Accommodative Dysfunction: An eye focusing problem that is unrelated to aging changes in the lens of the eye.

Astigmatism: A vision condition that causes blurred vision due either to football shape of the cornea, the clear front cover of the eye, or sometimes the curvature of the lens inside the eye.

Blepharitis: An inflammation of the eyelids and eyelashes causing red, irritated, itchy eyelids and the formation of dandruff like scales on eyelashes.

Cataract: A cloudy or opaque area in the normally clear lens of the eye.

Chalazion: A slowly developing lump that forms due to blockage and swelling of an oil gland in the eyelid.

Color Vision Deficiency: The inability to distinguish certain shades of colors or, in more severe cases, see colors at all.

Computer Vision Syndrome: A group of eye and vision-related problems that result from prolonged computer use.

Conjunctivitis: An 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 Insufficiency: An eye coordination problem in which an eye tends to drift outward while trying to read or do close work.

Corneal Abrasion: A cut or scratch on the cornea, the clear front window of the eye.

Crossed Eyes: A condition in which an eye turns inward more than it should while the other is still aiming at what you intended to look at.

Diabetic Retinopathy: A condition occurring in persons with diabetes, which causes progressive damage to the retina, the light sensitive lining at the back of the eye.

Dry Eye: A condition in which there is an insufficient tear film to lubricate and protect the front surface of the eye.

Farsightedness: A vision condition in which distant objects are usually seen clearly, but close objects do not come into proper focus. Light is focusing behind the eye instead of on the back of the eye.

Floaters & Spots: The 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. Abnormally high pressure in the eye is considered the current cause.

Hordeolum: See Sty

Hyperopia: See Farsightedness

Keratitis: An inflammation or infection of the cornea, the clear front cover of the eye.

Keratoconus: An eye disorder causing progressive thinning and bulging of the cornea, the clear front window of the eye.

Lazy Eye: The loss or lack of development of clear vision in just one eye. Its not due to an eye health problem, and eyeglasses or contact lenses cant fully correct the reduced vision caused by lazy eye.

Learning-related Vision Problems: Vision disorders that interfere with reading and learning.

Macular Degeneration: An eye disease affecting the macula, the center of the light sensitive retina at the back of the eye, causing loss of central vision.

Myopia: See Nearsightedness

Nearsightedness: A vision condition in which you can see close objects clearly, but objects farther away are blurred. Light is focusing in front of the back surface of the eye instead of on the retinal surface.

Nystagmus: A vision condition in which the eyes make repetitive, uncontrolled shaky movements, often resulting in reduced vision.

Ocular Allergies: The abnormal response of sensitive eyes to contact with allergens and other irritating substances.

Ocular Hypertension: An 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 Migraine: The aura phase of a classical migraine but without the headache.

Pinquecula: An abnormal growth of tissue on the conjunctiva, the clear membrane that covers the white of the eye.

Presbyopia: An age-related vision condition in which there is a gradual loss of the eyes ability to focus on near objects.

Pterygium: An 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. A ptrerygium needs to be watched. If it grows to close to the center of the cornea it needs to be removed.

Ptosis: A drooping of the upper eyelid. Retinal Detachment A tearing or separation of the retina, the light sensitive lining at the back of the eye, from the underlying tissue.

Retinitis Pigmentosa: A 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.

Retinoblastoma: A rare type of eye cancer occurring in young children that develops in the retina, the light sensitive lining at the back of the eye.

Strabismus: A condition in which the eyes are not aligned together. One eye either turns inward or outward more than it should. The other is still aiming properly.

Sty: An infection of an oil gland in the eyelid.
Subconjunctival Hemorrhage: An accumulation of blood underneath the conjunctiva, the clear membrane covering the white part of the eye.

Uveitis: An inflammation of one or more of the structures that make up the middle layer of the eye called the uvea.