Laser Eye Surgery | Laser Eye Treatment | LaserEyeSurgery.co.uk » F (Field Analyser to Fovea)

Fovea

admin — Thu, 14 Jan 2010 17:40:20 +0000

The small area of the retina that provides the sharpest vision by allowing the light to fall directly onto the cones without having to pass through any retinal layers.

Focal Length

admin — Thu, 14 Jan 2010 17:39:47 +0000

The distance from the refracting (lens) or the reflecting (mirror) surface to the point of focus.

Floaters

admin — Thu, 14 Jan 2010 17:39:15 +0000

Floating particles within the vitreous often appearing like a moving thread. A sudden appearance or increase should be investigated.

Flashing Lights

admin — Thu, 14 Jan 2010 17:38:14 +0000

Seen even when the eyes are closed. Often quite normal in an aging eye as the vitreous pulls away from the retina. Can last for several months but should be investigated in case the retina is torn.

Field Analyser

admin — Thu, 14 Jan 2010 17:37:39 +0000

Instrument which requires the patient to inform the operative of their ability or not to see numerous images in different positions on a screen to assess the patient’s field of view. Used for the early diagnosis and treatment of the diseases that cause field loss such as glaucoma.