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Low Vision Aids and Contact Lenses

Low vision is partial sight, which cannot be fully corrected by surgery, medication or spectacles. It reduces the ability of the affected person to do many daily activities due to impaired vision. Non-treatable low vision may be seen in all ages, especially children and elderly.

Causes

  • Congenital eye diseases
  • Diabetic retinopathy
  • Age related macular degeneration
  • Myopic degeneration
  • Glaucoma
  • Retinitis pigmentosa

Treatment

The management of Low vision mainly involves counselling, low vision devices and rehabilitation depending on the individual needs of the patient.
Evaluation of low vision
Low vision is evaluated by a trained ophthalmologist or optometrist who specializes in this field. Patients are evaluated on the basis of age, degree of visual dysfunction, disease and requirement.

Types of low vision devices

There are two types of devices:
Optical devices:
  • Magnifying glasses: Help for reading and writing
  • Hand magnifier: Can be used in any position or angle
  • Stand magnifier: Has a fixed distance for easy movement
  • Telescope: Can be used in a classroom for blackboard or outdoors
  • Electronic magnifier: CCTV, AMEGO, JORDY
Non-optical Devices:
  • Table lamp
  • Reading stand
  • Bold tip pen
  • Large print materials

Procedure

Patient is called in the LVA clinic for assessment and counselling. Then different low vision devices are tested depending on the patient’s need and comfort. After the ideal low vision device is identified, the patient is counselled for its cost, care and its utility, following which it is dispensed.
Benefits of low vision devices
  • They help in improving near and distance vision
  • They help in adapting to home, school, workplace and the nearby environment.
  • THey help to build self confidence and feeling of independence
  • They could be of use in office for the visually challenged

Contact Lens and Low Vision Aids

Contact lenses are an alternative to glasses for the correction of refractive errors (spectacle numbers). Worn by over 120 million people worldwide, there are various contact lens options including soft contact lenses (including disposable), toric contact lenses, cosmetic contact lenses and rigid Gas-permeable (semi-soft) contact lenses.

Mohan Optics offers rehabilitative services to patients with low vision in the form of various optical magnifiers, telescopes and electronic low vision aids. With these devices and proper motivation, people with visual loss can often read, do modified close-up work, and continue to take good care of themselves.

FAQs

A thorough eye examination by your ophthalmologist can detect the presence of a cataract.
This varies from individual to individual, and may even differ between the two eyes.
Cataracts cannot be treated with medicines, eye drops, exercises or glasses, surgery is the only way to remove a cataract.
Surgery is required when the cataract causes loss of vision such that it starts to interfere with a person’s daily activities. They don’t need to be removed just because they are present.
Phacoemulsification is a non-stich method of cataract removal by ultrasonic fragmentation and aspiration of the cataractous lens through a small wound. It gives better intraoperative control and faster postoperative recovery. With this surgery, patients can resume their daily activities sooner and with fewer restrictions than traditional cataract surgery.
Phacoemulsification surgery is an easy and safe procedure thanks to advanced technology. As is the case with all surgeries, there are some complications that can happen after phacoemulsification surgery too. There could be a fluid discharge after the surgery, which can be treated with medication.
There is almost no chance of getting a cataract again after phaco surgery. However patients are advised to take good care for a few days after the surgery.
In almost all cases phacoemulsification surgery leads to improved vision. Right after surgery usually there is blurred vision, which gradually improves as the eye heals, with correct medication.
Most people don’t require glasses after this surgery, but in some cases they may be required after this treatment.
Tonc IOL’s, Multifocal IOL’s. Trifocal IOL’s are various premium intraocular lenses which help in eliminating the need for glasses following cataract surgery.