates whether they can hear sounds at different frequencies through headphones. This test is used to determine whether tinnitus is associated with hearing loss.Evaluation: Most patients with tinnitus may have hearing loss at certain frequencies. Pure tone audiometry maps this loss.2. Tinnitus Matching Test:Objective: Used to determine the frequency and severity of tinnitus.Procedure: The patient is presented with tones of various frequencies and loudness and asked to indicate which of these tones is closest to his/her tinnitus.Assessment: The frequency and intensity of the tinnitus is determined by the patient’s description of their own tinnitus. This can help in the objective assessment of tinnitus and treatment planning.3. Tinnitus Masking Test:Objective: Used to determine the level of masking (covering) of tinnitus.Procedure: The patient is presented with sounds of a certain frequency and intensity and it is determined when the tinnitus is completely masked (inaudible) by these sounds.Assessment: Determining the level of masking provides information about the severity and management of tinnitus. It is also used to assess whether masking therapy will be effective.4. Tinnitus Handicap Inventory (THI):Objective: Used to assess the impact of tinnitus on the patient’s quality of life.Procedure: The patient is asked questions about how tinnitus affects their daily life. This test is done in a questionnaire form.Evaluation: THI scores indicate the extent to which tinnitus affects the patient’s social, emotional and functional status. This can guide treatment planning.5. Loudness Discomfort Level (LDL) Test:Objective: It is used to determine the sound levels at which the patient is uncomfortable. Sound sensitivity (hyperacusis) may be common in patients with tinnitus.Procedure: The patient is presented with sounds of different intensities and the level of discomfort is determined.Evaluation: The LDL results can help to plan voice therapy for patients with voice sensitivity.6. Speech Audiometry:Objective: Used to assess how clearly the patient hears and understands speech.Procedure: The patient is given various words and sentences and asked to repeat these words or sentences.Assessment: Patients with tinnitus may have difficulty understanding speech as well as hearing loss. This test assesses speech understanding.These tests are used in combination to determine the causes, type and severity of tinnitus. Tinnitus assessment is vital for accurate diagnosis and effective treatment planning.7. TympanometryTympanometry in our clinic is a test that detects the presence of fluid in the middle ear or movement disorders in the ossicular system by measuring middle ear pressure and also helps to detect middle ear air-pressure and Eustachian tube problems. It is frequently used in ear problems in children.8. Acoustic Reflex TestTympanometry in our clinic is a test that detects the presence of fluid in the middle ear or movement disorders in the ossicular system by measuring middle ear pressure and also helps to detect middle ear air-pressure and Eustachian tube problems. It is frequently used in ear problems in children.
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Halil Göktürk
5.0
17 June 2025

I met Dr. Deniz upon the recommendation of another patient. He performed my ear surgery approximately 6 months ago with the diagnosis of Cholestatum. His care and follow-up of his patient both before and after the surgery for 6 months is commendable. I would also like to thank Dr. Deniz for his confidence in his patient and his friendly approach. I am in a much better position after the surgery, both in terms of hearing and risk of infection. I would like to thank Prof. Dr. Mustafa Deniz Yılmaz and his team.

I went to my dear teacher Deniz because of my breathing difficulties. He and his team were very cheerful and caring. My surgery was very successful and our doctor Deniz and his team were always caring throughout the process. We definitely recommend them, they are very knowledgeable, you will never regret it.

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N G
5.0
16 June 2025

I had been experiencing a constant runny nose for a while. I decided to go to a private ENT specialist and I took a very good step. My doctor told me I had vasomotor rhinitis, which I had never heard of before. They had always given me allergy medication and sent me there. Mustafa Deniz made me feel very comfortable with the nasal wash he recommended. I had been using allergy medication unnecessarily for so long. You can go with peace of mind 😊.

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Sinem S
5.0
16 June 2025

I had a nose surgery 6 months ago. I am very pleased with the result. Mr. Deniz is a successful doctor in his field. You can choose him with peace of mind.

