Eye Occluder for Eye Exams

Item No.: PH4245-2
The eye occluder is molded from strong, lightweight ABS plastic, with an easy cleaning gloss finish.  Occluders are used to cover one eye during testing or treatment.
Description Review
Description

Details

Standard MOQ: 100 Units
Quantity/outer: 200pcs
Carton dimension: 38*38*26cm
Gross weight: 12 kgs
Size:
17.2cmx18.2cm
Material:
ABS
N.W.:
45g/pc
Colors:
PMS matched
Packing:
OPP bag
Logo:
silk screen printing
Certification: ISO13485,FDA, SGS
Payment Term: 30% deposit paid by TT before production, 70% balance before shipment.
Payment Methods: Bank TT, Western Union, Paypal

 

➤ What is an eye occluder?

An eye occluder is an opaque disk with one or more small holes through it, used by ophthalmologists, orthoptists, and optometrists to test visual acuity. The occluder is a simple way to focus light, as in a pinhole camera, temporarily removing the effects of refractive errors such as myopia. Because light passes only through the center of the eye's lens, defects in the shape of the lens (errors of refraction) have no effect while the occluder is used.

 

➤ What does the pinhole occluder do?

The ophthalmologist, orthoptist, or optometrist can estimate the maximum improvement in a patient's vision that can be attained by lenses to correct errors of refraction. This can be used to distinguish visual defects caused by refractive error, which improve when the occluder is used, from other problems, which do not. The pinhole occluder can also be used in testing visual acuity in mydriatic patients. In this case, the pinhole occluder compensates for the inability to contract the iris assisting the eye in obtaining a retinal projection similar to that of a non-cycloplegic eye.

 

➤ How to use the eye occluder?

Squinting and looking through a tiny hole made with a finger works similarly to a pinhole occluder, by blocking light through the outer parts of the eye's lens. An improvised pinhole has a similar but better effect. The same principle has also been applied as an alternative to corrective lenses: a screen of pinholes is mounted on an eyeglass frame and worn as pinhole glasses.

 

➤ Differential diagnosis :

pinhole worsen vision: Macular diseases, central lens opacities

Vision static with pinhole: Amblyopia

 

 

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