SEO KWANG

What SEO KWANG does

SEO KWANG (서광메디칼, Seokwang Medical) is a privately-held South Korean ophthalmic medical device distributor founded in July 1995 by CEO Jang Se-cheol (장세철). The company imports, distributes, and provides technical support for a broad portfolio of ophthalmology products sourced under exclusive Korean distribution agreements with global manufacturers including OPTOS (UK, wide-field retinal imaging), CRISTALENS (France, premium IOLs), Rayner (UK, cataract lenses), NOVAEYE (Australia, MIGS glaucoma surgery), OcuSoft (USA, eyelid hygiene), OPTIKON (Italy, cataract surgical equipment), and approximately ten additional partners spanning surgical instruments, dry eye devices, and intraocular lenses. Operations are conducted through three wholly-owned entities — 서광메디칼컴퍼니(주) as the core distributor, plus 서광갤럭시(주) and 서광크리스탈(주) for lens product distribution — with offices in Seoul (Yongsan-gu) and Goyang (Gyeonggi Province).

The product portfolio is organized into five categories: (1) wide-field retinal imaging systems (OPTOS OPTOMAP and Silverstone with OCT capability, Nikon-RetinaStation), of which OPTOMAP was designated a new medical technology by the Ministry of Health and Welfare in 2011 with insurance reimbursement established in 2013-2014; (2) cataract surgery IOLs and equipment (CRISTALENS Artis monofocal/multifocal/toric/MultiToric, Symbiose accommodating lens, Rayner RayOne EMV and EMV-Toric, OPTIKON Pulsar and Pulsar 2 phaco systems); (3) minimally invasive glaucoma surgery (NOVAEYE iTrack); (4) dry eye and eyelid hygiene (OcuSoft TTO MAX and Oust Demodex, Belotte-BBL IPL, Eye Mist, Medennium SmartPlug); and (5) surgical instruments and knives from CHARMANT, Diamatrix (Xpand iris speculum), HS John Weiss, Surgistar, and Stephens. SEO KWANG also distributes eye health nutritional supplements.

Revenue is generated through hardware sales of medical devices and consumables to ophthalmology hospitals and clinics across South Korea via a direct enterprise field sales motion with technical support, product demonstrations, and training. Customer engagement is supported through a company website, KakaoTalk channel, blog reviews, and product demonstration videos. In November 2023, the company signed an MOU with digital healthcare startup Klop to distribute an ophthalmic disease screening platform to primary care institutions, expanding its reach beyond ophthalmology specialists. Most recently, in December 2025, SEO KWANG began distribution of Rayner's premium cataract lenses in Korea, with planned introduction of the Galaxy intraocular lens in 2026.

Name

SEO KWANG

Legal name

서광메디칼 (Seokwang Medical)

Website

https://seokwangmed.co.kr

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

11–50 employees

Short description

SEO KWANG (서광메디칼) is a privately-held South Korean ophthalmic medical device distributor founded in 1995, importing and selling exclusive-distribution products (retinal imaging, cataract IOLs, MIGS, dry eye devices, surgical instruments) from global OEMs to Korean eye hospitals and clinics via a nationwide field sales network.

Ownership category

akta.pro rank

Product category

Ophthalmic Medical Devices

NAICS

Ophthalmic Goods Merchant Wholesalers (423460)

SIC

Ophthalmic Goods (3851), Surgical & Medical Instruments & Apparatus (3841)

akta.pro primary industry

Cataract Surgery Systems & IOLs (Phaco Systems, IOLs, Intraoperative Aberrometry, Viscoelastics) (HLAHAJAH)

akta.pro secondary industries

Dry Eye & Ocular Surface Devices (Meibography, Tear Osmolarity, IPL, Thermal Pulsation) (HLAHAJAF), Glaucoma Diagnostics & Surgical Devices (Tonometry, Gonioscopy, MIGS, Drainage Implants, Laser Trabeculoplasty) (HLAHAJAI)

Keywords

• Ophthalmic medical devices
• Cataract surgery equipment
• Retinal imaging systems
• Intraocular lenses distribution
• Medical device distribution

