Contraindications; Adverse Events - Rayner Rayone Bedienungsanleitung

Preloaded Hydrophilic Acrylic IOL Injection System
Rayner intraocular lenses (IOLs) are single piece optical devices, manufactured
from Rayacryl (hydroxyethyl methacrylate/methyl methacrylate copolymer with
®
UV blocker). These devices are designed to be surgically implanted in the human
eye as a replacement for the crystalline lens, and are intended for placement in the
capsular bag following either phacoemulsification or manual extracapsular cataract
extraction (ECCE).
Rayner IOLs are intended to provide adjustment to the dioptric power of the
eye. Additionally, aspheric models are aberration neutral and therefore do not
add to the spherical aberration of the eye. Toric models are intended to provide
adjustment to the astigmatism of the eye. Trifocal models are intended to provide
pseudo accommodation to the eye.
IOL Material (Rayacryl
• Water content: 26% in equilibrium
• Refractive index: 1.46
• UV light transmission: shown in Figure 8 (UV 10% cut-off is 380 nm)
• Nd: YAG laser compatible
Indications
Rayner IOLs are indicated for the visual correction of aphakia in patients in whom
a cataractous lens has been removed by phacoemulsification or extracapsular
cataract extraction. These devices are intended to be placed in the capsular bag.

Contraindications

Apart from non-specific contraindications related to any form of ocular surgery, the
following non-exhaustive list of specific contraindications must be respected:
• Microphthalmia
• Active ocular diseases (e.g. chronic severe uveitis, proliferative diabetic
retinopathy, chronic glaucoma not responsive to medication)
• Corneal decompensation
• Endothelial insufficiency
• Children under the age of 18 years (toric and trifocal IOLs only)
Additionally for trifocal IOLs:
• Pseudo exfoliation
• Pars planitis
• Patients with ocular disorders, other
than cataract, that could potentially
cause future acuity losses to a level
of 20/30 or worse in either eye
• Patients who are expected to require
retinal laser treatment

Adverse Events

Cataract surgery for IOL implantation presents risks which the surgeon must
evaluate. Potential complications of cataract surgery are;
• Secondary glaucoma
• IOL replacement or extraction
• Precipitates
• Reduced vision
• Vitreous herniation
• Excessive intraoperative
vitreous loss
• IOL decentration
• Secondary membrane
• Expulsive haemorrhage
• IOL dislocation and subluxation
• Retrolenticular membrane
) Characteristics
®
• Inability to achieve secure placement
in the designated location e.g. absence
of secure peripheral anterior capsule,
zonule laxity or dehiscence; posterior
synechiae to the capsular bag
• Patients unlikely to adapt to
simultaneous multiple retinal images
• Corneal oedema
• Greater than 1 Dioptre of pre-
operative corneal astigmatism
(non-toric trifocal model only)
• Corneal oedema
• Endophthalmitis and panophthalmitis
• Retinal detachment
• Corneal dystrophy
• Haemorrhage
• Iris atrophy
• Pupillary block
• Cystoid macular oedema
• Severe ametropia and aniseikonia
• Iridocyclitis and hyalitis
• Deviation from target refraction and
Fibrin reaction.
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