Other products from "CARL ZEISS MEDITEC AG"
No Primary DI Version or Model Catalog Number Device Description Product Code Product Code Name Device Class Brand Name
1 04049539072122 7212 GWG Endoscope, Neurological 2 QEVO
2 04049539104403 3.6.2 NFJ System, Image Management, Ophthalmic 2 CALLISTO eye
3 04049539101440 304534-3001-530 JAD System, Therapeutic, X-Ray 2 INTRABEAM® Surface Applicator Set 1.0 cm
4 04049539101822 326038-0000-000 KKX Drape, Surgical Drapes
5 04049539101778 000000-1501-288 KMN Chair And Table, Medical 1 INTRABEAM® Cart
6 04049539102430 000000-1100-155 HJO Biomicroscope, Slit-Lamp, Ac-Powered 2 VISULUX®
7 04049539104410 3.7 NFJ System, Image Management, Ophthalmic 2 CALLISTO eye
8 04049539104366 CALLISTO eye NFJ System, Image Management, Ophthalmic 2 CALLISTO eye
9 04049539104342 302581-9050-000 for OPMI PENTERO 800 and OPMI PENTERO 900 FSO Microscope, Surgical, General & Plastic Surgery 1 BLUE 400
10 04049539103413 302732-0530-000 GWG Endoscope, Neurological Sterile Sheath for CONVIVO
11 04049539102454 305810-9009-000 HMW Drape, Microscope, Ophthalmic 2 2-Pack Asepsis VISULUX
12 04049539069092 3.5.1 EPT,HMR,NFJ Microscope, Surgical,Marker, Ocular,System, Image Management, Ophthalmic 1 CALLISTO eye
13 04049539066404 6640 FSO Microscope, Surgical, General & Plastic Surgery 1 KINEVO® 900
14 04049471093162 VISUCAM 524 The VISUCAM Digital Fundus Camera is suitable for photographing, displaying and The VISUCAM Digital Fundus Camera is suitable for photographing, displaying and storing data relating to the retina and surrounding parts of the eye beeing examined under mydriatic and non-mydriatic conditions. These photographs assist with the diagnosis and follow-up of eye diseases, which can be visually monitored and photographiacally documented. HKI Camera, Ophthalmic, Ac-Powered 2 VISUCAM 524
15 04049539101624 304534-6000-563 JAD System, Therapeutic, X-Ray 2 INTRABEAM® Spherical Applicator 4.5 cm
16 04049539101617 304534-6000-562 JAD System, Therapeutic, X-Ray 2 INTRABEAM® Spherical Applicator 4.0 cm
17 04049539101570 304534-6000-558 JAD System, Therapeutic, X-Ray 2 INTRABEAM® Spherical Applicator 2.0 cm
18 04049539101518 304534-3001-567 JAD System, Therapeutic, X-Ray 2 INTRABEAM® Flat Applicator Set 3.0 cm
19 04049539101464 304534-3001-532 JAD System, Therapeutic, X-Ray 2 INTRABEAM® Surface Applicator Set 3.0 cm
20 04049539103536 000000-0140-600 HMW Drape, Microscope, Ophthalmic 2 Sterilizable Metal Sleeve
21 04049539102386 306028-0000-000 KKX Drape, Surgical 2 SMARTDRAPE
22 04049539102690 303060-0166-000 This single use device is an accessory for ZEISS phaco systems. It has been desi This single use device is an accessory for ZEISS phaco systems. It has been designed to remove the cortex and clean the capsule bag during human cataract surgery. HQC Unit, Phacofragmentation 2 IRR & ASP HANDPIECES BIMANUAL FRONT
23 04049539101549 304534-3001-570 JAD System, Therapeutic, X-Ray 2 INTRABEAM® Flat Applicator Set 6.0 cm
24 04049539060228 302303-0000-000 HEX Colposcope (And Colpomicroscope) 2 KSK 150 FC
25 04049539101471 304534-3001-533 JAD System, Therapeutic, X-Ray 2 INTRABEAM® Surface Applicator Set 4.0 cm
26 04049539101327 306002-0000-000 KKX Drape, Surgical 2 VisionGuard® Lens Protectors
27 04049539101310 326084-0000-000 KKX Drape, Surgical OPMI® Drapes
28 04049539101242 306079-0000-000 KKX Drape, Surgical OPMI® Drapes sterile
29 04049539101198 306026-0000-000 KKX Drape, Surgical 2 OPMI® Drapes sterile
30 04049539101174 326044-0000-000 KKX Drape, Surgical 2 OPMI® Drapes
31 04049539072108 7210 OBO Tomography, Optical Coherence 2 RESCAN 700
32 04049471110074 1523-131 single use patient interface for VisuMax laser keratome HQF,HNO Laser, Ophthalmic,Keratome, Ac-Powered Treatment Pack (KP)