Headquarters

HQ city

Yongsan

HQ country

South Korea

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Personnel, Marketing or Sales, Supply Chain, Technology or R&D

Revenue model

1. Medical Device Distribution: Distribution of ophthalmology medical devices including retinal imaging equipment, cataract surgery instruments, intraocular lenses, and surgical consumables. Revenue generated from product sales to eye hospitals and clinics across Korea.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

SEO KWANG (서광메디칼) distributes a comprehensive portfolio of ophthalmology medical devices and equipment to South Korean eye hospitals and clinics. The portfolio includes wide-angle retinal imaging systems (OPTOS OPTOMAP/SILVERSTONE), cataract surgery intraocular lenses (CRISTALENS Artis, Symbiose; Rayner RayOne EMV/EMV-Toric; Galaxy), cataract surgery systems (Optikon Pulsar/Pulsar 2), minimally invasive glaucoma surgery devices (NOVAEYE iTrack), eyelid cleansing products (OcuSoft), and dry eye therapy devices (Vellocette-BBL IPL). The company operates as an exclusive distributor for multiple global manufacturers.

Product overview

SEO KWANG (서광메디칼) is an ophthalmic medical device distributor founded in 1995, not a product manufacturer. Its portfolio is organized around five product categories: (1) wide-field retinal imaging equipment — including OPTOS and Nikon-RetinaStation systems such as the SILVERSTONE with OCT capability; (2) cataract surgery IOLs and equipment — including CRISTALENS Artis (monofocal, multifocal, toric, and MultiToric variants), Symbiose accommodating lenses, and Rayner RayOne EMV and EMV-Toric lenses, distributed alongside Optikon Pulsar/Pulsar 2 surgical systems; (3) glaucoma surgery — including NOVAEYE iTrack for MIGS; (4) dry eye and eyelid hygiene — including OcuSoft eyelid cleansers (TTO MAX, Oust Demodex), Vellocette-BBL IPL device, and Eye Mist; and (5) ophthalmic surgical instruments and knives from brands such as CHARMAN, Diamatrix (Xpand), HS-John Weiss, Surgistar (Safety Knife), and Stephens.

Differentiator

Problem solved

Functional benefit

Products and services

• OPTOS OPTOMAP/SILVERSTONE Wide-Angle Retinal Imaging System Wide-field retinal imaging system for comprehensive retinal examination; SILVERSTONE is the advanced model with wide-angle OCT imaging capability and upgraded fundus analysis software. Distributed exclusively in Korea since 2010. Designated as new medical technology by Ministry of Health and Welfare with insurance reimbursement.
• CRISTALENS Artis Intraocular Lens (IOL) Line Cataract surgery intraocular lens product line from CRISTALENS (France) including monofocal, multifocal (Artis M), toric (Artis T), and multifocal-toric (Artis MultiToric) variants for astigmatism and presbyopia correction. Exclusive Korean distribution since 2008.
• CRISTALENS Symbiose Accommodating IOL Premium next-generation accommodating intraocular lens for presbyopia and cataract surgery, enabling clear vision across distance, intermediate, and near ranges. Introduced for presbyopia-cataract surgery in Korea.
• Rayner RayOne EMV Premium Cataract Lens Premium cataract lens developed with Dr. Barrett; provides extended depth of focus without dysphotopsia while maintaining high contrast sensitivity for natural near and intermediate vision. Distributed in partnership with Rayner (UK), world's first IOL developer.
• Rayner RayOne EMV-Toric IOL Toric variant of the RayOne EMV lens combining extended depth of focus with astigmatism correction for cataract patients with pre-existing corneal cylinder.
• NOVAEYE iTrack MIGS Device Minimally invasive glaucoma surgery (MIGS) device for ab interno canaloplasty, exclusively distributed in Korea through partnership with NOVAEYE (Australia). Introduced as a novel MIGS device for glaucoma treatment.
• OcuSoft Eyelid Cleansing Product Line Eyelid cleansing product line for blepharitis and meibomian gland dysfunction (MGD) management, including TTO MAX (high-concentration titrisated oil) and Oust Demodex formulations. Distributed in Korea since 2012.
• Vellocette-BBL Intense Pulsed Light Device Intense pulsed light (IPL) device for the treatment of dry eye disease caused by meibomian gland dysfunction. Domestic sales started in 2020.
• Optikon Pulsar/Pulsar 2 Cataract Surgery Systems Phacoemulsification systems for cataract surgery; Pulsar 2 supports MICS (micro-incision cataract surgery) technique. Distributed exclusively in Korea since 1995.
• Diamatrix Xpand Iris Speculum Iris speculum used during cataract surgery, distributed under exclusive partnership with Diamatrix (USA) since 2018.
• BioLogics Aqua Technology Eye Mist Ocular misting product for dry eye relief, distributed under exclusive partnership with BioLogics Aqua Technology (USA) since 2007.
• Medennium SmartPlug Punctum Plug Punctum plug device for punctal occlusion in dry eye treatment, distributed under exclusive partnership with Medennium (USA) since 2004.
• Eye Health Nutritional Supplement (눈 영양제) Nutritional supplement for eye health with antioxidant properties, distributed by SEO KWANG.
• Nikon-RetinaStation Retinal Imaging Device Retinal imaging device distributed under Nikon partnership for wide-field fundus photography.

