"cataract, immature senile cataract, hyper mature senile cataract and cortical senilecataract. Then there are secondary cataracts, traumatic cataracts, drug-induced cataracts,congenital cataracts and radiation cataracts caused by the sunlight exposure. Cataractsare usually categorized according to their place of formation such as anterior corticalcataract and Posterior cortical cataract, anterior polar cataract and posterior polarcataract, anterior subcapsular cataract and posterior sucapsular cataract. (News MedicalLife Sciences)In order to determine whether you have a cataract or not, youroptometrist will check your medical history of your eyes, symptoms and will perform aproper eye examination. The optometrist will conduct a number of tests such as Visualacuity test in which an eye chart is used with both small and capital letters to measurehow well you can read these letters, Slit-lamp examination in which a microscope isused which lits light to the cornea of the eye, lens, iris and the space between iris andcornea in order to study the smaller parts of your eye and then there is a Retinal exam inwhich the doctor puts drops in your eyes to open your pupils dilate or to wide your pupilin order to examine the back of your eyes. By using a slit-lamp or ophthalmoscope youreye specialist can examine your lens for the signs of cataract. (MayoClinic)When the glasses that are prescribed by your doctor don’t clear your visionthen the only way to treat cataract is through cataract surgery. It is your doctor who willdecide whether cataract surgery would be right for you or not. Mostly doctorsrecommend cataract surgery to their patients when it starts affecting their personal livesor activities. Otherwise there is no rush of cataract surgery, unless the patient is sufferingfrom diabetes. Cataracts grew quickly in people suffering with diabetes. During cataract surgery the clouded lens is removed and is replaced with a clear artificial lens. Theartificial lens is known as the intraocular lens which remains forever in your eye and isplaced at the same position where the natural lens is placed. Cataract surgery isconsidered very safe but it does carry some complications with it such as risk ofinfection or bleeding. (Mayo Clinic)Optometry is basically a health-care profession dealing with eyes and its relatedstructures, its vision and visual system.In the field of optometry one can publiclyexamine eye conditions in high street optometrists, or can examine specific eyeconditions or can carry out researches in laboratories or universities. If one has a rightskill in optometry that person can serve anywhere in the world using his knowledge andskills.Optometrists provide cataract surgery postoperative care, and feel confident inexamining their patients for the detection of complications so that they may not return totheir ophthalmologists again. They only deal with daily routine problems andcomplications such as of redness of the eye, blurred vision and a slight increase inintraocular pressure. Only few of the optometrists are allowed to give therapeutic drugsto the patients dealing with visual impairments.In order to determine the progression and functional impairment in visiondue to cataract and to identify other causes of lens opacity, careful history is essential. Apatient having senile cataract usually comes with a history of gradual disturbance invision. Such visual aberrations depend upon the type of the cataract the patient is having.People with senile cataract usually have decreased visual acuity. Furthermore, a milddegree of posterior subcapsular cataract can also cause reduction in the visual acuity inwhich near acuity is affected more than the distance vision. People with senile cataract have the complaints of increased glare also. In this condition the patients are not able tosee the bright colors. These colors seem very faded to then and it is also impossible forsuch patients to drive at night. Then there comes the Monocular diplopia in which thenuclear changes are often found in the inner layers of the lens. (Medscape)Cataracts are usually classified according to the part of the lens that isaffected and also according to their visual appearance and etiology. The most commonage-related cataracts are: nuclear sclerotic cataract which is located in the lens of thenucleus; cortical cataract which is located in the cortex and posterior subcapsularcataract which is located towards the back of the eye. Nuclear cataract is considered asthe most common type of age-related cataract while Posterior subcapsular cataract isconsidered more common among the younger people. Numerous methods have beendeveloped for examining the severity of age-related cataracts. (NCBI)Most cataract operations are performed among elderly people of around 60 years of age.According to Cataract Surgery Guidelines, cataract surgery is generally really good andit was seen that geographical variation may have occurred in some areas. According toRNIB report, the average time to cataract treatment during 2012-2013 was 129days. Butaccording to Clinical Commissioning Groups in England it ranged from 44 days to 222days. It varies from region to region. (NCBI) Cataract management involves ophthalmologists, optometrists, nurses andtechnicians for the ultimate responsibility of diagnosis. The surgery itself is performedby ophthalmologists with great care and precise measurements. After the treatment the "