The Lunelle ES70 Aphake is a soft contact lens with high plus power designed for children without a naturally functioning ocular lens. The unique properties of the ES70 material allow for all-day comfort and long-term wear.
Base curve calculation for the first contact lens
We recommend selecting the diameter of the lens by adding 2.00 mm to the HVID.
- Diameter 14.00 mm = flattest K + 0.80 mm
Age table for fitting
| Age | BC | Dia CL | Power in case of aphakia |
| 0 – 3 months | 8.00mm | 14.00mm | +40.00D |
| 3 – 6 months | 8.30mm | 14.00mm | +36.00D |
| 6 – 9 months | 8.30mm | 14.00mm | +33.00D |
| 9 – 12 months | 8.60mm | 14.00mm | +30.00D |
Progress of the adaptation
- Insert the lens for between 30 minutes and 2 hours. Make an over-refraction
- Biomicroscopy (× 10 to 15) white light: observe the lens with the patient looking straight ahead and during eye movement
- Test mobility by eyelid movement (Push up test)
- Movement of the lens should be from 1 to 2 mm downwards
- Check the appearance of the front optic zone: tear film, hydration, lubrication, deposit
- Check keratometry on the contact lens: (deformation of the mires)
- Check for corneal and conjunctival staining with fluorescein after lens removal
- Order the final lens based on the SN
| Application | Regular cornea, irregular cornea, post graft |
| Lens Type | Soft |
| Designed by | Lunelle |
Parameters
| Materials |
ES70
|
| Total diameter | 14.00mm |
| Base curve | 8.00mm to 9.20mm in 0.3mm steps |
| Sphere | +10.00D to +40.00D in 0.25D |
ES70 Material
Through intensive trials and research, ES70 has been proven to be one of the safest soft lens materials available. ES70 is versatile too and can be effectively used for the correction of all types of visual defects.
Outstanding Oxygen Permeability
Material oxygen permeability is an important parameter to consider when fitting any contact lens. For soft lenses, material permeability is related to its water content. The higher the water content the lower the DK value.
However, while the ES70 material used for Lunelle lenses has a hydrophily of 70%, it simultaneously achieves a permeability (Dk) four times higher than that of HEMA and twice as high as that of a material with 55% hydrophily.
ES70 is a non-ionic material. This means Lunelle lenses are resistant to deposits. Fewer lens deposits means better visual quality, improved comfort and the optimisation of oxygen supply throughout the life of the lens.
70% Water Content
Outstanding Oxygen Permeability
Composed of Non-ionic Polymers
All Day Comfort
Great Vision Throughout the Day
All Lunelle lens designs enable good mobility. This allows an excellent flow of tears between the lens and the eye and ensures optimal ocular health. This 'pumping' effect also contributes to a higher oxygen supply. When this is combined with ES70s high water content the metabolism of the eye remains practically unaffected, so patients can enjoy great comfort and vision all day.
ES70 Composition
| PMMA | Robust and transparent |
| PVP | Ensures a stable water content |