Named customers1 record

Segments1 record

Ideal customer profiles2 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

15 partnerships are on record, tiered core and minor.

• Rayner Intraocular Lenses Limited (레이너)coreChannel Partner/ Reseller/ Distributor · 16 December 2025World's first IOL developer based in UK. Partnership with 서광 for Korean market distribution of RayOne EMV and RayOne EMV-Toric premium cataract lenses. Exclusive distribution relationship. In 2023, also signed exclusive agreement for iTrack minimally invasive glaucoma surgery device (MIGS). 2026 planned market expansion with Galaxy lens.
• Klop (클롭)coreStrategic or Co-development Partner · 6 November 2023Digital healthcare startup founded April 2023 (co-CEOs Park Sang-jun, Kim Hyun-jun). MoU signed for strategic cooperation. Klop operates eye disease platform connecting internal medicine diabetic patients to ophthalmology. Plans to leverage 서광's nationwide sales network to distribute platform to primary care institutions, while providing medical data analytics and platform technology for camera product utilization enhancement.
• NOVAEYE (노바아이)coreChannel Partner/ Reseller/ Distributor · 1 January 2023Australian company. Exclusive agreement signed in 2023 for iTrack MIGS device - a novel minimally invasive glaucoma surgery device introduced to Korea.
• CRISTALENS (크리스탈렌스)coreChannel Partner/ Reseller/ Distributor · 1 January 2021French premium intraocular lens manufacturer. Exclusive distribution in Korea since 2008. Products include Artis M (multifocal), Artis T (toric), Symbiose premium IOL. Launched next-generation accommodating IOL for presbyopia-cataract surgery in 2021.
• OcuSoft (오큐소프트)minorChannel Partner/ Reseller/ Distributor · 1 January 2012USA-based eyelid cleansing and eye care product manufacturer. Exclusive distribution in Korea since 2012. Products include TTO MAX for eyelid hygiene, Oust Demodex for recurrent blepharitis. Global leader in ophthalmology cleansing.
• OPTOS (옵토스)coreChannel Partner/ Reseller/ Distributor · 1 January 2010UK-based retinal imaging equipment manufacturer. Exclusive distribution in Korea since 2010. Products include Silverstone wide-angle retinal imaging system. OPTOMAP technology designated as new medical technology by Ministry of Health and Welfare with insurance reimbursement.
• OPTIKON (옵티콘)minorChannel Partner/ Reseller/ DistributorItalian manufacturer of cataract surgery equipment including Pulsar and Pulsar 2 MICS surgery systems, Hi-Scan ultrasound diagnostic equipment and Pachymeter. Exclusive distribution since 1995.
• Central Cheil Eye Hospital (센트럴제일안과)coreStrategic or Co-development PartnerLocated in Paju, Gyeonggi Province. Partnership meeting held in March 2026 with Rayner headquarters executives. Clinical education base for Northern Gyeonggi Province. Discussed collaboration on RayOne EMV lens clinical data and upcoming Galaxy lens for Korean market education and clinical cooperation.
• ChARMANT (샤르망)minorChannel Partner/ Reseller/ DistributorJapanese ophthalmic instruments manufacturer. Exclusive distribution in Korea since 2014.
• Diamatrix (다이아매트릭스)minorChannel Partner/ Reseller/ DistributorUSA-based iris speculum for cataract surgery. Products include X-pand. Exclusive distribution since 2018.
• HS John WeissminorChannel Partner/ Reseller/ DistributorUK-based ophthalmic surgical instruments. Exclusive distribution since 2016.
