Types of Drugs used in Ophthalmology
In pharmacology, a pharmaceutical drug, also called a medication or medicine, is a chemical substance used to treat, cure, prevent or diagnose a disease or to promote well- being. …
WHAT KIND OF OBSERVATION DURING FUNDUS EXAMINATION
Funduscopic examination is a routine part of every doctor’s examination of the eye, not just the ophthalmologist’s. It consists exclusively of inspection. One looks through the ophthalmoscope which is simply…
Aqueous Humour
Aqueous humour is a clear, watery fluid that fills the anterior and posterior chambers of the eye. It is produced by the ciliary processes of the ciliary body, a structure…
Uses of OCT
Optical Coherence Tomography is a non invasive imaging test. OCT uses light waves to take cross section pictures of the retina. With OCT, an optometrists can see each of the…
PRINCIPLE OF LENSOMETER
Lensometry is an ophthalmic procedure that helps a clinician to either to assess the: Spherical power. Cylinder power. Cylinder axis. Optical center. Prism reference point. Adds in bi-, tri- and…
OCULAR MANIFESTATION OF SYSTEMIC INFECTIONS
The eyes are a window to the soul, and they can also provide important clues to the presence of systemic infections. Many infections can cause ocular manifestations, which are changes…
OPTICS OF THIN LENS
In optics, a thin lens is a lens with a thickness (distance along the optical axis between the two surfaces of the lens) that is negligible compared to the radii…
Methods of taking visual acuity in younger children
The testing of visual acuity in infants and children has been treated separately from the testing of adults because infants and children often can’t be tested with the same materials…
Anti-Reflection Coating: The Optometrist & Perspective
Anti reflection coatings minimize the reflection of one or many wavelengths and are typically used on the surface of lenses so that less light is lost. A simple coating can…
What is spherical aberration
Spherical aberration is an optical aberration that occurs when all incoming light rays after passing through spherical surface end up focusing at different points . Lights rays that strike a…
- Go to the previous page
- 1
- …
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- …
- 43
- Go to the next page