33 04049471110050 1462-333 single use patient interface for VisuMax laser keratome HQF,HNO Laser, Ophthalmic,Keratome, Ac-Powered Treatment Packs (Size M)
34 04049471092066 IOLMaster 500 The IOLMaster is intended for the biometric determination of ocular measurements The IOLMaster is intended for the biometric determination of ocular measurements for axial length, anterior chamber depth, corneal radius, white-to-white (WTW), and for the measurement of pupil size and deviation of the visual axis from the center of the pupil. For patients who are candidates for intraocular lens (IOL) implantation, the device also performs calculations to assist physicians in determining the appropriate IOL power and type for implantation. HJO Biomicroscope, Slit-Lamp, Ac-Powered 2 IOLMaster 500
35 04049471090178 SL 115 Classic The SL 115 Classic Slit Lamp is a AC-powered slit lamp biomicroscope intended fo The SL 115 Classic Slit Lamp is a AC-powered slit lamp biomicroscope intended for use in eye examination of the anterior eye segment, from the corneal epithelium to the posterior capsule. It is used to aid in the diagnosis of disease or trauma which affect the structural properties of the anterior eye segment. The optional SL cam 5.0 is a digital imaging solution that allows the user to take images and video sequences for documentation purposes of the anterior eye segment during slit lamp examinations. HJO Biomicroscope, Slit-Lamp, Ac-Powered 2 SL 115 Classic
36 04049539101785 304534-7000-600 LHO Instrument, Quality-Assurance, Radiologic 1 INTRABEAM® Water Phantom
37 04049539101631 304534-6000-564 JAD System, Therapeutic, X-Ray 2 INTRABEAM® Spherical Applicator 5.0 cm
38 04049539101594 304534-6000-560 JAD System, Therapeutic, X-Ray 2 INTRABEAM® Spherical Applicator 3.0 cm
39 04049539103512 Model II LMD System, Digital Image Communications, Radiological 1 CALLISTO eye Panel PC
40 04049539104700 303061-9110-000 The products are single use, sterile drapes to cover all surfaces of the main de The products are single use, sterile drapes to cover all surfaces of the main device with a potential need to get in contact with sterile objects during surgical procedures. PUI Drape, Surgical, Exempt 2 SCREEN COVER QUATERA 700
41 04049539100252 303060-0143-000 This single use device is an accessory for ZEISS phaco systems. It has been desi This single use device is an accessory for ZEISS phaco systems. It has been designed to remove the cortex and clean the capsule bag during human cataract surgery HQC Unit, Phacofragmentation 2 I/A HANDPIECE, 21G ANGLED 45°
42 04049539100184 303060-0001-000 This active reusable device is an accessory for ZEISS phaco systems. It has been This active reusable device is an accessory for ZEISS phaco systems. It has been designed to emulsify and aspirate the eye lens during human eye surgery by phacoemulsification technique. HQC Unit, Phacofragmentation 2 ULITE PHACO HANDPIECE
43 04049539064028 304534-0000-500 JAD System, Therapeutic, X-Ray 2 INTRABEAM® PRS 500
44 04049471090185 SL 120 The SL 120 Slit Lamp is an AC-powered slit lamp biomicroscopes intended for use The SL 120 Slit Lamp is an AC-powered slit lamp biomicroscopes intended for use in eye examination of the anterior eye segment, from the cornea epithelium to the posterior capsule. It is used to aid in the diagnosis of disease or trauma which affect the structural properties of the anterior eye segment.The optional SL cam 5.0 is a digital imaging solution that allows the user to take images and video sequences for documentation purposes of the anterior eye segment during slit lamp examinations. HJO Biomicroscope, Slit-Lamp, Ac-Powered 2 SL 120
