Adie Syndrome

Albinism, Ocular - The affected person has milk-white skin and hair, though the skin may be slightly pinkish in colour owing to underlying blood vessels. The iris of the eye appears pink, while the pupil itself appears red from light reflected by blood in the unpigmented choroid. Vision abnormalities such as astigmatism, nystagmus (rapid involuntary oscillation of the eye), and photophobia (extreme sensitivity to light) are common. Albinos sunburn very easily and are thus more susceptible to skin cancers.

 Amblyopia - Dimness of vision that may be gradual or sudden in onset and may affect both eyes or one. It may be transient or permanent and can develop into blindness.

Dimness of vision that may be gradual or sudden in onset and may affect both eyes or one. It may be transient or permanent and can develop into blindness.

 Aniridia

 Anophthalmos

 Aphakia - Absence of the eye's crystalline lens.

Absence of the eye's crystalline lens.

 Astigmatism - A defect in the eye or in a lens caused by a deviation from spherical curvature, which results in distorted images, as light rays are prevented from meeting at a common focus.

A defect in the eye or in a lens caused by a deviation from spherical curvature, which results in distorted images, as light rays are prevented from meeting at a common focus.

 Blepharitis - Inflammation of the eyelids, most commonly occurring in association with seborrhea, a skin disorder arising from overactivity of the sebaceous glands. In sebaceous blepharitis, also called squamous blepharitis, the margins of the lids are red and irritated, with greasy scales clinging to the bases of the eyelashes. The inflammation extends onto the lining of the lids.

Inflammation of the eyelids, most commonly occurring in association with seborrhea, a skin disorder arising from overactivity of the sebaceous glands. In sebaceous blepharitis, also called squamous blepharitis, the margins of the lids are red and irritated, with greasy scales clinging to the bases of the eyelashes. The inflammation extends onto the lining of the lids.

 Blepharoptosis

 Blepharospasm - Involuntary tight closure of the eyelids.

Involuntary tight closure of the eyelids.

 Best Disease ( --> Macular Degeneration)

 Brown Syndrome( --> Strabismus) - Also called Squint, or Heterotropia, failure of the eyes to align properly on the object toward which a person seeks to direct his gaze.

Also called Squint, or Heterotropia, failure of the eyes to align properly on the object toward which a person seeks to direct his gaze.

 Cataract - A medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision.

A medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision.

 Coloboma - A congenital malformation of the eye causing defects in the lens, iris, or retina.

A congenital malformation of the eye causing defects in the lens, iris, or retina.

 Chorioretinitis

 Chalazion - Also called Hordeolum, in medicine, infection of an eyelid gland. Two types are distinguished, the external and the internal sty. An internal sty is a staphylococcic infection of a meibomian gland, one of the modified sebaceous glands that lie close under the lining of the eyelids. These infections are more painful than is the external sty because they are pressed between the eyeball and the fibrous plate--called the tarsal plate--in the lid. The internal sty usually breaks through the lining of the lid, rather than the outer skin, when it discharges. This type of sty is sometimes called a chalazion, although the latter term is usually reserved for a painless swelling of the meibomian gland.

Also called Hordeolum, in medicine, infection of an eyelid gland. Two types are distinguished, the external and the internal sty. An internal sty is a staphylococcic infection of a meibomian gland, one of the modified sebaceous glands that lie close under the lining of the eyelids. These infections are more painful than is the external sty because they are pressed between the eyeball and the fibrous plate--called the tarsal plate--in the lid. The internal sty usually breaks through the lining of the lid, rather than the outer skin, when it discharges. This type of sty is sometimes called a chalazion, although the latter term is usually reserved for a painless swelling of the meibomian gland.

 Choroideremia

 Color Vision Defects

 Conjunctivitis - Inflammation of the conjunctiva, the delicate mucous membrane that lines the eyelids and covers the front part of the white of the eye--the sclera. The inflammation may be caused by an infection or by a chemical burn or mechanical injury, or it may be part of an allergic reaction.

Inflammation of the conjunctiva, the delicate mucous membrane that lines the eyelids and covers the front part of the white of the eye--the sclera. The inflammation may be caused by an infection or by a chemical burn or mechanical injury, or it may be part of an allergic reaction.

 Corneal Dystrophies

 Diabetic Retinopathy

 Diplopia - Perception of two images of a single object, most commonly caused by temporary or permanent paralysis of eye muscles.

Perception of two images of a single object, most commonly caused by temporary or permanent paralysis of eye muscles.

 Dry Eye Syndromes

 Ectropion - Sagging of the lower eyelid away from the eyeball. The condition sometimes is present in elderly persons as a result of relaxation of the lid's supporting structures. It causes tears fail to drain properly, and chronic conjunctivitis--inflammation of the mucous membrane lining the lids and covering part of the eyeball--may develop.

Sagging of the lower eyelid away from the eyeball. The condition sometimes is present in elderly persons as a result of relaxation of the lid's supporting structures. It causes tears fail to drain properly, and chronic conjunctivitis--inflammation of the mucous membrane lining the lids and covering part of the eyeball--may develop.

