Corneal Topography
Topography is evaluated using Placido disk patterns or mires reflected off of the tear film of the anterior cornea and converted to color scales. Because the image is generated off…
WHY IS FOGGING TEST REQUIRED IN REFRACTION
BENEFITS AND LIMITATIONS: Fogging test with plus lenses is a crucial procedure in the field of refraction, particularly in determining the accurate prescription for individuals with latent (masked) hyperopia as…
Van Herrick Technique
The Van Herrick technique is a quick and easy way to estimate anterior chamber depth, which allows grading of patients according to the likelihood of having primary acute closed-angle glaucoma.…
Discuss Different types of Congenial cataract
Congenital cataracts are a lens opacity that is present at birth. Congenital cataracts occur in a broad range of severity. Some lens opacities do not progress and are visually insignificant,…
Explain About different types of frames material
The frame of glasses typically consists of two main parts: the front frame, which holds the lenses, and the temples (or arms), which extend back over the ears to keep…
Describe about Pre operative & post operative compliance of pterygium surgery
Pterygium is a relatively common ocular surface disease. The clinical aspects and the treatment options have been studied since many years ago, but many uncertainties still exist. The core pathologic…
POTENTIAL ACUITY METER
The Potential acuity meter was introduced by Guyton and Minkowski in 1980. It is a small device that mounts on a slit lamp and projects on an image of a…
A Brief idea about Trial lens box & Accessories
Mainly before uses the trial lens box & accessories should be know what is the things? how to uses the accessories? How to works? Why uses the accessories. It is…
Ocular Rigidity
Ocular rigidity refers to the stiffness or resistance of the eyeball to deformation. It’s a measure of the eye’s ability to maintain its shape when subjected to external forces, such…
POLARIZED LENSES
Polarized lenses is a optical technology, designed to enhance visual clarity and comfort by reducing glare. These lenses are particularly beneficial for outdoor enthusiasts and drivers, as they reduce the…