45 04049471095036 VisuMax The VisuMax laser keratome is a femtosecond laser. It generates a beam of ultra- The VisuMax laser keratome is a femtosecond laser. It generates a beam of ultra-short laser pulses whichare guided through the aperture in the treatment objective .The optical system focuses the laser beam into the corneal tissue.The VisuMax femtosecond laser is indicated for use in ophthalmic surgery for the creation of corneal incisions in patients undergoing the following treatments:• In the creation of a corneal flap in patients undergoing LASIK surgery or other treatment requiring initial lamellar resection of the cornea• In patients undergoing surgery or other treatment requiring initial lamellar resection of the cornea• In the creation of a lamellar cut/resection of the cornea for lamellar keratoplasty• In the creation of a cut/incision for penetrating keratoplasty and corneal harvesting• Surgery or other treatment requiring initial lamellar resection of the cornea to create tunnels for placement of corneal ring segments.Additionally under class III: The VisuMax Femtosecond Laser is indicated for use in small incisionlenticule extraction (SMILE) for the reduction or elimination ofmyopia with or without astigmatism• for spherical refractive error (in minus cylinder format) from -1.00 diopters through -10.00 diopters,• for cylinder from -0.75 diopters through -3.00 diopters,• when refraction spherical equivalent is no greater in magnitude than 10.00 diopters,in patients 22 years of age or older with documentation of stable manifest refraction over the past year as demonstrated by a change in sphere and cylinder of ≤ 0.50 D in magnitude. HQF,OTL,HNO Laser, Ophthalmic,Femtosecond Laser System For Refractive Correction,Keratome, Ac-Powered 1 VisuMax
46 04049471090208 SL 130 The SL 130 Slit Lamp is an AC-powered slit lamp biomicroscopes intended for use The SL 130 Slit Lamp is an AC-powered slit lamp biomicroscopes intended for use in eye examination of the anterior eye segment, from the cornea epithelium to the posterior capsule. It is used to aid in the diagnosis of disease or trauma which affect the structural properties of the anterior eye segment.The optional SL cam 5.0 is a digital imaging solution that allows the user to take images and video sequences for documentation purposes of the anterior eye segment during slit lamp examinations. HJO Biomicroscope, Slit-Lamp, Ac-Powered 2 SL 130
47 04049539101457 304534-3001-531 JAD System, Therapeutic, X-Ray 2 INTRABEAM® Surface Applicator Set 2.0 cm
48 04049539104526 303061-9015-000 The Product is a single use sterile accessory kit for the ZEISS phaco and vitreo The Product is a single use sterile accessory kit for the ZEISS phaco and vitreoretinal systems and has been designed to direct balanced salt solution from irrigation source to the surgical handpieces and to convey the materials removed from the eye to a reservoir during eye surgery on anterior and posterior segments of the human eye. HQC Unit, Phacofragmentation 2 QUATTRO CASSETTE
49 04049539102515 303060-1025-000 This single use device is an accessory for ZEISS phaco systems. It has been desi This single use device is an accessory for ZEISS phaco systems. It has been designed to emulsify and aspirate the eye lens during human cataract surgery.(consists of TEST CHAMBER, PHACO TIP and SILICONE SLEEVE) HQC Unit, Phacofragmentation 2 PHACO SET PLUS 21G,FLARED,30°
50 04049539102508 303060-1024-000 This single use device is an accessory for ZEISS phaco systems. It has been desi This single use device is an accessory for ZEISS phaco systems. It has been designed to emulsify and aspirate the eye lens during human cataract surgery.(consists of TEST CHAMBER, PHACO TIP and SILICONE SLEEVE). HQC Unit, Phacofragmentation 2 PHACO SET PLUS 21G,BICONICAL,30°
Other products with the same Product Code "HKI"
No Primary DI Version or Model Catalog Number Device Description Brand Name Organization Name
1 04582275250107 NSP NA KONAN MEDICAL, INC.
