PRESBYOND can increase halos and glare in some patients, so marked glare sensitivity requires cautious consideration.
Potential pros and cons
Optical trade‑offs need weighing.
- Improved focus can reduce some blur‑related glare
- However, blended‑vision optics inherently increase light scatter
- Large pupils and bright point‑light sources may accentuate halos
- People already very bothered by glare may be less satisfied
- Contact‑lens trials can help predict tolerance of visual phenomena
Counselling and alternatives
Decisions hinge on symptom tolerance.
- Detailed discussion of likely night‑time effects
- Consideration of monovision or lens‑based options with different optical profiles
- Optimisation of dry eye and ocular surface, which also contribute to glare
- Acceptance that some level of glare may persist despite surgery
- In extremely glare‑sensitive individuals, surgery may be deferred or avoided