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Oktay BAŞKURT
5.0
16 June 2025

1-I had a nose surgery, there was no pressure problem with the device that was attached, when the tampon was removed I could breathe 100% from both noses, now it is completely open 2-The girl had an ear surgery. She was constantly sick because of her ear and was using antibiotics. She also had hearing problems. A tube was inserted. She has not been sick since that day, we got over a few coughs without antibiotics for the first time. She could hear well even the day after the surgery. In the first measurements, it was said that half of her hearing problem was gone. Now we are waiting for the 3-month check-up. But we do not have any problems with hearing. Thank you very much

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Adaada
5.0
16 June 2025

I had a nose surgery 6 months ago with my doctor Mustafa Deniz Yılmaz. The pre- and post-operation was very comfortable. The operation was better than I thought. I received very positive comments from those around me. You can trust your doctor and his team with peace of mind. Thank you Mustafa Deniz Yılmaz.

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Melisa Akyel
5.0
11 June 2025

About 10 months ago, Dr. Deniz performed my nose surgery. I wanted to wait a while to comment. First of all, it was a difficult surgery for me to decide, because I was very afraid of the surgery. I made my decision by considering the comments here. The surgery process went better than I expected. I had no pain or bruising, but I had a lot of swelling due to my nose skin. My nose has recently gotten rid of the swelling and settled down. I went there mostly for aesthetic purposes, but now I can breathe much better. I was very pleased with both Dr. Deniz's interest and sincerity, and the healthy and beautiful result we got. I think those who are undecided and those who have fears like me can trust Dr. Deniz with peace of mind.

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Kullanılmıyor
5.0
12 May 2025

I have been having serious difficulties breathing for a long time due to nasal congestion. My nasal passages were almost completely blocked. As a result of my detailed research, Prof. Dr. I had the opportunity to meet Mehmet Deniz Yılmaz. From the first examination, his professionalism, knowledge and sincere approach gave me great confidence. My surgery was extremely successful. The discomforts I experienced due to polyps have completely disappeared. I can breathe easily now. I cannot thank the doctor and his team enough. I would like to thank each and every one of them for their care and attention during this process.Prof. Dr. I recommend Mehmet Deniz Yılmaz and his team wholeheartedly.Thank you, dear Doctor. Thank you very much 🙏🏻

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Özgür Şanver
5.0
16 April 2025

When it comes to the teacher, he is the best in Antalya. How many places have I been to, how many doctors have I seen, what have I suffered over the years? Many doctors in Ankara, Istanbul, Antalya, none of them could even provide relief. May God bless my teacher Mustafa. We found him on the ground while looking for him in the sky. I recommend him to everyone with Meniere's disease.

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Kamile Yağcı
5.0
16 April 2025

My wife had apnea and snoring problems. Before Mustafa, other doctors said that about 5 different surgeries would need to be performed. We were worried and searched for another doctor. Looking at the comments here, we trusted Mustafa Hodja. Thank God, he said about 3 months ago that only closed nose surgery would be enough, and over time, the apnea would go away on its own. The surgery lasted 2.5 hours. My wife was discharged in the evening. There was no bruise or swelling on her face. She recovered within a week and returned to work. Meanwhile, his snoring decreased significantly and his apnea disappeared. Well done to our teacher. He is a very professional doctor and we recommend him to everyone.

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Esma Yılmaz
5.0
13 April 2025

My 2.5-year-old daughter could not breathe and her sleep was interrupted due to her adenoid problem. It was resolved in about 1 hour. Even right after the surgery, he started breathing very easily. Thank you so much, I'm glad to have you

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Hatice Yılmaz
5.0
3 April 2025

We would like to thank our doctor and thank Ms. Ayşegül for her support before and after the surgery. I wish you a healthy day.

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Take the First Step Now

Free Preliminary Consultation

Schedule your free initial consultation with Prof. Dr. Mustafa Deniz Yılmaz now. Take the first step in your treatment process and let’s start your journey to regain your health with personalized solutions.