Services

*FULL RX NOT EYEGLASSES PRESCRIPTION

• Refraction:
  This refers to the examination of the eyes for conditions such as myopia, hyperopia, and astigmatism.
  Sphere (Myopia): Represented with a “-” sign, e.g., -2.00 indicates 200 degrees of myopia.
  Sphere (Hyperopia): Represented with a “+” sign, e.g., +2.00 indicates 200 degrees of hyperopia.
  Cylinder: Represented with a “-” sign, e.g., -2.00 indicates 200 degrees of astigmatism. (In some older notations, a “+” sign was used, but this is rare now.)
  Axis: The shape of an astigmatic eye resembles a rugby ball, and the astigmatic axis is used to indicate the angle of the longer axis. It is generally not of concern, but is necessary for the lens manufacturer when making glasses.
  ADD: Represented with a “+” sign, e.g., +2.00 indicates 200 degrees of presbyopia.
  Visual Acuity - VA (Dist. VA & Near VA): Used to indicate the ability to see clearly, with several representations, such as: "Decimal": 0.1, 0.5, 1.0 / "Snellen": 6/60, 6/12, 6/6 (commonly used). 1.0 and 6/6 represent the same visual acuity, which is considered standard vision. The smaller the decimal value or the larger the Snellen denominator, the worse the vision, i.e., 0.8 or 6/8 is clearer than 0.2 or 6/30.
• Color Vision:
  This is to check for color blindness or color deficiency. Complete color blindness is rare, with red-green color deficiency being more common.
• Binocularity:
  Various methods are used to check if both eyes can coordinate properly. This primarily involves checking for strabismus, which can be further classified as “manifest strabismus” and “latent strabismus.” Optometrist will decide whether follow-up or referral is necessary based on the condition.
• Stereopsis:
  Primarily used to aid in assessing binocular coordination efficiency. Stereopsis is generally poorer in individuals with poor binocular coordination or significant differences in vision between the two eyes.
• Amsler Chart:
  One method to test for macular degeneration. If the grid appears deformed, blurry, or missing, it may indicate a problem with the macula.
• Ocular Health:
  Various instruments such as fundus photography and slit lamps are used to examine eye structures like the retina, lens, and cornea for issues such as cataracts and diabetic retinopathy.
• Intra Ocular Pressure:
  Non-contact tonometers measure intraocular pressure. Combined with fundus examination, they help assess the risk of glaucoma. Normal intraocular pressure ranges from 8-22 mmHg.

Optometrist will make appropriate recommendations based on the examination results, such as referrals to ophthalmologists or other professionals, or regular follow-ups.