482 Ortho-K (Overnight Lenses) Clinics in Seoul: A Public-Data Comparison for International Patients

We do not recommend or endorse any clinic. No rankings, ratings or reviews — only verifiable public information.

Key facts

482 clinics in Seoul are registered with HIRA with ophthalmology in their name or listed specialties.
This list consists of clinics using the registered name "…Eye Clinic (안과의원)" (481). Under Korean medical law only board-certified specialists may open a clinic under that name, so the sign alone is a verifiable signal. General clinics that merely list ophthalmology as a practice area are not included.
Among 478 clinics that disclose staffing, the average is 1.9 doctors and 144 have two or more.
By nearest station, clinics cluster around 강남역 (28) · 신논현역 (11) · 압구정역 (9).
This page does not rank or recommend clinics. Use the checklist below to compare them yourself.

Ortho-K lenses, sometimes called overnight lenses or dream lenses (드림렌즈 in Korean), are specially designed rigid contact lenses worn during sleep to temporarily reshape the cornea and reduce myopia during waking hours. They are most commonly considered for children and teenagers whose prescription is still changing, or for adults who prefer a non-surgical way to manage myopia without wearing glasses or standard contact lenses during the day. Because the effect is reversible and depends on consistent nightly use, they require a longer-term commitment to lens care and regular follow-up.

When evaluating a clinic for Ortho-K fitting, confirming professional credentials is an important first step. In South Korea, a clinic operating under the name 안과의원 (ophthalmology clinic) is legally required to be run by a board-certified ophthalmologist (전문의); this naming rule can serve as a basic reference point, although it is always advisable to verify the fitting practitioner's qualifications directly at the clinic. Confirming that the clinician who conducts your pre-fitting examination is also the one responsible for your ongoing lens management helps ensure continuity of care.

The comparison table on this page lists clinics based on publicly available information such as facility details and stated services — it does not represent a ranking or endorsement. Use it alongside the checklist below to ask consistent questions at each clinic you visit.

How this was compiled

We took every clinic in HIRA open data whose address or nearest-station tag falls in Seoul and whose name or listed specialties include ophthalmology (482 clinics).
Columns are: registered name type (signal of a board-certified founder), number of doctors, area and nearest station, website, phone, and published hours — all public data. We do not use reviews or ratings.
"Clinics covered" are those with the most public information available (ties broken by most recently verified); this is not a ranking. The full list is in Korean alphabetical order.

At a glance

Clinic	Registered name	Doctors	Nearest station	Area	Website	Phone
건양의료재단 김안과병원	Eye Clinic (안과의원)	61	영등포시장역	영등포구	Open	1577-2639
누네안과병원	Eye Clinic (안과의원)	30	선릉역	강남구	Open	02-1661-1175
실로암안과병원	Eye Clinic (안과의원)	12	등촌역	강서구	Open	02-2650-0700
365밝은안과의원	Eye Clinic (안과의원)	6	신림역	관악구	Open	02-878-3650
41타워안과의원	Eye Clinic (안과의원)	2	오목교(목동운동장앞)역	양천구	Open	02-6959-4107
강남밝은명안과의원	Eye Clinic (안과의원)	1	강남역	서초구	Open	533-9400

"Clinics covered" are those with the most public information available (ties broken by most recently verified); this is not a ranking. The full list is in Korean alphabetical order.

Ortho-K (Overnight Lenses) clinic checklist

1Verify the fitting practitioner's credentials
Ask directly whether the ophthalmologist (전문의) who examines you will also be responsible for fitting and follow-up adjustments. Confirm their specialization in contact lens fitting or corneal health, as Ortho-K involves ongoing monitoring of corneal shape and tissue response.
2Confirm the corneal mapping and pre-screening process
A proper Ortho-K candidate assessment typically includes corneal topography to measure the curvature and shape of your cornea, as well as checks for conditions that may affect lens suitability such as dry eye or corneal irregularities. Ask the clinic to explain which instruments are used and how the results are used to select your lens parameters — this is specific to Ortho-K fitting and directly affects whether the lenses will perform as intended.
3Ask about the lens trial and follow-up schedule
Ortho-K fitting often involves a trial period during which the lens parameters may be adjusted based on how your cornea responds. Clarify how many follow-up visits are included, at what intervals they are scheduled, and what happens if your prescription or corneal response changes over time.
4Request a written, itemized cost estimate
Total costs for Ortho-K can vary considerably depending on lens brand, the number of fitting sessions, follow-up visits, and replacement lens policies, so a single quoted figure can be misleading without context. Ask for a written breakdown that separates the initial fitting fee, lens cost, included follow-ups, and any charges for replacement or re-fitting.
5Clarify the clinic's policy on lens replacement and discontinuation
Ortho-K lenses have a limited lifespan and need periodic replacement; confirm the clinic's policy on how and when replacements are arranged and at what cost. Also ask what the recommended process is if you choose to stop wearing the lenses, as the cornea gradually returns to its original shape and monitoring may still be advisable during that period.