 Exfoliation Syndrome - Shedding of the surface cells.

Shedding of the surface cells.

 Eye Hemorrhage

 Entropion - Turning in of the border of the lower eyelid, a condition sometimes occurring in elderly persons.

Turning in of the border of the lower eyelid, a condition sometimes occurring in elderly persons.

 Eye Neoplasms

 Floaters - The appearance of many "floaters," however, may be associated with inflammation or bleeding in the eye.

The appearance of many "floaters," however, may be associated with inflammation or bleeding in the eye.

 Glaucoma - Disease caused by an increase in pressure within the eye as a result of blockage of the flow of aqueous humour, a watery fluid produced by the ciliary body.

Disease caused by an increase in pressure within the eye as a result of blockage of the flow of aqueous humour, a watery fluid produced by the ciliary body.

 Horner Syndrome - It causes interruption of the long sympathetic fibres passing from the brain stem to the pupil leads to drooping of the eyelid and a small pupil. This dissorder causes ptosis, occur in association with excessive contraction of the pupil and abnormally sunken eyes.

It causes interruption of the long sympathetic fibres passing from the brain stem to the pupil leads to drooping of the eyelid and a small pupil. This dissorder causes ptosis, occur in association with excessive contraction of the pupil and abnormally sunken eyes.

 Keratoconus - It is the name of a curious condition in which the central part of the cornea, normally spherical in shape, begins to bulge and protrude forward as a cone. The only symptom is deterioration of vision due to the irregular astigmatism caused by the changing corneal curvature.

It is the name of a curious condition in which the central part of the cornea, normally spherical in shape, begins to bulge and protrude forward as a cone. The only symptom is deterioration of vision due to the irregular astigmatism caused by the changing corneal curvature.

 Optic Atrophies, Hereditary - Degeneration of the optic (second cranial) nerve, which carries visual data from the retina of the eye to a relay station in the centre of the brain (the lateral geniculate body) for transmission to a cortical area at the back of the brain. The atrophy may be a hereditary defect (Leber's disease) affecting males, primarily between the ages of 15 and 25 years, and causing loss of central vision.Optic atrophy may also be caused by physical injury, as from a blow to the head; by glaucoma; by a tumour that presses on the nerve; by poisons such as wood alcohol, quinine, or arsenic; or by disease of the retina.

Degeneration of the optic (second cranial) nerve, which carries visual data from the retina of the eye to a relay station in the centre of the brain (the lateral geniculate body) for transmission to a cortical area at the back of the brain. The atrophy may be a hereditary defect (Leber's disease) affecting males, primarily between the ages of 15 and 25 years, and causing loss of central vision.Optic atrophy may also be caused by physical injury, as from a blow to the head; by glaucoma; by a tumour that presses on the nerve; by poisons such as wood alcohol, quinine, or arsenic; or by disease of the retina.

 Optic Neuritis - Inflammation of the optic (second cranial) nerve.

Inflammation of the optic (second cranial) nerve.

 Ophthalmoplegia - Also called EXTRAOCULAR MUSCLE PALSY, paralysis of the extraocular muscles, which control the movements of the eye and of the pupil. Double vision is the characteristic symptom and also some muscular symptoms.

Also called EXTRAOCULAR MUSCLE PALSY, paralysis of the extraocular muscles, which control the movements of the eye and of the pupil. Double vision is the characteristic symptom and also some muscular symptoms.

 Oculomotor Nerve Diseases

 Myopia - Also called NEARSIGHTEDNESS, visual defect in which the resting eye focuses the image of a distant object at a point in front of the retina, the light-sensitive layer of tissue that lines the back and sides of the eye.

Also called NEARSIGHTEDNESS, visual defect in which the resting eye focuses the image of a distant object at a point in front of the retina, the light-sensitive layer of tissue that lines the back and sides of the eye.

 Miller Fisher Syndrome

 Microphthalmos

 Macular Degeneration

 Leber's Hereditary Optic Neuropathy (--> Optic Atrophy, Hereditary) - Degeneration of the optic (second cranial) nerve. It may lead to the loss of central vision.

Degeneration of the optic (second cranial) nerve. It may lead to the loss of central vision.

 Lacrimal Duct Obstruction

 Keratitis - Inflammation of the cornea, the transparent portion of the eyeball that is in front of the iris and pupil.

Inflammation of the cornea, the transparent portion of the eyeball that is in front of the iris and pupil.

 Kearns Syndrome

 Iritis - Inflammation of the iris of the eye.

Inflammation of the iris of the eye.

 Hyphema

 Hyperopia - Also called FARSIGHTEDNESS, OR HYPERMETROPIA, visual defect in which the cornea and lens of the eye focus the image of the visual field at a point behind the retina (the light-sensitive layer of tissue lining the back and sides of the eye).

