Diseases of the eye affect the eye either directly or as part of a system wide problem. They include the following: glaucoma, cataract, amblyopia, diabetic retinopathy, uveitis, retinal detachment and strabismus.

Amblyopia also commonly known as lazy eye is poor vision in undeveloped eyes that is it occurs in the eye that did not develop normal eye sight as from childhood. It mainly affects one eye, it is caused by; misaligned eyes that is crossed eyes, refractive error and cloudiness of the eye tissue. Treatment is via the following methods: patching the strong eye for weeks and the kid uses the weak eye, glasses are used to correct focusing errors, lenses or eye drops may be used to treat blurred vision, these methods are used in order to make the amblyopic eye strong.

Cataract is characterised as a clouding at the eyes lens and is caused by; use of medications like steroids, eye injury, diseases like diabetes, long term exposure to ultra-violet rays and also family history. It leads to double vision, decreased colour sensitivity and it is also a leading cause of blindness in Australia. Treatment is via surgery which involves the removal of the cloud at the eye lens and an artificial lens is implanted. Three types of surgery are used and they are: posterior, anterior and iris supported implants.

Glaucoma is among the common diseases of the eye that causes increased intraocular pressure that is the eye gets filled with the clear fluid (aqueous humour). This fluid does not drain normally hence the disease results, their two main types of glaucoma that is; open angle and the closed angle glaucoma. It leads to blurred vision, severe eye pain and episode of seeing flashes of light; this can be treated via surgery mainly laser and filtering surgery, eye drops may also be used to lower the intraocular pressure.

Uveitis is among the diseases of the eye that is characterized as an inflammation of part or the whole uvea, the uvea is made up of the choroid, iris and ciliary body. It is severe and is treated via use of cycloplegics like atropine and anti-inflammatory drugs like corticosteroids.

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