Warning signs

1The person conducting your consultation is not a physician
In some clinics, initial consultations or lens fitting explanations may be delivered by staff who are not licensed ophthalmologists. Lens selection and fitting decisions for Ortho-K should involve a qualified eye care physician, as incorrect lens parameters can affect corneal health over time.
2Pressure to pay in full on the same day
Being encouraged to complete full payment during your first visit — before a proper corneal assessment has been conducted — does not allow you sufficient time to review the written estimate or compare options. A clinic that allows you to take home the itemized quote and return for payment after you have made an informed decision is following more transparent practice.
3Refusal to provide a written cost estimate
If a clinic declines to provide a written, itemized breakdown of fees, it becomes difficult to understand exactly what is included in the quoted price or to compare it with other clinics. Written estimates and signed informed-consent documents are standard practice and you are entitled to ask for them before agreeing to anything.
4Unclear policy on managing adverse corneal reactions
Because Ortho-K lenses are worn overnight and in close contact with the cornea for extended periods, there is a possibility of adverse reactions such as corneal staining, infection risk, or shape changes that require clinical attention. Ask the clinic specifically how they handle such situations — including whether after-hours or urgent contact with a physician is available — and confirm that this information is documented in writing before you begin lens wear.

FAQ

How long does it take to see a noticeable effect from Ortho-K lenses?

The time to achieve clear daytime vision varies by individual and depends on factors such as the degree of myopia and how the cornea responds to reshaping. Many people notice an improvement within the first few days, but reaching a stable result can take several weeks of consistent nightly wear. Your fitting ophthalmologist is best placed to give you a realistic expectation based on your specific corneal measurements.

What happens if I stop wearing the lenses?

Ortho-K reshaping is temporary and reversible; once you stop wearing the lenses regularly, your cornea will gradually return to its original curvature and your myopia will return. The rate of reversal varies between individuals, and some practitioners recommend a monitoring visit during the discontinuation period to check that the cornea is recovering normally. Discuss the expected timeline with your ophthalmologist before deciding to pause or stop lens wear.

Are there eye conditions that make Ortho-K unsuitable?

Certain conditions — including significant corneal irregularity, severe dry eye, or specific corneal diseases — may affect whether Ortho-K is appropriate for a given patient. A thorough pre-fitting examination including corneal topography is the standard way to identify any such factors. The decision about suitability should be made by a qualified ophthalmologist after reviewing your individual examination results.

How do I confirm that the clinic is run by a board-certified ophthalmologist?

In South Korea, a clinic using the designation 안과의원 (ophthalmology clinic) is legally required to be directed by a board-certified ophthalmologist (전문의); you can ask the clinic directly to confirm the qualifications of the physician who will conduct your examination and manage your care. You may also verify a physician's specialist registration through the Korean Medical Association's publicly accessible registry if you wish to do so independently. This step is straightforward and any reputable clinic should welcome the question.

Why does the total cost vary so much between clinics, and how should I compare?

Ortho-K costs differ based on variables such as the lens brand and design used, the number of fitting sessions required, how many follow-up visits are included in the quoted fee, and the clinic's replacement lens policy — so a lower headline figure does not necessarily mean a lower total cost over time. Requesting a written itemized estimate from each clinic you consult allows you to compare like for like rather than comparing single summary figures. Bring your list of checklist questions to each visit so that you are evaluating the same information across all clinics.

482 clinics in Seoul are registered with HIRA with ophthalmology in their name or listed specialties?

482 clinics in Seoul are registered with HIRA with ophthalmology in their name or listed specialties. This list consists of clinics using the registered name "…Eye Clinic (안과의원)" (481). Under Korean medical law only board-certified specialists may open a clinic under that name, so the sign alone is a verifiable signal. General clinics that merely list ophthalmology as a practice area are not included.

Closing note

No comparison table or checklist can substitute for a face-to-face examination by a qualified ophthalmologist who can assess your individual corneal health and prescription needs. Use the table on this page to identify clinics worth visiting, then bring the checklist questions with you to each consultation so you can gather consistent, verifiable information before making any decision. Taking the time to request written estimates and confirm practitioner credentials at each clinic is the most reliable way to make an informed comparison.

This guide is for information only and is not medical advice. Decide on any procedure only after consulting a doctor. Results vary between individuals.