Comprehensive Services
Every patient attending Out Patient Department at NNN undergo a Comprehensive Eye Check Up. After a thorough ocular and relevant medical History taking, patients undergo Visual Acuity check-up; Dry refraction and cycloplegic Refraction when applicable, Blood Pressure check-up, Non- Contact tonometry and syringing, if indicated, at no extra cost.
REFRACTIVE ERRORS
This is a condition of the eye where light rays are not properly focused on retina to produce a clear image.
Types
1. Myopia or Short sightedness – Patients have difficulty in seeing distant objects, usually comfortable in reading.
2. Hypermetropia or Long sightedness - Patients have more difficulty in seeing near objects. Sometimes distant objects may also become blurred.
3. Astigmatism: Patients see indistinct image in certain axis, e.g. one can recognize the face of any person but eyes and leaps may appear blurred.
Refractive errors happen because of the following factors:
1. Size of the eyeball – In Myopia most commonly the length of the eyeball is longer than normal and it is shorter in hypermetropia.
2. Change in the refractive index – Refractive index is the light bending capacity of any media. From air light rays pass through the cornea and lens, before producing an image on the retina. Refractive index of lens changes in certain varieties of cataract and diabetes producing refractive error.
Of all these factors, the abnormality of the size of the eyeball is most common in producing refractive errors. Recent years are seeing abnormal rise in the incidence of myopia among children. This is attributed to less exposure to sunlight, more indoor activities and prolonged use of electronic gadgets.
Myopic eyes are at higher risk of having retinal defects that need to be treated early to prevent blindness from retinal detachment. Yearly eye check up and detailed retina examination by Indirect Ophthalmoscope is advisable for myopia. Individuals with Myopia should not ignore symptoms of floaters (something floating in front of eye) or flashing of light and consult an eye doctor without delay to rule out any treatable retinal defect.
Presbyopia
It occurs in all people, usually starts around the age of 40 years and stays for life. In this condition, the individuals cannot see near objects clearly. The normal lens in the eye is flexible and changes its shape to focus objects at different distances. With age that flexibility reduces gradually and the individual finds it difficult to read books or identify small objects. This is part of aging process and not a disease.
Presbyopia is corrected traditionally by Bifocal lenses or reading glasses. With more and more use of computers in daily life progressive lenses offer comfortable vision for intermediate distance. Properly made progressive glasses can offer near normal vision at any distance.
REFRACTIVE ERRORS
This is a condition of the eye where light rays are not properly focused on retina to produce a clear image.
Types
1. Myopia or Short sightedness – Patients have difficulty in seeing distant objects, usually comfortable in reading.
2. Hypermetropia or Long sightedness - Patients have more difficulty in seeing near objects. Sometimes distant objects may also become blurred.
3. Astigmatism: Patients see indistinct image in certain axis, e.g. one can recognize the face of any person but eyes and leaps may appear blurred.
Refractive errors happen because of the following factors:
1. Size of the eyeball – In Myopia most commonly the length of the eyeball is longer than normal and it is shorter in hypermetropia.
2. Change in the refractive index – Refractive index is the light bending capacity of any media. From air light rays pass through the cornea and lens, before producing an image on the retina. Refractive index of lens changes in certain varieties of cataract and diabetes producing refractive error.
Of all these factors, the abnormality of the size of the eyeball is most common in producing refractive errors. Recent years are seeing abnormal rise in the incidence of myopia among children. This is attributed to less exposure to sunlight, more indoor activities and prolonged use of electronic gadgets.
Myopic eyes are at higher risk of having retinal defects that need to be treated early to prevent blindness from retinal detachment. Yearly eye check up and detailed retina examination by Indirect Ophthalmoscope is advisable for myopia. Individuals with Myopia should not ignore symptoms of floaters (something floating in front of eye) or flashing of light and consult an eye doctor without delay to rule out any treatable retinal defect.
Presbyopia
It occurs in all people, usually starts around the age of 40 years and stays for life. In this condition, the individuals cannot see near objects clearly. The normal lens in the eye is flexible and changes its shape to focus objects at different distances. With age that flexibility reduces gradually and the individual finds it difficult to read books or identify small objects. This is part of aging process and not a disease.
Presbyopia is corrected traditionally by Bifocal lenses or reading glasses. With more and more use of computers in daily life progressive lenses offer comfortable vision for intermediate distance. Properly made progressive glasses can offer near normal vision at any distance.
