Beyond the Optic: The RayOne Galaxy Pathway

Full-range-of-vision IOLs have changed the conversation with cataract and refractive lens exchange patients. RayOne Galaxy, using a spiral non-diffractive architecture designed to create a continuous transition from distance to near, has become my preferred platform when the aim is a high level of spectacle independence. Yet the lens is only one component of the result. The best outcomes arise when anatomy, optical quality, visual behaviour, binocular planning, and psychology are aligned before surgery.

I regard every patient as a refractive patient until proven otherwise – but not every patient is a premium-IOL patient. I begin with the desired visual life and work backwards. Technical perfection cannot compensate for poor selection, overlooked vitreous opacity, or unrealistic expectations.

Start with a Quiet Optical System

The ocular surface must be stable before final measurements or premium IOL counselling. Tear-film disturbance degrades keratometry, astigmatic planning, and retinal image quality, and can later be mistaken for failure of the lens. If the clinical examination and diagnostics do not agree, I treat the surface and repeat the measurements.

Topography and tomography should exclude meaningful irregularity and identify previous corneal refractive surgery. On corneal wavefront analysis centred on the vertex, my practical guides are total higher-order root mean square (RMS) below 0.5 µm and spherical aberration, coma, and trefoil, each below 0.3 µm at 5 mm. These are not standalone thresholds: maps, refraction, surface, and examination must agree. Eyes that have undergone laser-assisted in situ keratomileusis or photorefractive keratectomy require particular attention to spherical aberration because the cornea and IOL form one optical system.

Centration variables and dynamic pupillometry refine counselling. I am cautious when angle alpha exceeds approximately 0.5 mm, and less so if kappa exceeds this. Photopic pupils of 3.5 mm or less and mesopic pupils below 5 mm are favourable; a larger scotopic pupil prompts closer discussion of nighttime phenomena rather than automatic exclusion.

Macular optical coherence tomography (OCT), dilated retinal examination, and optic-nerve assessment are essential. Significant macular, retinal, or optic-nerve pathology generally moves me away from a full-range-of-vision lens. Net central corneal astigmatism must also be neutralised accurately. I recommend the toric Galaxy platform or femtosecond arcuate keratotomy from approximately 0.75 D of central 3 mm corneal astigmatism, incorporating posterior corneal astigmatism and surgically induced astigmatism.

The Vitreous is Part of Visual Quality

The posterior segment assessment must extend beyond the retina to the posterior hyaloid and vitreous cavity. Floaters are not, by themselves, a contraindication to using the Galaxy lens, but their influence on contrast and subjective quality must be explained. When a postoperative patient describes “waxy” vision despite a clear cornea, accurate refraction, centred IOL, and a normal macula and tear film, the vitreous deserves careful re-examination.

Selected patients with troublesome floaters may benefit greatly from pars plana vitrectomy performed after phacoemulsification. Conversely, if retinal holes or pathology make future vitrectomy with intraocular gas likely, I avoid a hydrophilic IOL because of the recognised risk of gas-associated optic opacification.

This is an important platform decision rather than a retinal footnote.

Match the Binocular Plan to the Patient’s Real World

Anatomical suitability is only half of selection. My visual-needs questionnaire records exact working distances and high-demand activities: desktop versus laptop use, fine print at 40 cm, night driving, golf, high-ball tracking, rally or performance driving, and other tasks requiring crisp dynamic distance vision. I establish whether the patient is distance-dominant, how strongly spectacle independence is prioritised, and which compromise would be least acceptable.

For most patients, bilateral RayOne Galaxy IOLs supply a continuous functional range of vision, from near, through intermediate and distance. My usual sequential strategy is to implant Galaxy first in the non-dominant eye. Four to five days later I assess distance quality, intermediate and near function, dysphotopsia, and satisfaction before choosing the dominant-eye lens. A patient who is satisfied with the first eye usually proceeds to bilateral RayOne Galaxy IOLs.

For the sharpest distance vision in keen golfers, for instance, or rare patients who are sensitive even to the mild dysphotopsia from their Galaxy first eye, I favour RayOne EMV in the second eye. EMV provides a monofocal quality of distance vision along with good intermediate vision, and can reduce the binocular dysphotopsia profile even further.

