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Ophthalmology

 

Recommended eyepiece

 

prescription

 

 

 

 

SPHERICAL

 

Power

Code

 

+3.0 – +2.5

 

+2

3054437

 

+2.25 – +1

 

+0.5

3054434

 

+0.75 – -0.5

 

-1(std)

3054440

 

-0.75 – -1.5

 

-2

3054431

 

-1.75 – -2.5

 

-3

3054428

 

-2.75 – -3.75

 

-4

3054425

 

Please note that the eyepiece, including the correction glass holder, is constructed from a rubber coated plastic material to minimise the risk of scratching eyeglass lenses.

Viewfinder eyepiece selection

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The table below provides the choice of correction eyepieces available in connection with an eyeglass prescription. Firstly, decide which eye you would normally use for viewing. Then check your prescription bearing in mind that in ophthalmic terms O.D stands for the right eye and O.S stands for the left eye. In the table, read off the appropriate eyepiece that is alongside your prescription figures.

If your cylindrical eyeglass prescription is more than

0.5dioptres, it is recommended that you always wear your eyeglasses for viewing and focusing.

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