A reduced ability to focus on near objects caused by loss of elasticity of the crystalline lens after age 45.
1
They represent about 40 percent of presbyopia cases.
2
This recently discovered illusion-the reverse Pulfrich effect-is caused by optical conditions induced by monovision, a common correction for presbyopia.
3
Purpose: To determine the prevalence of presbyopia, and near vision spectacle coverage in a rural population of Northwestern Nigeria.
4
This is particularly true in patients electing premium intraocular lens technology to correct astigmatism and presbyopia to minimize spectacle dependence.
5
It must be old sight (presbyopia).
6
The patients with a history of previous ocular surgery and those with ocular diseases besides refraction disorders and presbyopia were excluded.
7
The higher the degree of presbyopia the lower the mean VF score (P = 0.00).
8
These observations, plus a very large contribution from uncorrected presbyopia, highlight the need to scale up vision impairment alleviation efforts at all levels.
9
Presbyopia was defined as the inability to read N8 at 40 cm.
10
Presbyopia begins when the eye's natural lens gradually loses its flexibility, making it hard to focus on close objects.
11
Presbyopia was defined as the inability to read N8 at 40 cm in an indoor illumination using LogMAR E-chart.
12
They represent about 40 percent of presbyopia cases.
13
This recently discovered illusion-the reverse Pulfrich effect-is caused by optical conditions induced by monovision, a common correction for presbyopia.
14
Purpose: To determine the prevalence of presbyopia, and near vision spectacle coverage in a rural population of Northwestern Nigeria.
15
This is particularly true in patients electing premium intraocular lens technology to correct astigmatism and presbyopia to minimize spectacle dependence.
16
It must be old sight (presbyopia).