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Mon–Sat 9:00–19:00 · 12 Orynbor St

Academician Bigeldiyev’s leading centre · 70,000+ surgeries

Gonioscopy: checking the drainage angle in glaucoma

Normal pressure doesn’t yet mean the eye’s drainage angle is open. In a few minutes gonioscopy shows where fluid leaves the eye and whether there’s a risk of a glaucoma attack.

10,000 ₸for both eyes · done by a laser surgeon

Usually together with a doctor’s consultation: 20,000 ₸ per visit, the back-of-the-eye exam included.

Dr. Zhukeyev at the slit lamp in an RB CLINIC room
Dr. Zhukeyev at the slit lamp, where gonioscopy is done
Karibayev Sayatin ophthalmology since 1996

10,000 ₸ for both eyes

Zhukeyev SagatKazakh Research Institute of Eye Diseases

10,000 ₸ for both eyes

Gonioscopy in brief

Gonioscopy is an examination of the anterior chamber angle of the eye through a special lens with a mirror, placed on the cornea at a slit lamp. This angle holds the eye’s drainage, through which the fluid inside the eye leaves. Gonioscopy shows whether the angle is open, narrowed or closed, and helps tell open-angle glaucoma from angle-closure glaucoma. At RB CLINIC (Astana, 12 Orynbor St) gonioscopy costs 10,000 ₸ for both eyes and is done by laser surgeons Karibayev Sayat Aralovich and Zhukeyev Sagat Serikovich. Booking: +7 771 848 00 00 (WhatsApp), Mon–Sat 9:00–19:00.

With the same three-mirror lens and a dilated pupil, the doctor also examines the edge of the retina — this is cycloscopy.

Three possible answers

What gonioscopy shows and what comes next

Gonioscopy has only three possible findings, and each has a clear next step. The angle of the eye is like a sink drain: what matters is not only how much water there is, but also whether the drain is clear.

Tap the doctor’s answer

This is what the conclusion after gonioscopy looks like. Choose an option and see what is usually done next.

The doctor builds the final plan from all the tests together: pressure, the back of the eye, the visual field.

Open angle: the fluid’s path is clear

Fluid reaches the drain freely. If the pressure is still high, it’s open-angle glaucoma: it’s treated with drops and, if needed, with micropulse trabeculoplasty.

100,000 ₸ per eye · trabeculoplasty, if the doctor prescribes it

How glaucoma is treated

Narrow angle: there is a risk of an attack

The iris is close to the drain, and the angle can close, for example in the dark or with certain drops. To prevent this, the doctor usually suggests laser iridotomy — a passage in the iris less than a millimetre wide.

100,000 ₸ per eye · laser iridotomy

What iridotomy is

Closed angle: treatment can’t wait

The drain is blocked by the iris, and the fluid has nowhere to go. This is angle-closure glaucoma: the doctor lowers the pressure and decides which laser or surgery is needed and how soon.

20,000 ₸ per visit · laser surgeon consultation

Who it’s for

Who needs gonioscopy

Gonioscopy is done for everyone with suspected glaucoma. Without it you can’t say for sure what type of glaucoma it is, and the whole treatment depends on that: drops, laser or surgery.

The doctor will order it if

Glaucoma is suspected

  • eye pressure above normal at the exam;
  • changes in the optic nerve on the back of the eye or OCT;
  • a narrowed visual field on perimetry.

Worth checking in advance

The angle may be narrow

  • long-sightedness, especially after 40;
  • glaucoma in parents, brothers or sisters;
  • before laser iridotomy and at check-ups after it;
  • after an eye injury.

Don’t wait for an appointment

Call straight away if

  • the eye and head on the same side suddenly start to hurt;
  • the eye has turned red and vision has become foggy;
  • there are rainbow halos around lights, and you feel sick.

This is what an acute glaucoma attack looks like. The pressure must be brought down the same day. At night and on Sundays — call an ambulance, 103.

+7 771 848 00 00

A few minutes at a slit lamp

How gonioscopy is done

It’s an exam, not an operation: no injections and no incisions. The eye is numbed with drops, and the lens only touches the cornea through a clear gel.

  1. DropsThe doctor puts in numbing drops. A minute later the eye no longer feels the touch.
  2. LensYou sit at the slit lamp, and the doctor places a lens with a mirror on the eye. The mirror shows the angle of the eye all the way round.
  3. ExamThe doctor slowly turns the lens and checks how open the angle is and whether there are any adhesions. If needed, they press lightly with the lens: this shows whether the angle will open.
  4. AnswerRight after the exam the doctor tells you what they saw and what comes next: monitoring, drops or laser. Vision may be a little blurry from the gel for a couple of hours.
Dr. Karibayev at the ZEISS VISULAS YAG III laser at RB CLINIC
If the angle is narrow, the laser is done right here: a ZEISS VISULAS YAG III laser in this same building

Prices from the price list

How much gonioscopy costs in Astana

Gonioscopy at RB CLINIC is 10,000 ₸ for both eyes. It’s done by a doctor, not a machine, so you get the answer right at the visit.

GonioscopyKaribayev S. A., Zhukeyev S. S.10,000 ₸ for both eyes
Laser surgeon consultationwith a back-of-the-eye exam20,000 ₸ per visit
Optic nerve OCTif the doctor orders it10,000 ₸ for both eyes
Laser iridotomyif the angle is narrow100,000 ₸ per eye

The price list is not a public offer: the administrator will confirm the price again when you book.

