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- Hard Contact Lenses – HOYA Hard / EX
HOYA Hard / EX
High grade lenses offering a sharp field of vision
The high vision correction ability of the EX series is unique to hard lenses.
EX lenses produce a clear and sharp field of vision.
A higher dimension of balance between high oxygen permeability and water leakage properties
The entire lens exhibits high oxygen permeability to allow ample oxygen to pass through. As minimal strain is placed on the cornea, they can be comfortably worn all day. Moreover, on the advice of an ophthalmologist, the lenses can be continuously worn for up to one week. Gentle on the eyes, they also offer a natural sensation of usage for first-time users.
Advanced lens design that is gentle on the eyes
Due to the design of the shape for the lens periphery, EX lenses relieve the feeling of pressure on the eyes and the sensation that something is in one’s eye.
The design produces a smoother lacrimal fluid exchange, maintaining a fresh sensation of usage that is gentle on the eyes.
| Lens Colors | EX is available in light blue, while EX(G) is available in light green. |
|---|---|
| Duration of Use | The lenses can be worn all day, and worn continuously for up to seven days on the advice of an ophthalmologist. |
| Vision Correction | Correction for near-sightedness, far-sightedness and astigmatism |
Spec list
| Production method |
Lathe cut |
Thickness at center |
0.15mm(-3.00D) 0.23mm(+3.00D) |
|---|---|---|---|
| Material | Fluorine-containing methacrylate compound, silicon-containing methacrylate compound, methacrylic acid, alkyl methacrylate-based compound, silicon-containing acrylate compound and acrylamide compound | ||
| Dk value *1 | 125 (ISO Guide:73) |
Dk/L *2 (0.15mm) |
83.3 (ISO Guide:48.7) |
| Color | Hoya hard / EX Blue Hoya hard / EX (G) Green |
||
| Lens marking |
Not available |
Surface treatment |
Not available |
| Ultraviolet absorber |
Not available |
Rear design |
Spherical surface |
| CT(S-3.00D) | 0.15mm | Lens diameter (DIA) |
7.5～9.3mm (0.1mmP) |
| Production range |
［BC］ 6.00～9.00mm（0.05mmP） ［P:S］ ＋25.00～－25.00D（0.25DP） |
||
*1 Unit : ×10-11(cm2/sec)・(mLO2/(mL×mmHg))
*2 Unit : ×10-9(cm/sec)・(mLO2/(mL×mmHg))