Sylva Eye Doctor

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“Lift up your eyes on high”
Isaiah 40:26

Eye Care Glossary

Glossary of All Eye & Vision Conditions


Accommodative DysfunctionAn eye focusing problem that is unrelated to aging changes in the lens of the eye.
AmblyopiaSee Lazy Eye
AstigmatismA vision condition that causes blurred vision due either to the irregular shape of the cornea, the clear front cover of the eye, or sometimes the curvature of the lens inside the eye.
BlepharitisAn inflammation of the eyelids and eyelashes causing red, irritated, itchy eyelids and the formation of dandruff like scales on eyelashes.
CataractA cloudy or opaque area in the normally clear lens of the eye.
ChalazionA slowly developing lump that forms due to blockage and swelling of an oil gland in the eyelid.
Color Vision DeficiencyThe inability to distinguish certain shades of colors or, in more severe cases, see colors at all.
Computer Vision SyndromeA group of eye and vision-related problems that result from prolonged computer use.
ConjunctivitisAn inflammation or infection of the conjunctiva, the thin transparent layer of tissue that lines the inner surface of the eyelid and covers the white part of the eye.
Convergence InsufficiencyAn eye coordination problem in which the eyes have a tendency to drift outward when reading or doing close work.
Corneal AbrasionA cut or scratch on the cornea, the clear front cover of the eye.
Crossed EyesA condition in which both eyes do not look at the same place at the same time.
Diabetic RetinopathyA condition occurring in persons with diabetes, which causes progressive damage to the retina, the light sensitive lining at the back of the eye.
Dry EyeA condition in which there are insufficient tears to lubricate and nourish the eye.
FarsightednessA vision condition in which distant objects are usually seen clearly, but close objects do not come into proper focus.
Floaters & SpotsThe shadowy images that are seen moving in your field of vision caused by particles floating in the fluid that fills the inside of the eye.
Glaucoma

A group of disorders leading to progressive damage to the optic nerve, and is characterized by loss of nerve tissue resulting in loss of vision.

HordeolumSee Sty
HyperopiaSee Farsightedness
KeratitisAn inflammation or infection of the cornea, the clear front cover of the eye.
KeratoconusAn eye disorder causing progressive thinning and bulging of the cornea, the clear front cover of the eye.
Lazy EyeThe loss or lack of development of clear vision in just one eye. It is not due to eye health problems and eyeglasses or contact lenses can’t fully correct the reduced vision caused by lazy eye.
Learning-related Vision ProblemsVision disorders that interfere with reading and learning.
Macular DegenerationAn eye disease affecting the macula, the center of the light sensitive retina at the back of the eye, causing loss of central vision.
Migraine with AuraSee Ocular Migraine
MyopiaSee Nearsightedness
NearsightednessA vision condition in which you can see close objects clearly, but objects farther away are blurred.
NystagmusA vision condition in which the eyes make repetitive, uncontrolled movements, often resulting in reduced vision.
Ocular AllergiesThe abnormal response of sensitive eyes to contact with allergens and other irritating substances.
Ocular HypertensionAn increase in the pressure inside the eye above the range considered normal, without any detectable changes in vision or damage to the structures of the eye.
Ocular MigraineA type of severe headache accompanied by various visual symptoms.
PinqueculaAn abnormal growth of tissue on the conjunctiva, the clear membrane that covers the white of the eye.
PresbyopiaAn age-related vision condition in which there is a gradual loss of the eye’s ability to focus on near objects.
PterygiumAn abnormal growth of tissue on the conjuctiva, the clear membrane that covers the white of the eye, and the adjacent cornea, the clear front surface of the eye.
PtosisA drooping of the upper eyelid.
Retinal DetachmentA tearing or separation of the retina, the light sensitive lining at the back of the eye, from the underlying tissue.
Retinitis PigmentosaA group of inherited disorders of the retina, the light sensitive lining at the back of the eye, which cause poor night vision and a progressive loss of side vision.
RetinoblastomaA rare type of eye cancer occurring in young children that develops in the retina, the light sensitive lining at the back of the eye.
StrabismusSee Crossed Eyes
StyAn infection of an oil gland in the eyelid.
Subconjunctival HemorrhageAn accumulation of blood underneath the conjunctiva, the clear membrane covering the white part of the eye.
UveitisAn inflammation of one or more of the structures that make up the middle layer of the eye called the uvea.