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Nature of Business
Service ProviderYear of Establishment
1989Cornea & Contact Lens
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Cornea is the transparent curved circular part of the front of the eyeball. It refracts the light entering the eye onto the lens, which then focuses it onto the retina. The cornea contains no blood vessels and is extremely sensitive to pain. Damage of cornea may happen by injury, diseases of eye and congenital disorders.
Contact lens:
Contact lens is an artificial device whose front substitutes the anterior surface of the cornea. Therefore in addition to correction of refractive error, the irregularities of the front surface of the cornea can also be corrected by the contact lens.
Types of contact lenses :
Depending upon the nature of the material used in their manufacturing, the contact lens can be divided into following three types.
- Hard lens
- Gas permeable lenses
- Soft lens
Disadvantage of PMMA hard lenses is that it can cause corneal abrasions.
Gas permeable lenses are made up of material which is permeable to oxygen. They are commonly manufactured from copolymer of PMMA and silicone containing vinyl monomer. Cellulose acetate butyrate (CAB) also used.
Soft lenses are made up of HEMA (hydroxymethylacrylate). They are made up of 1 –2mm larger than the corneal diameter .Being soft and oxygen permeable they are most comfortable and so well tolerated. Disadvantages include problem of wettability, proteinaceous deposits, getting cracked, limited life, inferior optical quality, more chances of corneal infections and cannot correct astigmatism of more than one diopter.
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Medical Retina
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In the brain, occipital cortex analyses the information and of picture takes place. Macula is the central portion of retina which has maximum concentration of photoreceptor cells and hence is very important for vision.
Introduction about retinal diseases
Common vascular disorders: retined resells commonly get damaged due to diseases diabetes and like hyperter. This causes swelling of retina, decreased blood supply, bleeding and ultimately detachment of the retina leading to irreversible vision loss and blindness. Regular checking of retina (yearly once) help in early detection and prompt treatment preventing permanent visual disability.
Retinal detachment : various factors like high Myopia (Nearsightedness), Trauma, complication during cataract operation Diabetic Retinopathy, etc can causes hole formation or pull on the retina leading to its separation from other layers of eye and causing blindness.
This is urgency and requires prompt treatments.
Age related macular degeneration Due to age, photoreceptors at Macula may lose their unction leading to dear eased vision sometimes there may formation of new blood vessels behind Macula. This leads to bleeding and sever loss of function.
Retinopathy of prematurity: Babies who are born before 9 months of gestation have their retina incompletely developed. If this disease is not deteced in time, it can lead to total blindness need to be seen within 30 days of their life.
Trauma: Various kinds of injuries e.g. blunt trauma with ball or fist, penetration trauma with needle or iron piece, etc. can damage retina. This needs t be managed urgently and skillfully to present blindness.
Tumours of Retina: Like Retinoblastoma, Corridal Melanoms are blinding diseases which can be lifelong threatening at times.
Infections: Sometimes after trauma or after an eye operation germs can enter the eye and give rise to infection in vitreous and retina. This is an emergency and needs to be tackled with injections and operation.
Macular hole: Due to age or trauma hole may form at Macula. This needs surgical treatment to preserve vision.
Retinal degenerations : Various degenerative conditions of retinal cells like Retinitis pigmentrsa, macular dystrophies etc. can causes progressive visual loss due to genetic Alsnormalitics.
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Cataract and Phaco
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Traditional monofocal lenses, including lens implants, focus light to only one point in space. A multifocal lens has more than one point of focus. A bifocal, which is a type of multifocal, has two points of focus, one at distance and the other at near.
A multifocal lens implant focuses light from distance and near simultaneously. This feature addresses both distant and near vision and makes the recipient less dependent on glasses or contact lenses.
The natural lens of a young person changes shape to produce a change in focus. As a person ages, the natural lens becomes more rigid and functions more like a monofocal lens. Lens implants do not change shape. A multifocal lens compensates for the eye s inability to change shape by allowing the eye to see at distance and near simultaneously through the same optic.
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