Also called FARSIGHTEDNESS, OR HYPERMETROPIA, visual defect in which the cornea and lens of the eye focus the image of the visual field at a point behind the retina (the light-sensitive layer of tissue lining the back and sides of the eye).

 Hordeolum - Infection of an eyelid gland.

Infection of an eyelid gland.

 Hermanski-Pudlak Syndrome

 Hemianopsia (Hemianopia) - Blindness in one-half of each of the visual fields is also encountered.

Blindness in one-half of each of the visual fields is also encountered.

 Gyrate Atrophy

 General Fibrosis Syndrome

 Optic Neuropathy, Ischemic - Ischemic neuropathies are those in which local or diffuse blood-vessel occlusion leads to damage of the Schwann cells. 

Ischemic neuropathies are those in which local or diffuse blood-vessel occlusion leads to damage of the Schwann cells. 

 Orbital Cellulitis - It is an inflammatory process involving the layer of tissue that separates the eye itself from the eyelid. These infections occur most commonly in children under three years of age and in older people with diabetes or other debilitating diseases. Symptoms are severe pain upon movement of the eye, redness and swelling of the sclera (outer membrane of the eyeball), and fever.

It is an inflammatory process involving the layer of tissue that separates the eye itself from the eyelid. These infections occur most commonly in children under three years of age and in older people with diabetes or other debilitating diseases. Symptoms are severe pain upon movement of the eye, redness and swelling of the sclera (outer membrane of the eyeball), and fever.

 Papilledema

 Fuchs' Endothelial Dystrophy ( --> Corneal Dystrophies)

 Retinal Vein Occlusion

 Nystagmus, Pathologic - Involuntary back and forth, up and down, or circular movement of the eyes. 

Involuntary back and forth, up and down, or circular movement of the eyes. 

 Presbyopia - Loss of ability to focus the eye sharply on near objects as a result of the decreasing elasticity of the lens of the eye.

Loss of ability to focus the eye sharply on near objects as a result of the decreasing elasticity of the lens of the eye.

 Retinitis Pigmentosa - Hereditary eye disease in which progressive degeneration of the retinal pigments leads to impairment of vision and, ultimately, to blindness.

Hereditary eye disease in which progressive degeneration of the retinal pigments leads to impairment of vision and, ultimately, to blindness.

 Scleritis - Inflammation of the sclera, the white of the eye. Symptoms are pain radiating from the eyes, which water and are sensitive to light.

Inflammation of the sclera, the white of the eye. Symptoms are pain radiating from the eyes, which water and are sensitive to light.

 Retinal Detachment - It is a condition in which the main part of the retina becomes separated from the pigment epithelium. This may follow an injury to the eye or a tumour; or inflammation of the underlying choroid.

It is a condition in which the main part of the retina becomes separated from the pigment epithelium. This may follow an injury to the eye or a tumour; or inflammation of the underlying choroid.

 Pterygium - Wing-shaped fold of membrane, an abnormal growth that develops from the inner or the outer (the nasal or the temporal) corner of the eye toward its centre; the growth obscures vision if it encroaches upon the pupil.

Wing-shaped fold of membrane, an abnormal growth that develops from the inner or the outer (the nasal or the temporal) corner of the eye toward its centre; the growth obscures vision if it encroaches upon the pupil.

 Stargardt Disease ( --> Macular Degeneration)

 Septo-Optic Dysplasia

 Strabismus - Also called Squint, or Heterotropia, failure of the eyes to align properly on the object toward which a person seeks to direct his gaze.

Also called Squint, or Heterotropia, failure of the eyes to align properly on the object toward which a person seeks to direct his gaze.

 Sty ( --> Hordeolum) - Infection of an eyelid gland.

Infection of an eyelid gland.

 Thygeson's Superficial Punctate Keratopathy

 Tolosa-Hunt Syndrome ( --> Ophthalmoplegia) - Also called EXTRAOCULAR MUSCLE PALSY, paralysis of the extraocular muscles, which control the movements of the eye and of the pupil.

Also called EXTRAOCULAR MUSCLE PALSY, paralysis of the extraocular muscles, which control the movements of the eye and of the pupil.

 Uveitis - Inflammation of the uvea, the middle coat of the eyeball, which is pigmented and contains blood vessels.

Inflammation of the uvea, the middle coat of the eyeball, which is pigmented and contains blood vessels.

 Trachoma - Chronic inflammatory disease of the eye caused by Chlamydia trachomatis, a bacterium-like microorganism that grows only within tissue cells of the infected host. The conjunctiva becomes thickened and roughened, and deformation may result. Extension of inflammation to the cornea occurs in varying degree; resultant scarring can lead to corneal opacity and blindness.

Chronic inflammatory disease of the eye caused by Chlamydia trachomatis, a bacterium-like microorganism that grows only within tissue cells of the infected host. The conjunctiva becomes thickened and roughened, and deformation may result. Extension of inflammation to the cornea occurs in varying degree; resultant scarring can lead to corneal opacity and blindness.

 White Dot Syndrome