Cataract
by Buthainah Al-masaeed
1. 6- Ocular c onditions a ssociated with c ataract
1.1. Trauma.
1.2. Uveitis.
1.3. High myopia.
1.4. Topical medication (particularly steroid eye drops).
1.5. Intraocular tumour.
2. 5- Systemic causes of cataract :.
2.1. Diabetes.
2.2. Other metabolic disorders (including galactosaemia, hypocalcaemia.
2.3. Systemic drugs (particularly steroids, chlorpromazine).
2.4. Infection (congenital rubella).
2.5. Myotonic dystrophy.
2.6. Atopic dermatitis.
2.7. Systemic syndromes (Down ’ s, Lowe ’ s).
2.8. Congenital, including inherited, cataract.
2.9. X - radiation.
3. 7- Treatment : management remains surgical. There is no need to wait for the cataract to ‘ ripen ’ and cause major visual loss.
4. 8- Complications of cataract surgery :
4.1. 1 Vitreous loss
4.2. 2 Iris prolapse
4.3. 3 Endophthalmitis.
4.3.1. painful red eye;
4.3.2. reduced visual acuity;
4.3.3. collection of white cells in the anterior chamber (hypopyon).
4.4. 4 Cystoid macular oedema
4.5. 5 Retinal detachment.
4.6. 6 Opacifi cation of the posterior capsule
5. 7.Previous eye injury or 8.inflammation
6. 1- Definition : is the name given to any light - scattering opacity within the lens wherever it is located
7. 2 -Symptoms:
7.1. 1.Glare.
7.2. 2.painless gradual loss of vision.
7.2.1. 3.Change in refraction.