2 04571130283152 NW500 NON-MYDRIATIC RETINAL CAMERA NW500 TOPCON CORPORATION
3 04571130283022 TRC-NW400 NON-MYDRIATIC RETINAL CAMERA TRC-NW400 TOPCON CORPORATION
4 04571130282957 3D OCT-1 3D OPTICAL COHERENCE TOMOGRAPHY 3D OCT-1(Type:Maestro2) TOPCON CORPORATION
5 04571130282643 TRC-50DX RETINAL CAMERA TRC-50DX TOPCON CORPORATION
6 04571130282636 TRC-50DX RETINAL CAMERA TRC-50DX TOPCON CORPORATION
7 04571130282193 ANTERIOR SEGMENT ATTACHMENT KIT AA-1 ANTERIOR SEGMENT ATTACHMENT KIT AA-1 TOPCON CORPORATION
8 04571130282186 HA-2 ANTERIOR ATTACHMENT HA-2 TOPCON CORPORATION
9 04562123289923 EF-2 EXTERNAL FIXATION TARGET EF-2 TOPCON CORPORATION
10 04562123289893 IF-1 ICG FILTER ATTACHMENT IF-1 for RETINAL CAMERA TRC-50DX TOPCON CORPORATION
11 04562123289848 TL-211 TV RELAY LENS ADAPTER TL-211 for RETINAL CAMERA TRC-50DX TOPCON CORPORATION
12 04562123289251 3D OCT-1 3D OPTICAL COHERENCE TOMOGRAPHY 3D OCT-1(Type:Maestro2) TOPCON CORPORATION
13 04562123289046 DRI OCT Triton(plus) 3D OPTICAL COHERENCE TOMOGRAPHY DRI OCT Triton(plus) TOPCON CORPORATION
14 04562123289039 DRI OCT Triton 3D OPTICAL COHERENCE TOMOGRAPHY DRI OCT Triton TOPCON CORPORATION
15 04562123288605 3D OCT-1 3D OPTICAL COHERENCE TOMOGRAPHY 3D OCT-1 TOPCON CORPORATION
16 04562123288582 IMAGEnet 6 IMAGEnet 6 OPHTHALMIC DATA SYSTEM TOPCON CORPORATION
17 04562123288322 3D OCT-1 3D OPTICAL COHERENCE TOMOGRAPHY 3D OCT-1 TOPCON CORPORATION
18 04562123288292 TRC-NW8F(plus) NON-MYDRIATIC RETINAL CAMERA TRC-NW8F(plus) TOPCON CORPORATION
19 04562123288278 TRC-50DX RETINAL CAMERA TRC-50DX TOPCON CORPORATION
20 04562123288254 TRC-NW8 NON-MYDRIATIC RETINAL CAMERA TRC-NW8 TOPCON CORPORATION
21 04562123288186 TRC-NW8F NON-MYDRIATIC RETINAL CAMERA TRC-NW8F TOPCON CORPORATION
22 04562123287325 TRC-NW400 NON-MYDRIATIC RETINAL CAMERA TRC-NW400 TOPCON CORPORATION
23 04562123283624 INTERNAL FIXATION TARGET MOUNT INTERNAL FIXATION TARGET MOUNT for RETINAL CAMERA TRC-50DX TOPCON CORPORATION
24 04549292182729 imageSPECTRUM CANON INC. CANON INC.
25 04549292074345 CX-1 CANON INC. CANON INC.
26 04549292074338 CR-2 Plus AF CANON INC. CANON INC.
27 04549292074321 CR-2 AF CANON INC. CANON INC.
