A cataract is clouding or opacity of the lens inside the eye. It causes gradual blurring of vision and often glares. The Crystalline lens that is located inside the eye behind the iris, the colored part of the eye focuses light on the retina, which sends the image through the optic nerve to the brain.
Conversely, if the lens is clouded by a cataract, light is spreadin such a way that the lens can no longer focus it properly, resulting vision problems. Clouding of the lens occurs due to changes in the proteins and lens fibers.
There is no medicine to prevent or slow cataract progression. In age-related cataracts, changes in vision can be very gradual. Some may not initially recognize the visual changes. However, as cataracts worsen, vision symptoms increase.
Lasik Laser treatment is an option for eye power correction which is been in vogue for over two decades now. The first laser vision correction was performed in Germany in the late 80’s and since then, there’ve been major advancements, that have improved the quality of the surgery in terms of safety and precision. With advancement in technology those who were rejected earlier for some or other reasons, we are able to offer a very good chance to get rid of spectacle with the new technology acquired at ISHA NETRALAYA.
Before proceeding for Lasik Surgery the cornea is tested with Sirius a high precision instrument which does complete 3d analysis of the cornea enabling us to check the eligibility of the patient.
LASIK is an acronym for Laser-assisted in situ keratomileusis. This laser procedure permanently changes the shape of the cornea thus correcting the refractive error, the clear covering of the front of the eye, using an excimer laser.
Also called as Bladefree Lasik has raised safety to a whole new level, because the flap is no longer required to be made with a mechanical razor (blade), as was the case in the earlier technology represented by LASIK operations.
What is Retina?
Retina is the innermost layer of the eye and is light sensitive in nature. When we see an object, the light rays pass through the lens in our eyes and fall on the retina. They get converted into neural signals/impulses here and the optic nerve carries these visual stimuli to the brain that translates them back as images.
Here are some common ailments affecting the retina:
1. Diabetic Retinopathy – This develops in patients affected by diabetes 2. Macular Degeneration – Cells of the macula deteriorate leading to blurry vision 3. Retinal Detachment – The retina is torn and is pulled away from the back of the eye
What is Cornea?
Cornea is the transparent outermost layer of the human eye. Technically speaking, the cornea is not a single layer; it’s made of five delicate membranes that are arranged one below the other. Cornea plays a major role in focusing person’s vision. Cornea is transparent and spherical in shape which helps in refracting light from any object to create its image on retina thereby enabling us to see the object clear and sharp.
As per World Health Organization corneal blindness is the fourth leading cause of blindness in India.
The corneal surface and its structure are very delicate. Any injury or infection of the cornea can lead to damage leading to loss of corneal transparency and thereby disrupting the normal vision which might also lead to blindness.
Common problems that affect the cornea are corneal ulcers, keratitis (inflammation of the cornea) and keratoconus (thinning of the cornea) apart from the allergies, infections like herpes and the corneal abrasions caused by external injuries.
General symptoms observed are:
Inability to open eyes in bright light
Swelling of the eyelid
Corneal Transplant: Treating corneal blindness is possible through corneal transplant. In this treatment, a healthy cornea is transplanted in place of a diseased cornea.
Penetrating Keratoplasty where in the entire cornea is replaced with a donated cornea.
Lamellar Keratoplasty where a partial part of the cornea which is diseased is replaced with a donated cornea.
Glaucoma is a condition of the human eye where the optic nerve (the one that carries signals from the eye to the brain) gets damaged due to excessive pressure inside your eye.
Glaucoma is one of the world’s leading causes of blindnessucoma is a condition of the human eye where the optic nerve (the one that carries signals from the eye to the brain) gets damaged due to excessive pressure inside your eye. Glaucoma is one of the world’s leading causes of blindness.
How vision is affected by Glaucoma:
Glaucoma involves loss of vision due to damage of the optic nerve. The optic nerve carries sight images to the brain and any damage to the nerve results in damage to sight. Since the optic nerve is the primary carrier of visual stimulus to the brain, damage to it could actually result in significant loss of vision. Glaucoma generally affects both the eyes, although the pressure inside each eye could be different. While there are usually no warning signs, regular eye tests will help detect the onset of the disease
Certain level of pressure is needed for the eye to keep its shape and healthy but if the eye pressure gets too high, it squeezes the optic nerve and kills some of the nerve fibres, which leads to blindness. The first areas to be affected are the off-centre parts of the vision. If the glaucoma is not treated, the damage can progress to tubular vision and eventual loss of central vision, although blindness is rare.
This department deals with special vision care needs of children. Our core team comprises of some of the best pediatric ophthalmologists eye surgeon in Maharashtra.
Observe your Child:
Do they hold object very close to their eyes?
If you see them Excessively rubbing their eyes, blink or squint after close visual work?
Do they off and on complain of headaches after reading?
Becomes tired after reading?
Do they complained for having difficulty in comprehending what they have read?
Complain of headaches or eyestrain?
Have red or watery eyes (which could also be a sign of allergies).
Have you observed their eye that turns in or out?
Complaints of blurred vision with schoolwork or reading?
We care for your Child
Glass number – About 20-30% of the normal school going children have some kind of eye problems like Refractive Error (glass numbers).
Amblyopia or Lazy Eye – Amblyopia also called as lazy eye disorder of sight which results in decreased vision in an child’s eye that otherwise appears normal, or out of proportion to associated structural problems of the eye.
Squint – It is a condition in which the two eyes point in different directions. One eye may turn either in, or out while the other eye aims straight ahead. Due to this condition, both eyes do not always aim simultaneously at the same object. This results in a partial or total loss of stereo vision and binocular depth perception. The eye turns may be visible at all times or may come and go. In some cases, the eye misalignments are not obvious to the untrained observer.
Oculoplasty & Facial Aesthetics
Oculoplasty is a specialised branch of Ophthalmology that deals with injuries around the eye, lid related problems, tear drainage related problems, cancers of the eye and around the eye and all the cosmetic concerns around the eyes.
Types of Oculoplasty procedures:
Oculoplastic Surgery represents a variety of procedures that involve the orbit, eyelids, tear ducts, and the face. Ocular Reconstructive Surgery, Aesthetic Eyelid Surgery, Facial Plastic Surgery, and Cosmetic Procedures fall into this category.
A few Oculoplastic Surgeries are considered necessary both for medical and cosmetic purposes, for instance, periocular issues can affect a person’s appearance as well as their vision, eye comfort, and eye health.
Who Requires Occuloplasty surgery:
Although, a thorough eye examination is the best way to determine if you are in need of Oculoplasty surgery, there are certain indicators or symptoms which may warn you to see an ophthalmologist at an early stage.