The appropriate lens power is essential when performing perimetry. The Luxvision TL-68 Cylindrical Lens Kit (-) offers 56 spherical lenses plus 12 negative cylinders to help you obtain reliable visual fields and artifact-free results. These full-aperture designs are handcrafted with optically true centers. Each glass lens is encapsulated in a metal ring and comes in a synthetic leather case for safe and convenient storage.
Available Options:
Trial Frame Not Included
Includes concave (-) and convex (+) lenses with powers ranging from ±0.25D to ±16.00D. Enables precise perimetry in patients with myopia, hyperopia, and presbyopia.
Powers from -0.25D to -5.00D providing additional flexibility in patients with astigmatism. Ensures reliable visual fields and artifact-free results.
Handcrafted lenses with optically precise centers. Each glass lens is mounted in a metal rim for enhanced durability.
Includes a faux leather case that protects the lenses during transport and storage. Facilitates organization and convenient access to the complete set.
Spheres
The kit includes both concave (-) and convex (+) spherical lenses for testing patients with myopia, hyperopia, and presbyopia. Powers range from ± 0.25 D to ± 16.00 D.
Cylinders
Achieve the additional flexibility you need when examining patients with astigmatism. In addition to the spherical set, the Luxvision TL-68 negative (-) cylinder lens kit offers 12 negative cylinders that help you obtain reliable visual fields and artifact-free results. Powers range from -0.25 D to -5.00 D.
Safety Case
The TL-68 (-) cylinder lens set is offered in a synthetic leather case for safe and convenient storage.
| + Spheres (one each) | − Spheres (one each) | + or − Cylinders (one each) |
|---|---|---|
| 16.00 | 16.00 | — |
| 14.00 | 14.00 | — |
| 13.00 | 13.00 | 5.00 |
| 12.00 | 12.00 | 4.50 |
| 11.00 | 11.00 | 4.00 |
| 10.00 | 10.00 | 3.50 |
| 9.00 | 9.00 | 3.00 |
| 8.00 | 8.00 | 2.50 |
| 7.00 | 7.00 | 2.00 |
| 6.50 | 6.50 | 1.50 |
| 6.00 | 6.00 | 1.00 |
| 5.50 | 5.50 | 0.75 |
| 5.00 | 5.00 | 0.50 |
| 4.50 | 4.50 | 0.25 |
| 4.00 | 4.00 | — |
| 3.50 | 3.50 | — |
| 3.00 | 3.00 | — |
| 2.75 | 2.75 | — |
| 2.50 | 2.50 | — |
| 2.25 | 2.25 | — |
| 2.00 | 2.00 | — |
| 1.75 | 1.75 | — |
| 1.50 | 1.50 | — |
| 1.25 | 1.25 | — |
| 1.00 | 1.00 | — |
| 0.75 | 0.75 | — |
| 0.50 | 0.50 | — |
| 0.25 | 0.25 | — |
The curved surface is part of the spherical lens, and the dioptric power is equal in all axis positions. After passing through the lens, the light beam converges at a single point (or virtual focus). Spherical lenses include concave (−) and convex (+) lenses, and are used to examine myopia, hyperopia, and presbyopia.
The curved surface is part of the cylindrical lens, and the dioptric power is not equal in all axis positions. After passing through the lens, the light beam converges along a straight line (or a broken line). Cylindrical lenses include concave and convex versions, used to examine astigmatism.