28 04049471096026 CIRRUS photo 800 The CIRRUS photo is a non-contact, high-resolution tomographic and biomicroscopi The CIRRUS photo is a non-contact, high-resolution tomographic and biomicroscopic imaging device that incorporates a digital camera which is suitable for photographing, displaying and storing the data of the retina and surrounding parts of the eye to be examined under mydriatic and nonmydriatic conditions.These photographs support the diagnosis and subsequent observation of eye diseases which can be visually monitored and photographically documented.The CIRRUS photo is indicated for in-vivo viewing, axial cross sectional, and three-dimensional imaging and measurement of anterior and posterior ocular structures, including cornea, retina, retinal nerve fiber layer, macula and optic disc.It also includes a Retinal Nerve Fiber Layer (RNFL), Optic Nerve Head (ONH), and Macular Normative Database which is a quantitative tool for the comparison of retinal nerve fiber layer, optic nerve head, and the macula in the human retina to a database of known normal subjects. The CIRRUS photo is intended for use as a diagnostic device to aid in the detection and management of ocular diseases including, but not limited to, macular holes, cystoid macular edema, diabetic retinopathy, age-related macular degeneration and glaucoma. CIRRUS photo CARL ZEISS MEDITEC AG
29 04049471096019 CIRRUS photo 600 The CIRRUS photo is a non-contact, high-resolution tomographic and biomicroscopi The CIRRUS photo is a non-contact, high-resolution tomographic and biomicroscopic imaging device that incorporates a digital camera which is suitable for photographing, displaying and storing the data of the retina and surrounding parts of the eye to be examined under mydriatic and nonmydriatic conditions.These photographs support the diagnosis and subsequent observation of eye diseases which can be visually monitored and photographically documented.The CIRRUS photo is indicated for in-vivo viewing, axial cross sectional, and three-dimensional imaging and measurement of anterior and posterior ocular structures, including cornea, retina, retinal nerve fiber layer, macula and optic disc.It also includes a Retinal Nerve Fiber Layer (RNFL), Optic Nerve Head (ONH), and Macular Normative Database which is a quantitative tool for the comparison of retinal nerve fiber layer, optic nerve head, and the macula in the human retina to a database of known normal subjects. The CIRRUS photo is intended for use as a diagnostic device to aid in the detection and management of ocular diseases including, but not limited to, macular holes, cystoid macular edema, diabetic retinopathy, age-related macular degeneration and glaucoma. CIRRUS photo CARL ZEISS MEDITEC AG
30 04049471093162 VISUCAM 524 The VISUCAM Digital Fundus Camera is suitable for photographing, displaying and The VISUCAM Digital Fundus Camera is suitable for photographing, displaying and storing data relating to the retina and surrounding parts of the eye beeing examined under mydriatic and non-mydriatic conditions. These photographs assist with the diagnosis and follow-up of eye diseases, which can be visually monitored and photographiacally documented. VISUCAM 524 CARL ZEISS MEDITEC AG
31 04049471093155 VISUCAM 224 The VISUCAM Digital Fundus Camera is suitable for photographing, displaying and The VISUCAM Digital Fundus Camera is suitable for photographing, displaying and storing data relating to the retina and surrounding parts of the eye beeing examined under mydriatic and non-mydriatic conditions. These photographs assist with the diagnosis and follow-up of eye diseases, which can be visually monitored and photographiacally documented. VISUCAM 224 CARL ZEISS MEDITEC AG
32 04049471093032 FF450plus The FF 450plus is a monocular retina camera for routine use. It is designed to c The FF 450plus is a monocular retina camera for routine use. It is designed to capture images of the eye, especially the retina area, as well as surrounding areas, to aid diagnosing or monitoring diseases of the eye that may be observed and photographed. If used in combination with dedicated optional equipment (electronic image sensors, digital archiving system) the system allows images to be displayed, stored, manipulated and archived digitally. FF450plus CARL ZEISS MEDITEC AG
33 04049471070118 1.0 This database entry covers UDI for SW Versions 1.0 and higher:(01)04049471070118 This database entry covers UDI for SW Versions 1.0 and higher:(01)04049471070118(10)200 -> Version 2.0; (01)04049471070118(10)201-> Version 2.0.1; (01)04049471070118(10)251-> Version 2.5.1; (01)04049471070118(10)260-> Version 2.6 Retina Workplace CARL ZEISS MEDITEC AG
34 03615020000496 ANAEYES OCT ANAEYES OCT for system linkage ESSILOR INTERNATIONAL
35 03615020000489 OCT2JT 3D Optical Coherence Tomography OCT500 is a non-contact, high-resolution tomogra 3D Optical Coherence Tomography OCT500 is a non-contact, high-resolution tomographic and biomicroscopic imaging device. It is indicated for in-vivo viewing, axial cross-sectional and three dimensional imaging, and measurement of posterior ocular structures, including the retina, retinal nerve fiber layer, ganglion cell plus inner plexiform layer, ganglion cell complex, macula, optic nerve head. It is also indicated for in-vivo viewing, axial cross-sectional and three dimensional imaging of anterior ocular structures, including the cornea.The instrument is intended for use as a diagnostic device to aid in the detection and management of ocular diseases including, but not limited to, macular holes, cystoid macular edema, diabetic retinopathy, agerelated macular degeneration, and glaucoma. OCT500 ESSILOR INTERNATIONAL
36 03615020000465 RET1IN Retina 800 is an automatic eye-fundus camera intended for taking digital images Retina 800 is an automatic eye-fundus camera intended for taking digital images of a human retina without the use of a mydriatic agent ESSILOR RETINA 800 ESSILOR INTERNATIONAL
37 03615020000267 RETINA 400 Retina 400 is an electromedical system that allows for digitally retrieving, acq Retina 400 is an electromedical system that allows for digitally retrieving, acquiring and processing of a retinal image, for use in ophthalmological diagnosis by medical specialists, and other uses inherent to the professional activity of other operators, optometrists and opticians, to the extent permitted by the laws and regulations for the exercise of their profession.An absolute new entry in the field for retinal imaging, the instrument allows for a direct, "live" monitoring on the computer screen, and capturing also in cases where the pupil diameter is extremely narrow. The instrument, with manual acquisition and electronically guided control, guarantees high precision and repeatability of the measurements. ESSILOR RETINA 400 ESSILOR INTERNATIONAL
38 00899281002137 RetCam Portable The RetCam Portable Ophthalmic Imaging System is designed to allow the quick and The RetCam Portable Ophthalmic Imaging System is designed to allow the quick and easy capture of wide field, high resolution, fully digital images and videos of the eye. RetCam Portable CLARITY MEDICAL SYSTEMS, INC.
