Lens Coating
Lens coating is a layer of material applied on the surface of a lens to enhance its appearance, performance or durability
Antireflective Coating
Antireflective coating is a type of lens coating applied on a lens to cut off back surface reflections. This makes the eye more visible and reduces glare from digital screen, headlamps of oncoming vehicles, and street lamps.
Trabecular Meshwork
The trabecular meshwork is the porous part of the drainage system of the eye located at the angle where the cornea and the iris meet, known as filtration angle.
Hirschberg Test
Hirschberg corneal reflex test is also known as the Hirschberg test. This test is done to determine if squint (strabismus) is present.
Cover and Uncover Test
This test is used to determine whether you have squint (tropia) or phoria (latent deviation) and also measures the degree of deviation using a prism. It is usually done at far (6metres) and at near (40cm). The test requires that you focus on an object in front of you while the eye doctor covers each
Tropia
Tropia is a misalignment of the eyes when looking at an object. It is an apparent deviation of the eye. It is also known as strabismus, squint or crossed eyes.
Retinoblastoma
Retinoblastoma is a rare type of eye cancer most common in children. It develops in the cells of the retina and spreads to nearby tissues in the eye.
Dilation
Dilation, also known as pupil dilation is the widening of the pupil of the eye. It is a normal response of the eye in a poorly illuminated environment. The widening of the pupil allows more light to enter the eye so that vision is improved under dim light.
Phoropter
A phoropter is an optical device used to measure refractive errors and determine lens prescription most appropriate for eye care patients. It is also known as a refractor.
Refraction
Refraction is a test done to assess the type and degree of refractive errors. There are two types namely objective refraction and subjective refraction.