• Surgistar (써지스타)minorChannel Partner/ Reseller/ DistributorUSA-based ophthalmic surgical knives. Exclusive distribution since 2015.
• Bausch & Lomb (보شل롬)minorChannel Partner/ Reseller/ DistributorUSA-based surgical business division. National integrated sales agreement since 2009. Also handled Bausch & Lomb and Novartis ophthalmic pharmaceuticals distribution since 2006.
• Belotte-BBL (벨로체-BBL)minorChannel Partner/ Reseller/ DistributorDry eye laser light therapy device. Domestic sales started in 2020.
• BioLogics Aqua TechnologyminorChannel Partner/ Reseller/ DistributorUSA-based. Eye mist product 'I-Mist' distributed under exclusive agreement since 2007.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Carl Zeiss Meditec: Diversified ophthalmic device manufacturer (IOLs, lasers, OCT, surgical microscopes) with a direct Korean subsidiary. Competes across multiple categories in SEO KWANG's portfolio, including retinal imaging and cataract surgery systems.
• HOYA Surgical Optics: Global IOL and ophthalmic implants manufacturer with Korean commercial presence. Directly competes in the premium IOL category where SEO KWANG distributes CRISTALENS Artis, Symbiose and Rayner EMV.
• Alcon: Global ophthalmic medical-device leader with direct Korea operations and a full IOL/cataract, vitreoretinal, and vision-care portfolio. Directly competes with several of the brands SEO KWANG distributes (Rayner, CRISTALENS, OPTOS) and represents the principal channel-substitution threat.
• Santen Pharmaceutical: Japan-headquartered ophthalmic specialty pharmaceutical and device company with a Korean subsidiary. Overlaps with SEO KWANG's dry-eye/ocular-surface and glaucoma franchises and represents another established Korea-based commercial player.
• Bausch & Lomb: Global ophthalmic medical-device and pharmaceutical company. Already a supplier-partner of SEO KWANG (national integrated sales agreement since 2009) and simultaneously operates its own Korean sales force, illustrating how an incumbent can co-exist with — or displace — a local distributor.

Emerging players

• Nidek: Japanese manufacturer of ophthalmic diagnostic and surgical equipment (refraction, OCT, lasers, phaco). Comparable to SEO KWANG's portfolio in retinal imaging and cataract surgical systems, often distributed through local partners in Asia.
• STAAR Surgical: Premium ICL and IOL manufacturer. Competes in the same premium intraocular-lens category as CRISTALENS and Rayner products distributed by SEO KWANG, and is often taken to market through specialty Asian distributors.
• Topcon Healthcare: Japanese ophthalmic diagnostic equipment maker (fundus cameras, OCT, refraction). Direct competitor to OPTOS and Nikon-RetinaStation retinal imaging systems carried by SEO KWANG, frequently distributed via Asian regional partners.
• Tomey Corporation: Japanese ophthalmic diagnostic and surgical equipment maker (specular microscopy, ultrasound, OCT). Comparable to OPTOS/OPTIKON systems in SEO KWANG's cataract and imaging lineup and often partnered with regional Asian distributors.
• Heidelberg Engineering: German manufacturer of diagnostic ophthalmic imaging (SPECTRALIS OCT, HRT). Competes in the retinal imaging category alongside OPTOS and Nikon-RetinaStation in SEO KWANG's portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/profile.php

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SEO KWANG