Surgical and Refractive Pearls

For IOL choices derived from calculators, I target the first hyperopic outcome (+) using optimised personal constants for my Pentacam AXL biometer, refined through my clinic’s online nomogram analyser, Zubisoft.

To refine my postoperative manifest refraction, which is then entered into my online nomogram, I target the first hyperopic outcome rather than accepting an apparent myopic result from autorefraction, which tends to show pseudo-myopia with this optic, most commonly -0.5 to -0.75 DS versus the true refraction. This is, however, variable and therefore should not be used as a substitute for manifest refraction, even with this allowance. Residual cylinder and surface disease should be addressed before attributing suboptimal quality to neuroadaptation. Posterior capsule opacification is also important: in an appropriately symptomatic patient, Nd:YAG capsulotomy can release the full distance potential, with acuity sometimes improving to approximately -0.1 logMAR. I commonly reassess the capsule at the six-week follow-up visit, while ensuring that the retinal and vitreous implications of capsulotomy have been considered.

When a patient is unhappy, the sequence matters: verify refraction, tear film, IOL position, capsule, macula, and vitreous before labelling the problem as neural. The phrase ‘neuroadaptation’ should never become a substitute for diagnosis.

MindVision: Preparing the Person for the Optic

I have developed a structured perioperative psychology and communication program called MindVision. Premium IOL satisfaction is not determined by Snellen acuity alone. Anxiety increases threat monitoring and sensory attention; unexpected blur, haloes, fluctuations, or floaters can then acquire disproportionate salience. From a predictive-processing perspective, the brain compares incoming visual information with what it expected to see. A large mismatch – prediction error – draws attention and may be interpreted as failure, even when healing is normal.

Before surgery, a patient enrolled in the MindVision program listens to a short surgeon-recorded audio message designed to reduce uncertainty, establish trust, and prepare the patient for the sensory and visual experience of cataract and refractive lens exchange surgery. It does not promise perfection. The MindVision audio explains that early vision may fluctuate, that the two eyes may initially feel different, and that the brain must learn to integrate a new visual range. The lifestyle questionnaire therefore serves twice: first as a lens-selection tool and then as the beginning of expectation alignment.

Perioperative communication is brief, predictable, and directive. Phrases such as “you may notice”, “this is expected”, and “continue to” combine prediction, normalisation, and action.

Immediate postoperative reassurance is followed by structured adaptation support through weeks one to four. Patients are encouraged to use their vision naturally across relevant distances, while expected fluctuations are framed as part of a changing system rather than evidence of failure.

The first 100-patient MindVision series, presented at Ophthalpreneurs in Sardinia this year, included 99 postoperative respondents, mostly treated with bilateral Galaxy IOLs or a custom match. Most scored calmness/anxiety, confidence/trust, preparedness/compliance, neuroadaptation and satisfaction at 4/5 or 5/5. Mean perceived calmness increased from approximately 4.12 to 4.62 and perception of low anxiety from 3.37 to 4.74. Confidence remained approximately 5/5 after surgery, while mean neuroadaptation increased from approximately 4.25 to 4.87.

These are descriptive patient-reported outcomes rather than a randomised comparison, but they are meaningful. They support the observation that structured preparation can preserve trust, reduce fixation on transient phenomena, and help patients interpret early visual changes constructively. In practice, this may contribute to a calmer postoperative journey and reduce avoidable chair time, while never allowing ‘neuroadaptation’ to substitute for investigation of refractive, surface, capsular, macular, or vitreous causes of suboptimal vision.

The Integrated Result

Successful RayOne Galaxy outcomes are created by a pathway, not a product alone. Select a healthy optical system, understand the posterior hyaloid, neutralise meaningful astigmatism, measure the patient’s visual life requirements, and retain the flexibility to customise the fellow eye. Then prepare the person – not just the eye – for the experience. When diagnostics, binocular optics, surgical detail, and expectations are aligned, a full-range-of-vision lens can deliver what patients value most: confident, functional vision across their real-world activities.

Production of this article was sponsored by Rayner.

Dr Dylan Joseph MBChB DipOphth SA FCOphth SA MMedOphth FWCRS-VS is a vision correction surgeon, fellowship trained with Arthur Cummings in Dublin, Ireland. He runs a boutique practice in Knysna, South Africa and focuses on a premium patient experience, providing premium lens technologies, laser vision correction, and implantable contact lenses.