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GR-TL36 - US Ophthalmic
GR-TL36 - US Ophthalmic
GR-TL36 - US Ophthalmic
GR-TL36 - US Ophthalmic
GR-TL36 - US Ophthalmic
GR-TL36 - US Ophthalmic
GR-TL36 - US Ophthalmic
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  1. Students/ GR-TL36

Gilras Trial Lens Set GR-TL36



The Gilras GR-TL36 Trial Lenses Set has 232 glass lens pieces in plus and minus cylinders mounted in color-coded plastic rings. It is a complete set of trial lenses that will allow you to perform better testing on your aging and low vision patients. Cylinder and prismatic lenses in square shape fits the mounts completely to help prevent rotation. Each set is handcrafted with optically true lens centers. This classic form of refraction enhances prescription accuracy for low vision patients in particular, offering accurate vertex distance, which is very helpful for high refractive error patients. Similarly, any patient who relies on eccentric viewing and needs to move their eyes or head to see around a scotoma can greatly benefit from trial frame refracting. The GR-TL36 includes a wood removable tray with metal handles for ease of use and has diopter indicators. The case is made of aluminum with leatherette cover with two combination locks for security.


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Description

Trial Lenses Set GR-TL36 Gilras - US Ophthalmic
 Color Coded Rings
Lenses are easily identifiable. Minus lens rings are red, plus lens rings are black and accessory lenses are grey.

Trial Lenses Set GR-TL36 Gilras - US Ophthalmic
Spheres
The kit includes both concave (-) and convex (+) spherical lenses to examine myopia, hyperopia and presbyopia.


Cylinders
Examine astigmatism with the plus and minus cylindrical lenses included in the GR-TL36.


Trial Lenses Set GR-TL36 Gilras - US Ophthalmic
Prisms
You can perform prism testing and training with the GR-TL36 Trial Lenses.


Frosted Lens
Use this semi-transparent cover lens for babies or outside of the room as an occluder.


Slit Lens
Examine astigmatism by turning this lens in front of the eye.


Color Lenses
The GR-TL36 includes red, green, blue, yellow and dark brown lenses for use in examining color sensitivity. The lenses are especially helpful for use with cataract patients as well as in color blindness testing.


Additional Lenses
Maddox, plano, occluder and pin hole lenses are also included in the GR-TL36.


Trial Lenses Set GR-TL36 Gilras - US Ophthalmic
Aluminum Security Case
The GR-TL36 case is made of aluminum with leatherette cover with two combination locks for security.

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Details Specifications

Concave(-) Sphere Convex(+) Sphere Concave(-) Cylinder Convex(+) Cylinder Prism Cylinder
List pcs List pcs List pcs List pcs List pcs List pcs List pcs Specification pcs
0.12 2 6.00 2 0.12 2 6.00 2 0.12 2 0.12 2 1.00 1 Maddox 1
0.25 2 6.50 2 0.25 2 6.50 2 0.25 2 0.25 2 2.00 1 Frosted lens 1
0.50 2 7.00 2 0.50 2 7.00 2 0.50 2 0.50 2 3.00 1 Pin hole 2
0.75 2 8.00 2 0.75 2 8.00 2 0.75 2 0.75 2 4.00 1 Occluder 2
1.00 2 9.00 2 1.00 2 9.00 2 1.00 2 1.00 2 5.00 1 Slit 1
1.25 2 10.00 2 1.25 2 10.00 2 1.25 2 1.25 2 6.00 1 Red filter lens 1
1.50 2 11.00 2 1.50 2 11.00 2 1.50 2 1.50 2 7.00 1 Green filter lens 1
1.75 2 12.00 2 1.75 2 12.00 2 1.75 2 1.75 2 8.00 1 Plane lens 1
2.00 2 13.00 2 2.00 2 13.00 2 2.00 2 2.00 2 9.00 1    
2.25 2 14.00 2 2.25 2 14.00 2 2.25 2 2.25 2 10.00 1    
2.50 2 15.00 2 2.50 2 15.00 2 2.50 2 2.50 2        
2.75 2 16.00 2 2.75 2 16.00 2 2.75 2 2.75 2        
3.00 2 18.00 2 3.00 2 18.00 2 3.00 2 3.00 2        
3.25 2 20.00 2 3.25 2 20.00 2 3.25 2 3.25 2        
3.50 2     3.50 2     3.50 2 3.50 2        
3.75 2     3.75 2     4.00 2 4.00 2        
4.00 2     4.00 2     4.50 2 4.50 2        
4.50 2     4.50 2     5.00 2 5.00 2        
5.00 2     5.00 2     6.00 2 6.00 2        
5.50 2     5.50 2                    

Spheres
The curved surface forms a part of the spherical lens and the dioptric power on all axis positions is the same. After passing through the lens, the light beam focuses on one point (or a virtual focus). Spherical lenses includes concave lenses (-) and convex lenses (+), which are used to examine myopia, hyperopia and presbyopia.

Cylinders
The curved surface forms a part of the cylindrical lens and the dioptric power on all axis positions is not the same. After passing through the lens, the light beam focuses into a straight line (or a broken line). Cylindrical lenses consists of concave cylindrical lenses and convex cylindrical lenses that are used to examine astigmatism.