39 00899281002120 RetCam Shuttle The RetCam Shuttle Ophthalmic Imaging System is designed to allow the quick and The RetCam Shuttle Ophthalmic Imaging System is designed to allow the quick and easy capture of wide field, high resolution, fully digital images and videos of the eye. RetCam Shuttle CLARITY MEDICAL SYSTEMS, INC.
40 00899281002113 RetCam 3 RetCam 3 Ophthalmic Imaging System is designed to allow the quick and easy captu RetCam 3 Ophthalmic Imaging System is designed to allow the quick and easy capture of wide field, high resolution, fully digital images and videos of the eye. RetCam 3 CLARITY MEDICAL SYSTEMS, INC.
41 00864222000428 RetCam Portable The RetCam Portable Ophthalmic Imaging System is designed to allow the quick and The RetCam Portable Ophthalmic Imaging System is designed to allow the quick and easy capture of wide field, high resolution, fully digital images and videos of the eye. RetCam Portable NATUS MEDICAL INC
42 00864222000411 RetCam Shuttle The RetCam Shuttle Ophthalmic Imaging System is designed to allow the quick and The RetCam Shuttle Ophthalmic Imaging System is designed to allow the quick and easy capture of wide field, high resolution, fully digital images and videos of the eye. RetCam Shuttle NATUS MEDICAL INC
43 00864222000404 RetCam 3 RetCam 3 Ophthalmic Imaging System is designed to allow the quick and easy captu RetCam 3 Ophthalmic Imaging System is designed to allow the quick and easy capture of wide field, high resolution, fully digital images and videos of the eye. RetCam 3 NATUS MEDICAL INC
44 00864218000104 iScreen Vision Screener 3000 The iScreen Vision Screener 3000 is a vision screening tool intended to capture The iScreen Vision Screener 3000 is a vision screening tool intended to capture and record red reflex images which contain information on ocular status to aid in eye examination. The iScreen Vision Screener 3000 is intended for use solely for a pediatric population by trained professionals. iScreen Vision ISCREEN VISION, INC.
45 00859623006919 DMI-1000 400000 ASSEMBLY PKGD LIPISCAN - US MEIBOMIAN GLAND EVALUATOR TEARSCIENCE, INC.
46 00859623006612 LVI-2000 100100 ASSEMBLY PKGD LIPIVIEW-2 - US LIPIVIEW II OCULAR SURFACE INTERFEROMETE TEARSCIENCE, INC.
47 00859623006513 LVI-1001 100000 ASSEMBLY PKGD LIPIVIEW 1 - INTL LIPIVIEW OCULAR SURFACE INTERFEROMETER TEARSCIENCE, INC.
48 00858848006780 iCam100 700-54524-001 iCam 12 MP iCam OPTOVUE, INC.
49 00858848006766 iFusion 700-54542-001 iFusion 80 with 12 MP Camera iFusion OPTOVUE, INC.
50 00858848006650 iFusion 700-49003-005 iVue NR for iFusion USCFG 230V iFusion OPTOVUE, INC.