Diagnosis of hyperopia can be by simple eye examination test performed by an ophthalmologist or an optometrist.
Farsightedness tests
The initial hyperopia diagnosis is by visual acuity test - asking the patient to read letters from an eye chart, which is keeping at specific distance. Based on how-much the patient can read from the chart, the doctor can be able to assess how clearly the patient can see. Other tests are performing to determine the degree of hyperopia.
Testing for hyperopia may use several procedures in order to measure how the eyes focus light and to determine the power of any optical lenses needed to correct the reduced vision.
Hyperopia Visual acuity test
As part of the farsightedness testing, eye chart (with letter or symbols) is at a specific distance should identify by the person who is suspect with hyperopia. This test measures visual acuity. The top number of the fraction is the standard distance at which testing is performing, twenty feet. The bottom number is the smallest letter-size read.
Farsightedness test by Phoropter or phoroptor
It is an instrument used during an eye examination to measure refractive error and assess eyeglass prescriptions. The patient is requesting to sit behind the phoropter, and looks through it at an eye chart hanging at a specific distance. The optometrist then changes lenses and other settings, by asking the patient for their feedback on which settings give the best vision, based on this the doctor assesses the corrective lens value for the refractive error.
Hypersopia test by Retinoscope
It is useful to shine a light into a patient's eye for an eye doctor to examine the reflection off the retina. The light is moving back and forth across the pupil. Retinoscope is particularly useful in assessing corrective lenses for patients who are unable to give oral feedback to the eye doctor, in particular, to assess small kids. Retinoscope is also helpful to determine eye co-ordination how well the eyes work together, or accommodate, to make clear vision.
This testing may be without the use of eye drops to determine how the eyes respond under normal seeing conditions. In some cases, such as for patients who cannot respond verbally or when some of the eyes focusing power may hide; eye drops may be used. They temporarily keep the eyes from changing focus while perform testing.
Using the information obtained from these tests, along with the results of other tests of eye focusing and eye teaming, the optometrist can assess hyperopia. He or she will also determine the power of any lens correction needed to provide clear vision. After the eye test, the optometrist can discuss options for treatment.