Prisms
The tangent plane of a prismatic lens is wedge shaped. After passing the lens, the light beam bends to the bottom and the object shifts to the edges. This kind of lens is used to test the ocular muscle, slant and invisible slant as well as to train the ocular muscle.

Occluder
This is a kind of opaque lens for covering the uninspected eye of the examinee in a dark room.

Frosted Lens
This is a kind of semi-transparent cover lens and mainly used for babies or used outside of the room as an occluder.

Slit
In its center there is a slit, through which light can pass while it can not pass through any other part of the lens. By turning this lens in front of the eye, astigmatism can be examined as vision changes for better or worse at a certain axis position, on the other hand, it proves no existence of astigmatism if vision does not change.

Plano lens
This is a kind of transparent plain lens and the light never bends when it passes through the lens.
It is used to examine false blindness.

Color Lens
These lenses include different colors: red, green, blue, yellow and dark brown and are used to examine color sensitivity. For patients whose dioptric image is muddy (e.g a patient with cataract), the red or green lens is suitable. It also can be used for re-inspection and examination of color blindness.

Maddox
On its surface, there is one row of bars through which a spot of light can pass, and then bends into a line to the direction, which is perpendicular to the glass bars.

Pin hole
In its center, there is a small hole, through which a light beam passes to form an artificial pupil.
It is used to improve diopter especially the astigmatism after wearing it.
Details Specifications

Concave(-) Sphere Convex(+) Sphere Concave(-) Cylinder Convex(+) Cylinder Prism Cylinder
List pcs List pcs List pcs List pcs List pcs List pcs List pcs Specification pcs
0.12 2 6.00 2 0.12 2 6.00 2 0.12 2 0.12 2 1.00 1 Maddox 1
0.25 2 6.50 2 0.25 2 6.50 2 0.25 2 0.25 2 2.00 1 Frosted lens 1
0.50 2 7.00 2 0.50 2 7.00 2 0.50 2 0.50 2 3.00 1 Pin hole 2
0.75 2 8.00 2 0.75 2 8.00 2 0.75 2 0.75 2 4.00 1 Occluder 2
1.00 2 9.00 2 1.00 2 9.00 2 1.00 2 1.00 2 5.00 1 Slit 1
1.25 2 10.00 2 1.25 2 10.00 2 1.25 2 1.25 2 6.00 1 Red filter lens 1
1.50 2 11.00 2 1.50 2 11.00 2 1.50 2 1.50 2 7.00 1 Green filter lens 1
1.75 2 12.00 2 1.75 2 12.00 2 1.75 2 1.75 2 8.00 1 Plane lens 1
2.00 2 13.00 2 2.00 2 13.00 2 2.00 2 2.00 2 9.00 1    
2.25 2 14.00 2 2.25 2 14.00 2 2.25 2 2.25 2 10.00 1    
2.50 2 15.00 2 2.50 2 15.00 2 2.50 2 2.50 2        
2.75 2 16.00 2 2.75 2 16.00 2 2.75 2 2.75 2        
3.00 2 18.00 2 3.00 2 18.00 2 3.00 2 3.00 2        
3.25 2 20.00 2 3.25 2 20.00 2 3.25 2 3.25 2        
3.50 2     3.50 2     3.50 2 3.50 2        
3.75 2     3.75 2     4.00 2 4.00 2        
4.00 2     4.00 2     4.50 2 4.50 2        
4.50 2     4.50 2     5.00 2 5.00 2        
5.00 2     5.00 2     6.00 2 6.00 2        
5.50 2     5.50 2                    

Spheres
The curved surface forms a part of the spherical lens and the dioptric power on all axis positions is the same. After passing through the lens, the light beam focuses on one point (or a virtual focus). Spherical lenses includes concave lenses (-) and convex lenses (+), which are used to examine myopia, hyperopia and presbyopia.

Cylinders
The curved surface forms a part of the cylindrical lens and the dioptric power on all axis positions is not the same. After passing through the lens, the light beam focuses into a straight line (or a broken line). Cylindrical lenses consists of concave cylindrical lenses and convex cylindrical lenses that are used to examine astigmatism.

Prisms
The tangent plane of a prismatic lens is wedge shaped. After passing the lens, the light beam bends to the bottom and the object shifts to the edges. This kind of lens is used to test the ocular muscle, slant and invisible slant as well as to train the ocular muscle.

Occluder
This is a kind of opaque lens for covering the uninspected eye of the examinee in a dark room.

Frosted Lens
This is a kind of semi-transparent cover lens and mainly used for babies or used outside of the room as an occluder.

Slit
In its center there is a slit, through which light can pass while it can not pass through any other part of the lens. By turning this lens in front of the eye, astigmatism can be examined as vision changes for better or worse at a certain axis position, on the other hand, it proves no existence of astigmatism if vision does not change.

Plano lens
This is a kind of transparent plain lens and the light never bends when it passes through the lens.
It is used to examine false blindness.

Color Lens
These lenses include different colors: red, green, blue, yellow and dark brown and are used to examine color sensitivity. For patients whose dioptric image is muddy (e.g a patient with cataract), the red or green lens is suitable. It also can be used for re-inspection and examination of color blindness.

Maddox
On its surface, there is one row of bars through which a spot of light can pass, and then bends into a line to the direction, which is perpendicular to the glass bars.

Pin hole
In its center, there is a small hole, through which a light beam passes to form an artificial pupil.
It is used to improve diopter especially the astigmatism after wearing it.

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