All clinic prices

Laser surgeons

Who does gonioscopy at RB CLINIC

The angle of the eye is checked by the same doctor who will do the laser if needed. You won’t have to retell your story to a second specialist: the decision and the treatment are in the same hands.

Karibayev Sayat Aralovich, ophthalmologist, laser surgeon at RB CLINIC

Karibayev Sayat Aralovich

Ophthalmologist, laser surgeon

In ophthalmology since 1996. Treats patients with glaucoma: looks at the angle, decides whether a laser is needed and does it himself.

in ophthalmology since 1996 · residency at the Kazakh Research Institute of Eye Diseases

10,000 ₸ for both eyes · gonioscopy

About Dr. Karibayev
Zhukeyev Sagat Serikovich, ophthalmologist, laser surgeon at RB CLINIC

Zhukeyev Sagat Serikovich

Ophthalmologist, laser surgeon

Laser eye treatment, glaucoma and laser vision correction. He’ll show you and explain in plain words what he saw in the angle of the eye.

residency at the Kazakh Research Institute of Eye Diseases, 2019–2022

10,000 ₸ for both eyes · gonioscopy

About Dr. Zhukeyev

Doctor 1 of 2 · swipe sideways

Reviews on Yandex and Google Maps

What people write about our glaucoma doctors

People left these reviews themselves, on Yandex and Google Maps — where we can’t delete or change a single word. Newest first, quoted as written.

Ayzada I.★★★★★2026

От имени родственников пациента благодарим врачей и персонал клиники за профессионализм и заботу.
Лечение глаукомы прошло успешно, состояние под контролем.
Очень довольны качеством помощи, рекомендуем

Karina E.★★★★★2026

Прекрасная клиника с сильными специалистами!
Проходили лечение глаукомы, обследование и лечение были организованы на высоком уровне, использовались современные методы и оборудование.
Состояние стабилизировалось, получили чёткие рекомендации для дальнейшего наблюдения.
Спасибо за качественную помощь и внимательное отношение к пациентам❤️

Arzu Yu.★★★★★4 November 2026

Екі жыл бұрын клиникада Доктор Галиевке операция жасаттық
Шүкір Аллаға бәрі сәтті өтті . Докторға алғысымыз шексіз. РБ клиникаға барғанымызға еш өкінбейміз. Кликаның мамандары өте білікті және білімді . Сыпайылықтары ерекше бір әлем😊.
Доктор Галиев , Доктор Жукеев біздің Қазақстанда сіздердей маман барына қуаныштымын❤️

Sultan Zh.★★★★★1 November 2026

Спасибо Сагату Сериковичу, специалист своего дела!

Svetlana★★★★★30 October 2026

хочу выразить благодарность своему доктору Жукееву Салату Сериковичу за профессионализм и внимательность и врачу аппаратного кабинета за внимательное отношение!

Deri T.★★★★★2026

… Сначала мне провели лазерную коагуляцию (зашили разрыв и отслоение сетчатки). Отдельная благодарность хирургу Саяту Араловичу за эмоциональную поддержку, юмор и высокий уровень работы!
Спустя месяц после этого мне сделали долгожданную коррекцию зрения методом Relex smile …

Aruzhan Sh.★★★★★2026

Мне сделали лазерную коррекция зрения ПО Релекс Смайл RB CLINIC.Cпасибо Жукееву Санат Сериковичу …

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Glaucoma is best caught early

Book gonioscopy

Write to us on WhatsApp: what your pressure is and what doctors told you before. The administrator will find a time with Karibayev or Zhukeyev.

  1. Consultation and pressure
  2. Gonioscopy
  3. Plan: monitoring, drops or laser
Gonioscopy 10,000 ₸ for both eyesConsultation 20,000 ₸ per visit

The answer — at the same visit.

Questions

Questions about gonioscopy

What is gonioscopy?

It’s an examination of the anterior chamber angle of the eye through a lens with a mirror. The angle holds the drain through which fluid leaves the eye. Gonioscopy shows whether it’s open, narrowed or closed.

How much does gonioscopy cost in Astana?

At RB CLINIC it’s 10,000 ₸ for both eyes. A laser surgeon consultation is 20,000 ₸ per visit, and the back-of-the-eye exam is already included.

Does it hurt?

No, the eye is numbed with drops. You feel a light touch of the lens and the bright light of the lamp. After the exam vision may be a little blurry from the gel for a couple of hours.

Can I drive after gonioscopy?

If the pupil wasn’t dilated, usually yes, as soon as the blurriness from the gel wears off. If at the same visit the doctor examined the back of the eye with a dilated pupil, it’s better not to drive that day.

How is gonioscopy different from measuring eye pressure?

Pressure shows how much fluid is in the eye right now. Gonioscopy shows whether the path by which it leaves is clear. With a narrow angle the pressure can be normal until an attack, which is why both tests are needed.

What if the angle is narrow?

Most often the doctor suggests laser iridotomy: the laser makes a passage in the iris, and the angle opens. At RB CLINIC it’s done by the same doctors, 100,000 ₸ per eye.

See also

RB CLINIC, Astana, 12 Orynbor St · +7 771 848 00 00 · Directions

10,000 ₸ for both eyes · gonioscopy